The Dinosaurs or Dinosauria, is the name of a group of archosaurian reptiles that lived from the Mid Triassic Period (230 mya) to today. Dinosaurs are arguably the most famous creatures ever to live on earth, first described as a group by anatomist Sir Richard Owen during a lecture in 1841, based on three genera, Megalosaurus, Iguanodon, and Hylaeosaurus. Dinosaurs now includes over a thousand species, hundreds of taxon, and around thirty families (excluding birds). Dinosaurs gained a huge popularity boost in 1993, with the release of the original Jurassic Park, and subsequent sequels every four years, with the exception of the fourth movie. The only dinosaurs left alive today are the sole theropod family to survive the Cretaceous extinction, the birds. Crocodilians are the only sister group alive of the dinosaurs. The closest extinct group were the pterosaurs. The word dinosaur itself derives from the Greek and means "terrible lizard". Despite this name, dinosaurs are not nor are closely related to lizards; and in fact many of them had some degree of feathers.

In the 1980s InGen managed to successfully clone dinosaurs from preserved DNA in fossilized amber. There is some debate regarding whether or not dinosaurs were warm or cold blooded, however the Jurassic World website lists carnivores as being warm blooded and herbivores as being cold blooded.

The term "dinosaur" is also popularly applied to many prehistoric animals that are not taxonomically classified as such, including prehistoric crocodiles, mosasaurs, ichthyosaurs, plesiosaurs and pliosaurs, pterosaurs, and synapsids such as Dimetrodon. This is frowned upon in scientific writing, but persists in the media and in everyday speech.

Dinosaur List

A complete list of all dinosaurs organized in an alphabetical order. Article links in italic text direct to non-dinosaur animals that are often called dinosaurs by the public.

Movie Dinosaurs

All dinosaurs and other prehistoric animals from throughout the movie canon series of Jurassic Park.

Alamosaurus Alexornis Allosaurus Alphadon Ankylosaurus Apatosaurus Argentinosaurus Atrociraptor Baryonyx Brachiosaurus Camarasaurus Carnotaurus Cearadactylus Ceratosaurus Chasmosaurus Chirostenotes Chungkingosaurus Compsognathus Corythosaurus Deinonychus	Dilophosaurus Dimetrodon Dimorphodon Diplodocus Dracorex Dreadnoughtus Dsungaripterus Edmontonia Edmontosaurus Gallimimus Giganotosaurus Gigantspinosaurus Gorgosaurus Hesperonychus Huayangosaurus Hypacrosaurus Iguanodon Indominus rex Indoraptor Kentrosaurus	Lambeosaurus Lystrosaurus Maaradactylus Maiasaura Mamenchisaurus Metriacanthosaurus Microceratus Monolophosaurus Moros Mosasaurus Muttaburrasaurus Nasutoceratops Nodosaurus Nothosaurus Olorotitan Ouranosaurus Oviraptor	Pachycephalosaurus Pachyrhinosaurus Parasaurolophus Parksosaurus Pentaceratops Polacanthus Prosaurolophus Protoceratops Psittacosaurus Pteranodon Pyroraptor Quetzalcoatlus Sauropelta Scorpios rex Sinoceratops Smilodon Sino-Spino Spinosaurus	Stegosaurus Struthiomimus Stygimoloch Styracosaurus Therizinosaurus Tapejara Torosaurus Triceratops Troodon Tsintaosaurus Tylosaurus Tyrannosaurus rex Velociraptor

Novel Dinosaurs

All dinosaurs and other prehistoric animals from throughout the novel canon series of Jurassic Park.

Apatosaurus Carnotaurus Cearadactylus Dilophosaurus Dryosaurus Euoplocephalus	Gallimimus Hadrosaurus Hypsilophodon Maiasaura Microceratus Mussaurus	Nanosaurus Ornitholestes Pachycephalosaurus Parasaurolophus Procompsognathus Stegosaurus	Styracosaurus Triceratops Tyrannosaurus rex Velociraptor

Major Group

Pterosauria

Here's a table summarizing the featured species based on their size, diet, time period, and place:

Species	Size	Diet	Time Period	Place Found
Dimorphodon macronyx	~1.4 m wingspan	Insectivore/Carnivore	Early Jurassic	England
Eudimorphodon ranzii	~1 m wingspan	Piscivore (Fish-eater)	Late Triassic	Italy
Anurognathus ammoni	~50 cm wingspan	Insectivore	Late Jurassic	Germany
Rhamphorhynchus etchesi	~1.8 m wingspan	Piscivore	Late Jurassic	England
Scaphognathus crassirostris	~1 m wingspan	Carnivore	Late Jurassic	Germany
Sordes pilosus	~60 cm wingspan	Insectivore/Carnivore	Late Jurassic	Kazakhstan
Dsungaripterus weii	~3.5 m wingspan	Molluscivore	Early Cretaceous	China
Arthurdactylus conandoylei	~4.6 m wingspan	Piscivore	Early Cretaceous	Brazil
Pterodaustro guinazui	~2.5 m wingspan	Filter feeder (Plankton)	Early Cretaceous	Argentina
Pteranodon sternbergi	~7 m wingspan	Piscivore	Late Cretaceous	North America
Quetzalcoatlus lawsoni	~10–15 m wingspan	Carnivore/Scavenger	Late Cretaceous	North America

These pterosaurs ranged from small insect-eaters to massive flyers like Quetzalcoatlus, one of the largest flying animals ever. Let me know if you want more details on any specific species!

Here's a breakdown of the Pterosaurs section for Teodora's Illustrated Encyclopedia of Dinosaurs and Prehistoric Animals, with a focus on different suborders, families, and notable species:

🦇 Characters – Pterosaurs

Category: “The Masters of the Sky”

Narrator: Teodora Villavicencio (voiced by Annemarie Blanco)

Tone: Awe-inspiring, adventurous, and fact-driven with a playful twist

Suborder: Rhamphorhynchoidea

The early pterosaurs, these creatures are known for their long tails and sharp, tooth-filled mouths. Often seen as the pioneers of flying reptiles, these pterosaurs paved the way for larger, more well-known species.

🦇 Family: Dimorphodontidae

Species: Dimorphodon macronyx

Personality: Early flyers, a bit clumsy but fearless

Teodora says:

“Dimorphodon had a lot of personality, though it wasn’t the best flyer around. With its teeth and a broad wingspan, it made sure no insect was safe—and it wasn’t afraid to give that clumsy flight a try.”

🦇 Family: Eudimorphodontidae

Species: Eudimorphodon ranzii

Personality: Agile and quick, a skilled flier

Teodora says:

“This little guy was all about precision. Eudimorphodon was more agile than most, darting through the skies with speed that would have made other pterosaurs jealous. Don’t underestimate its small size!”

🦇 Family: Rhamphorhynchidae

Known for their long tails and toothy mouths, this family of pterosaurs was extremely varied in terms of shape and size.

🦇 Anurognathus ammoni

Personality: Small, swift, and insect-hunting

Teodora says:

“Anurognathus was an expert insect hunter. This pint-sized pterosaur had a tiny head, but a big appetite—especially for flying bugs! Imagine a jet in a miniature form, but focused on dinner.”

🦇 Rhamphorhynchus etchesi

Personality: Graceful, yet equipped with a wide mouth for fishing

Teodora says:

“Rhamphorhynchus was like a flying fisherman. With its wide jaws, it swooped through the skies, snatching fish from the water below. Elegant and sharp, it didn’t need much more than its perfectly designed mouth to catch its next meal.”

🦇 Scaphognathus crassirostris

Personality: A bit of a scavenger, but efficient in the air

Teodora says:

“Don’t let Scaphognathus’ rather bulky appearance fool you—it was just as effective in the air. This pterosaur wasn’t picky, whether it was catching prey or just looking for an easy snack.”

🦇 Sordes pilosus

Personality: The feathery one, slightly different from the rest

Teodora says:

“Sordes was one of the first pterosaurs we can definitively say had feathers! It might have been a little hairy compared to others, but that’s what makes it special. This flying reptile wasn’t just a scaled wonder; it had some fuzzy charm.”

Suborder: Pterodactyloidea

These pterosaurs are the giants of the skies. With massive wingspans and varied hunting strategies, they’ve captured the imagination of many. From fishing in the seas to soaring across the skies, this suborder represents the pinnacle of flying reptiles.

🦇 Family: Dsungaripteridae

Species: Dsungaripterus weii

Personality: Strong-jawed, capable of catching tough prey

Teodora says:

“Dsungaripterus had some serious bite—literally. With its muscular jaws, it wasn’t afraid to tackle hard-to-catch prey. Flying wasn’t just about the view for this guy, it was all about the hunt.”

🦇 Family: Pterodaustriidae

Species:

Arthurdactylus conandoylei
Pterodaustro guinazui

Personality: Filter-feeders and early specialists in skimming the waters

Teodora says:

“Arthurdactylus and Pterodaustro were a little strange by pterosaur standards—skimming the waters for tiny prey. Instead of hunting, they used their long beaks to filter food from the sea, like the early versions of today’s flamingos. They were masters of a specialized diet.”

🦇 Family: Ornithocheiridae

This family is home to some of the largest flying reptiles to ever soar through the skies.

🦇 Pteranodon sternbergi

Personality: Majestic, graceful, and the true symbol of flying giants

Teodora says:

“Pteranodon was no ordinary pterosaur. With a wingspan as wide as a jetliner, it flew over the waters, catching fish from the surface and flying effortlessly across the skies. It’s the big, graceful king of the sky.”

🦇 Quetzalcoatlus lawsoni

Personality: The giant, towering over other pterosaurs

Teodora says:

“Quetzalcoatlus was the giant among pterosaurs. Its wings stretched far and wide, making it one of the largest flying creatures ever. It wasn’t just flying; it was soaring in style, and it dominated its domain from the skies.”

Would you like to continue diving into more prehistoric creatures or explore another section of the series?

Theropoda

Here's a table summarizing the featured species based on their size, diet, time period, and place:

Species	Size	Diet	Time Period	Place Found
Coelophysis bauri	~3 m long	Carnivore	Late Triassic	North America
Procompsognathus triassicus	~1.2 m long	Carnivore	Late Triassic	Germany
Saltopus elginensis	~1 m long	Carnivore	Late Triassic	Scotland
Coelurus fragilis	~2.4 m long	Carnivore	Late Jurassic	North America
Moros intrepidus	~1.2 m long	Carnivore	Early Cretaceous	North America
Compsognathus longipes	~1.4 m long	Carnivore	Late Jurassic	Europe (Germany, France)
Dromiceiomimus samueli	~3.5 m long	Omnivore	Late Cretaceous	North America
Gallimimus bullatus	~6 m long	Omnivore	Late Cretaceous	Mongolia
Ornithomimus velox	~4 m long	Omnivore	Late Cretaceous	North America
Struthiomimus altus	~4 m long	Omnivore	Late Cretaceous	North America
Deinocheirus mirificus	~11 m long	Omnivore	Late Cretaceous	Mongolia
Oviraptor philoceratops	~2 m long	Omnivore	Late Cretaceous	Mongolia
Therizinosaurus cheloniformis	~10 m long	Herbivore	Late Cretaceous	Mongolia
Stenonychosaurus inequalis	~3 m long	Carnivore/Omnivore	Late Cretaceous	North America
Troodon formosus	~2.5 m long	Carnivore/Omnivore	Late Cretaceous	North America
Bambiraptor feinbergi	~1 m long	Carnivore	Late Cretaceous	North America
Deinonychus antirrhopus	~3.4 m long	Carnivore	Early Cretaceous	North America
Dromaeosaurus albertensis	~2 m long	Carnivore	Late Cretaceous	North America
Saurornitholestes sullivani	~2 m long	Carnivore	Late Cretaceous	North America
Velociraptor osmolskae	~2 m long	Carnivore	Late Cretaceous	Mongolia
Archaeopteryx albersdoerferi	~0.5 m wingspan	Insectivore/Carnivore	Late Jurassic	Germany
Ceratosaurus nasicornis	~6 m long	Carnivore	Late Jurassic	North America
Dilophosaurus wetherilli	~7 m long	Carnivore	Early Jurassic	North America
Elaphrosaurus bambergi	~6 m long	Carnivore	Late Jurassic	Africa (Tanzania)
Eustreptospondylus oxoniensis	~5 m long	Carnivore	Middle Jurassic	Europe (England)
Giganotosaurus carolinii	~15 m long	Carnivore	Late Cretaceous	South America
Poekilopleuron bucklandii	~9 m long	Carnivore	Middle Jurassic	Europe (France)
Proceratosaurus bradleyi	~3 m long	Carnivore	Middle Jurassic	Europe (England)
Allosaurus europaeus	~12 m long	Carnivore	Late Jurassic	Europe (Portugal), North America
Yangchuanosaurus zigongensis	~10 m long	Carnivore	Late Jurassic	China
Acrocanthosaurus atokensis	~11 m long	Carnivore	Early Cretaceous	North America
Spinosaurus aegyptiacus	~15 m long	Piscivore/Carnivore	Late Cretaceous	North Africa
Albertosaurus sarcophagus	~9 m long	Carnivore	Late Cretaceous	North America
Alioramus altai	~5 m long	Carnivore	Late Cretaceous	Mongolia
Daspletosaurus horneri	~9 m long	Carnivore	Late Cretaceous	North America
Tarbosaurus bataar	~10 m long	Carnivore	Late Cretaceous	Mongolia
Tyrannosaurus rex	~12–13 m long	Carnivore	Late Cretaceous	North America

This list includes some of the most famous carnivorous dinosaurs, from small raptor-like species to massive predators like Tyrannosaurus rex and Spinosaurus. Let me know if you need further details!

Here's an outline of the Saurischia Theropods section for Teodora's Illustrated Encyclopedia of Dinosaurs and Prehistoric Animals, featuring a detailed breakdown of various families within the Theropoda suborder, focusing on the carnivorous dinosaurs and their fascinating characteristics:

🦖 Characters – Saurischia: Theropods (Carnivorous Dinosaurs)

Category: “The Kings of the Hunt”

Narrator: Teodora Villavicencio (voiced by Annemarie Blanco)

Tone: Adventurous, intense, with a focus on the varied hunting strategies and behaviors of these iconic predators

Infraorder: Coelurosauria

Coelurosauria is a diverse group of theropods, from small, agile hunters to larger, more robust predators. Many of these were feathered, showing early evidence of the connection between dinosaurs and modern birds.

🦖 Family: Podokesauridae

These early theropods were small, light, and fast, often considered some of the most primitive of the carnivorous dinosaurs.

🦖 Coelophysis bauri

Personality: Quick and nimble, a small but deadly predator

Teodora says:

“Coelophysis was fast—like a darting bullet. It zipped through the forests, hunting small prey and, in packs, even more deadly. This was a true hunter of the Triassic period.”

🦖 Procompsognathus triassicus

Personality: One of the earliest carnivores with a predatory instinct

Teodora says:

“Procompsognathus wasn’t just a pretty face—this small but agile creature was quick on its feet and always on the hunt. Small, but fierce.”

🦖 Saltopus elginensis

Personality: An early, primitive theropod with a rapid strike

Teodora says:

“Saltopus may have been small, but it was no slouch when it came to speed. Think of it as the early version of a velociraptor, darting in and out of the underbrush.”

🦖 Family: Coeluridae

These theropods were slender and agile, often bipedal with sharp teeth that made them expert hunters.

🦖 Coelurus fragilis

Personality: Slim and swift, perfect for chasing prey

Teodora says:

“Coelurus was the ultimate sprint predator. Light and fast, this little dinosaur was a menace to anything that tried to escape.”

🦖 Moros intrepidus

Personality: A bold and swift carnivore with sharp instincts

Teodora says:

“Moros might have been small, but it had the attitude of a larger predator. It was quick, ferocious, and never backed down from a chase.”

🦖 Family: Compsognathidae

These were small, agile theropods that thrived during the late Jurassic and Cretaceous periods, often depicted as very active and quick predators.

🦖 Compsognathus longipes

Personality: The ultimate swift predator, small but relentless

Teodora says:

“Compsognathus was like the speedster of the dinosaur world. Despite its small size, it was fast, smart, and always ready to hunt down its prey.”

🦖 Family: Ornithomimidae

Known for their bird-like features, these dinosaurs were fast runners and likely used their speed to escape predators rather than to hunt.

🦖 Dromiceiomimus samueli

Personality: Quick on its feet, always in motion

Teodora says:

“Dromiceiomimus was the sprinter of the Cretaceous. With its long legs and light body, it was made for dashing across open ground to escape danger.”

🦖 Gallimimus bullatus

Personality: The ostrich of the dinosaur world, fast and flighty

Teodora says:

“Gallimimus was a master of speed. Though it wasn’t built for battle, it was built for escape. If a predator was nearby, this guy would out-run them every time.”

🦖 Ornithomimus velox

Personality: Sleek, fast, and always ahead of the pack

Teodora says:

“Ornithomimus was built for speed. It didn’t need sharp claws to hunt; it only needed to be faster than anything chasing it!”

🦖 Struthiomimus altus

Personality: A bipedal runner, always sprinting across the plains

Teodora says:

“Struthiomimus was the sprinter—not an ounce of fat on it, always moving at breakneck speeds.”

🦖 Family: Deinocheiridae

Deinocheirus is one of the more mysterious theropods due to its large size and peculiar features. Despite being a theropod, it didn’t exactly fit into the traditional "hunter" role.

🦖 Deinocheirus mirificus

Personality: Large, but surprisingly peaceful and herbivorous

Teodora says:

“Deinocheirus might have looked like a predator with its huge arms, but it wasn’t chasing down prey—it was likely feeding on plants. A gentle giant of the Cretaceous.”

🦖 Family: Oviraptoridae

These theropods are often misunderstood due to their name. Oviraptors were once thought to be egg-stealers, but evidence suggests that they were caring parents.

🦖 Oviraptor philoceratops

Personality: Caring parent, with a surprising twist

Teodora says:

“Don’t let the name fool you—Oviraptor was all about family. It wasn’t the egg thief people once thought; it was a loving parent that protected its young fiercely.”

🦖 Family: Therizinosauridae

Therizinosaurs were among the most bizarre theropods. Their large claws and herbivorous diet set them apart from the typical carnivorous theropods.

🦖 Therizinosaurus cheloniformis

Personality: Clawed herbivore, not a predator

Teodora says:

“Therizinosaurus looked like a nightmare with its claws, but this dinosaur was no predator—it was a plant-eater, using those claws to strip foliage from trees.”

Would you like to continue exploring other families in Theropoda, or would you like to dive deeper into another category or dinosaur?

Here’s the continuation of the Theropoda (Carnivorous Dinosaurs) section for Teodora's Illustrated Encyclopedia of Dinosaurs and Prehistoric Animals, featuring the Infraorder: Coelurosauria, Deinonychosauria and additional families within these categories:

Infraorder: Coelurosauria, Deinonychosauria

This section introduces some of the most infamous and cunning predators in the dinosaur kingdom, known for their agility, sharp claws, and bird-like features. These theropods bridged the gap between true carnivores and the eventual emergence of modern birds.

🦖 Family: Saurornithoididae

These theropods are closely related to the dromaeosaurs and other "raptors," often depicted as intelligent, nimble, and skilled hunters.

🦖 Stenonychosaurus inequalis

Personality: Highly intelligent and quick-witted, a true apex predator of its size

Teodora says:

“Stenonychosaurus had a sharp mind, and it knew how to hunt. With its keen senses, this dinosaur could track its prey and strike fast, making it one of the smartest hunters of its time.”

🦖 Troodon formosus

Personality: Known for its large brain and advanced behavior, possibly one of the smartest dinosaurs

Teodora says:

“Troodon is considered by many to be the brainiest of the dinosaurs. It had excellent vision and was likely an intelligent, opportunistic predator. You wouldn’t want to cross this one in the wild.”

🦖 Family: Dromaeosauridae

A family of fierce, intelligent theropods often described as the ‘raptors.’ Known for their curved claws, speed, and pack-hunting behavior, these dinosaurs were some of the most skilled predators.

🦖 Bambiraptor feinbergi

Personality: Small, but quick and deadly

Teodora says:

“Bambiraptor was small, but it wasn’t to be underestimated. Like many of its relatives, it was quick and agile, and in packs, extremely efficient hunters.”

🦖 Deinonychus antirrhopus

Personality: Fierce and fast, with a reputation

Teodora says:

“Deinonychus was no mere chicken—this predator was fast, deadly, and had claws capable of slicing through anything that crossed its path. It was the prototype for many of the raptors we know today, including the infamous Velociraptor.”

🦖 Dromaeosaurus albertensis

Personality: A bit smaller, but no less dangerous

Teodora says:

“Dromaeosaurus might have been smaller than some of its cousins, but it had all the right moves—quick on its feet, sharp claws, and a wicked bite.”

🦖 Saurornitholestes sullivani

Personality: Agile, with a knack for hunting in packs

Teodora says:

“Saurornitholestes was a swift predator, much like its close relatives, and probably hunted in packs to bring down larger prey. It was a master of speed.”

🦖 Velociraptor osmolskae

Personality: The classic raptor, made famous by films

Teodora says:

“Jurassic Park fans, here’s your favorite! But I’m sorry to say, this velociraptor was much smaller than its movie counterpart and had feathers—yes, feathers!”

🦖 Order: Archaeopterygiformes

A fascinating order that connects the worlds of dinosaurs and birds. Archaeopteryx is widely recognized as the “first bird,” a pivotal discovery in understanding the evolutionary link between dinosaurs and modern-day birds.

🦖 Archaeopteryx albersdoerferi

Personality: Early bird with a mix of reptilian and avian traits

Teodora says:

“Archaeopteryx was the ultimate crossover—part dinosaur, part bird. With feathers on its arms and tail, it could fly short distances, but it also had the teeth and claws of a traditional theropod. Talk about evolutionary innovation!”

Would you like to explore more species in this family or move on to another category or suborder?

Here’s the continuation for the Infraorder: Ceratosauria section, focusing on the Ceratosauridae family and its notable species:

Infraorder: Ceratosauria

Ceratosauria includes some of the more primitive theropods, distinguished by their relatively small size, often unique cranial features, and adaptations for fast, efficient hunting. These dinosaurs existed primarily during the Late Triassic to Early Jurassic periods and are known for their distinct body shapes and sometimes unusual behaviors.

🦖 Family: Ceratosauridae

This family is home to some of the earliest, most distinctive theropods, many of which had unusual skull shapes, such as horns or crests. These dinosaurs were highly specialized for hunting, and their remains provide insight into the early stages of theropod evolution.

🦖 Ceratosaurus nasicornis

Personality: Horned and fearsome, the apex predator of its time

Teodora says:

“Ceratosaurus was one of the most fearsome predators of its day, with a large horn on its nose and sharp teeth made for tearing through prey. Its head was built like a wrecking ball, ready to break through anything that crossed its path. A truly iconic dinosaur.”

🦖 Dilophosaurus wetherilli

Personality: Sleek, fast, and with a strange crest

Teodora says:

“Dilophosaurus, with its double crest and long legs, was a graceful predator. Despite its small size, it could probably outrun most other dinosaurs and had a unique look that sets it apart. But here’s a fun fact—it did NOT spit venom as shown in movies. That’s a myth!”

🦖 Elaphrosaurus bambergi

Personality: Lightweight and fast, a true runner

Teodora says:

“Elaphrosaurus was a streamlined predator, built for speed. Its long legs and slender body made it an excellent runner, perfect for chasing down smaller prey. Though not as well known as some of its relatives, it was definitely one of the quickest dinosaurs.”

Would you like to dive deeper into more families of Ceratosauria or explore other sections of the dinosaur kingdom?

Here’s the breakdown for the Infraorder: Carnosauria, including the Megalosauridae, Allosauridae, Spinosauridae, and Tyrannosauridae families.

Infraorder: Carnosauria

Carnosauria encompasses some of the largest and most powerful theropods to ever roam the Earth. These massive carnivores were key players in the ecosystem of the Jurassic and Cretaceous periods. Unlike the smaller and faster Coelurosauria, members of Carnosauria were typically built for strength, with robust bodies and powerful jaws.

🦖 Family: Megalosauridae

Megalosauridae includes a variety of large carnivorous dinosaurs that were among the first to be recognized in paleontological history. These dinosaurs were primarily large, slow-moving predators with strong jaws and powerful claws, often preying on herbivores.

🦖 Eustreptospondylus oxoniensis

Personality: Agile, sharp-toothed hunter

Teodora says:

“Though Eustreptospondylus wasn’t as massive as some of its relatives, it still packed a punch with its sharp teeth and sleek body. This predator could probably catch smaller prey with its quick reflexes, and its fossils show us an early version of what would become some of the most fearsome carnivores.”

🦖 Giganotosaurus carolinii

Personality: Massive and relentless

Teodora says:

“Giganotosaurus might be overshadowed by its cousin T. rex, but don't let that fool you—this colossal theropod was one of the largest predators of the Cretaceous period, with a fearsome size and deadly precision.”

🦖 Poekilopleuron bucklandii

Personality: Mid-sized, energetic predator

Teodora says:

“Poekilopleuron was a formidable carnivore in the early Jurassic. It was built for speed and agility, making it a skilled hunter of smaller prey. Despite not being as famous as the giants of the era, it was certainly an effective predator in its own right.”

🦖 Proceratosaurus bradleyi

Personality: Small but fierce

Teodora says:

“Proceratosaurus was a slender predator, but it certainly didn’t lack ferocity. It had a long skull and sharp teeth, and though smaller than other carnosaurians, it would have been swift and cunning, hunting for small prey in its environment.”

🦖 Family: Allosauridae

The Allosauridae family includes some of the most well-known and large theropods of the late Jurassic period. These dinosaurs were characterized by their large size, strong jaws, and predatory habits. Many of them were apex predators of their time, capable of hunting both individually and in packs.

🦖 Allosaurus europaeus

Personality: Aggressive, apex predator

Teodora says:

“Allosaurus was a relentless predator that ruled the Jurassic. With its massive jaws, sharp teeth, and powerful build, it could hunt large prey like sauropods. It was certainly the top predator in its time.”

🦖 Yangchuanosaurus zigongensis

Personality: Agile, with a big bite

Teodora says:

“Yangchuanosaurus was a fast and ferocious hunter. It shared many characteristics with Allosaurus but had a more agile body, allowing it to strike quickly and precisely. This is one dinosaur you wouldn’t want to run into in the Jurassic forest.”

🦖 Family: Spinosauridae

Spinosaurids are some of the most interesting theropods, known for their large, crocodile-like heads, long jaws, and spiny back sail. They were adapted to both land and water, often seen as semi-aquatic predators.

🦖 Acrocanthosaurus atokensis

Personality: Strong and towering

Teodora says:

“Acrocanthosaurus was a powerhouse—with a massive body and strong limbs, it could overpower most creatures it encountered. It was likely a solitary predator, stalking through the forests looking for its next meal.”

🦖 Spinosaurus aegyptiacus

Personality: Semi-aquatic, fish-eater

Teodora says:

“Spinosaurus is incredible! This dinosaur wasn’t like other theropods—it was a semi-aquatic predator, with a long snout perfect for catching fish. Its sail-like back, often depicted in a dramatic fashion, makes it one of the most recognizable dinosaurs of all time.”

🦖 Family: Tyrannosauridae

Tyrannosauridae includes the largest of the theropods, with huge jaws capable of crushing bone and powerful legs that made them effective predators. The family is most famous for Tyrannosaurus rex, but many other species share similar traits and were among the top predators of their respective periods.

🦖 Albertosaurus sarcophagus

Personality: Smaller relative of T. rex

Teodora says:

“Albertosaurus might not have been as massive as T. rex, but it was still a formidable predator. It had a similar body shape and hunting style, but its slightly smaller size may have made it quicker, allowing it to take down prey more efficiently.”

🦖 Alioramus altai

Personality: Smaller, yet deadly

Teodora says:

“Alioramus was one of the slighter members of the Tyrannosaur family. It had a more slender build compared to T. rex, but don’t let that fool you—it was still a skilled predator, capable of hunting and thriving in its environment.”

🦖 Daspletosaurus horneri

Personality: Strong and fast

Teodora says:

“Daspletosaurus was a deadly relative of T. rex, and while it wasn’t quite as massive, it was definitely formidable. It likely used its speed and strength to bring down large prey with ease.”

🦖 Tarbosaurus bataar

Personality: Fearsome and powerful

Teodora says:

“Tarbosaurus was the Asian cousin of T. rex, with a similar build and hunting style. It dominated its environment, scavenging or hunting large herbivores, using its incredible jaw strength to crush bone.”

🦖 Tyrannosaurus rex

Personality: King of the Cretaceous

Teodora says:

“Tyrannosaurus rex—the king of dinosaurs. With jaws that could crush bone, muscular legs, and a fearsome reputation, T. rex was an apex predator. Its presence was dominant, and it remains one of the most iconic dinosaurs of all time.”

Would you like to continue exploring more species, or would you like to dive into another section of the prehistoric world?

Sauropodomorpha

Here’s a detailed table summarizing the featured species based on their size, diet, time period, and place:

Species	Size	Diet	Time Period	Place Found
Herrerasaurus ischigualastensis	~6 m long	Carnivore	Late Triassic	South America
Sanjuansaurus gordilloi	~3 m long	Carnivore	Late Triassic	South America
Smurfette	~1.5 m high	Omnivore	Late Triassic	Hypothetical Species
Staurikosaurus pricei	~2.2 m long	Carnivore	Late Triassic	South America
Anchisaurus polyzelus	~2.4 m long	Herbivore	Early Jurassic	North America
Efraasia minor	~6 m long	Herbivore	Late Triassic	Europe (Germany)
Thecodontosaurus antiquus	~2 m long	Herbivore	Late Triassic	Europe (UK)
Massospondylus kaalae	~4 m long	Herbivore	Early Jurassic	Africa
Mussaurus patagonicus	~6 m long	Herbivore	Late Triassic	South America
Plateosaurus gracilis	~6–10 m long	Herbivore	Late Triassic	Europe (Germany, Switzerland)
Riojasaurus incertus	~10 m long	Herbivore	Late Triassic	South America
Barapasaurus tagorei	~14 m long	Herbivore	Early Jurassic	India
Cetiosaurus oxoniensis	~16 m long	Herbivore	Middle Jurassic	Europe (UK)
Brachiosaurus altithorax	~25 m long	Herbivore	Late Jurassic	North America, China
Sauroposeidon proteles	~30 m long	Herbivore	Early Cretaceous	North America
Camarasaurus supremus	~18 m long	Herbivore	Late Jurassic	North America
Euhelopus zdanskyi	~15 m long	Herbivore	Late Jurassic	China
Opisthocoelicaudia skarzynskii	~12 m long	Herbivore	Late Cretaceous	Mongolia
Apatosaurus ajax	~23 m long	Herbivore	Late Jurassic	North America
Dicraeosaurus sattleri	~12 m long	Herbivore	Late Jurassic	Africa (Tanzania)
Diplodocus hallorum	~32 m long	Herbivore	Late Jurassic	North America
Mamenchisaurus sinocanadorum	~26 m long	Herbivore	Late Jurassic	China
Supersaurus vivianae	~33–35 m long	Herbivore	Late Jurassic	North America
Alamosaurus sanjuanensis	~30 m long	Herbivore	Late Cretaceous	North America
Dreadnoughtus schrani	~26 m long	Herbivore	Late Cretaceous	South America
Saltasaurus loricatus	~12 m long	Herbivore	Late Cretaceous	South America

This list includes prosauropods (early plant-eating dinosaurs) and sauropods (long-necked, giant herbivores), some of the largest land animals to ever exist. Let me know if you need more details on any species!

Also, could you clarify Smurfette’s inclusion? Are you envisioning a specific dinosaur version of the character? 😊

Here's the breakdown for the Suborder: Sauropodomorpha, including the Prosauropoda and Sauropoda infraorders, as well as their corresponding families and species. This is part of the larger group of Saurischian dinosaurs, known for their massive size and long necks, with early species serving as the precursors to the iconic sauropods.

Suborder: Sauropodomorpha

Sauropodomorpha are characterized by their long necks and herbivorous diet, with early members being smaller but still impressive in terms of size and adaptation. This suborder includes some of the first long-necked herbivores that would eventually evolve into the iconic sauropods.

Infraorder: Prosauropoda

Prosauropods were among the earliest large herbivores, characterized by their small to medium size and early evolution in the Triassic period. These dinosaurs had long necks and were typically plant-eaters. They are considered the ancestors of the more massive sauropods that would dominate the Mesozoic.

🦖 Family: Herrerasauridae

This family is notable for early theropod-like dinosaurs, but it also includes some early herbivores. Herrerasaurus is often considered an early predator, but its family is often linked to the prosauropod evolution.

Herrerasaurus ischigualastensis Personality: Early, small carnivorous dinosaur Teodora says: "Herrerasaurus is an early evolutionary wonder. This little guy was predatory but had characteristics that would eventually lead to herbivores with long necks!"
Sanjuansaurus gordilloi Personality: Smaller, agile relative Teodora says: "Sanjuansaurus shares many traits with Herrerasaurus but might have been a little more agile and nimble on its feet."
Smurfette (La Schtroumpfette) Personality: Larger than the typical Smurf, with dinosaur traits Teodora says: "Here we have Smurfette, not your typical Smurf! Though small, she's a giant among her kind, with a long neck and a mighty presence in the prehistoric world."
Staurikosaurus pricei Personality: Fast, sharp-eyed hunter Teodora says: "Staurikosaurus was quick and an early predator with a slim build, marking the transition from carnivores to herbivorous giants that followed."

🦖 Family: Anchisauridae

These dinosaurs were among the earliest members of the prosauropods, relatively small and herbivorous.

Anchisaurus polyzelus Personality: Small, early herbivore Teodora says: "Anchisaurus represents the humble beginnings of the long-necked dinosaurs. A small herbivore, it was one of the first to adapt to life in the Triassic period."
Efraasia minor Personality: Lightweight, nimble herbivore Teodora says: "Efraasia was more agile compared to other prosauropods and helped lay the groundwork for the massive herbivores to come."
Thecodontosaurus antiquus Personality: Early, slow-moving herbivore Teodora says: "A precursor to the great sauropods, Thecodontosaurus might have been small, but it laid the foundation for the giants of the future."

🦖 Family: Plateosauridae

This family includes some of the most famous early herbivorous dinosaurs, notable for their size and adaptations to life as plant-eaters.

Massospondylus kaalae Personality: Early and hearty herbivore Teodora says: "Massospondylus was one of the largest prosauropods, with a sturdy build and the ability to thrive in the early Mesozoic environment."
Mussaurus patagonicus Personality: Smaller but significant herbivore Teodora says: "Mussaurus is an early example of what would become huge herbivorous dinosaurs, with a long neck and slow-moving lifestyle."
Plateosaurus gracilis Personality: Elegant and tall Teodora says: "Plateosaurus shows us the beginning of long necks in herbivores. It was elegant and tall, and its adaptation for browsing on plants would eventually evolve into the sauropods we know."

🦖 Family: Melanorosauridae

The species in this family were part of the prosauropod group and are known for their herbivorous diet and adaptation to terrestrial life.

Riojasaurus incertus Personality: Strong, early herbivore Teodora says: "Riojasaurus was part of the early giants, with a strong body suited for reaching tall plants and feeding on the best vegetation of the Triassic period."

Infraorder: Sauropoda

Sauropods are the giants of the Mesozoic, known for their enormous size, long necks, and herbivorous diets. These animals dominated the Earth during the Jurassic and Cretaceous periods, with species that grew to lengths exceeding 100 feet.

🦖 Family: Cetiosauridae

Cetiosauridae includes some of the earliest true sauropods, notable for their long necks and relatively smaller sizes compared to later giants.

Barapasaurus tagorei Personality: Early massive herbivore Teodora says: "Barapasaurus was one of the first true sauropods, a giant that could barely be stopped by anything in its path."
Cetiosaurus oxoniensis Personality: Large, yet nimble Teodora says: "Cetiosaurus wasn’t quite as colossal as later sauropods, but it had a long neck and a big appetite, grazing on plants with no competition."

🦖 Family: Brachiosauridae

Brachiosaurids are known for their massive size and long necks, with species like Brachiosaurus being iconic for their unique body structure.

Brachiosaurus altithorax Personality: Towering and majestic Teodora says: "Brachiosaurus had an elevated head, allowing it to graze on the tallest trees. Its massive body made it one of the most iconic sauropods."
Sauroposeidon proteles Personality: Colossal, towering figure Teodora says: "Sauroposeidon was one of the largest dinosaurs to ever walk the Earth. It would have towered above the forest, reaching for the highest vegetation."

🦖 Family: Camarasauridae

This family includes relatively large but stocky sauropods, often with well-constructed, robust bodies that helped them thrive in a variety of ecosystems.

Camarasaurus supremus Personality: Strong, reliable grazer Teodora says: "Camarasaurus was a reliable herbivore, with a robust build that helped it survive through many different climates and plant life in the Jurassic period."
Euhelopus zdanskyi Personality: Slow but steady Teodora says: "Euhelopus was slow and steady—this sauropod didn’t rush anywhere but still had a formidable presence in the Jurassic landscape."
Opisthocoelicaudia skarzynskii Personality: Lesser-known but still mighty Teodora says: "A lesser-known sauropod, Opisthocoelicaudia would have been slow but surely able to consume vast amounts of vegetation in its environment."

🦖 Family: Diplodocidae

Diplodocids are known for their long necks and tails, and they were some of the longest dinosaurs to ever exist.

Apatosaurus ajax Personality: Long-necked and powerful Teodora says: "Apatosaurus was an early member of the giant herbivores, with a massive body and long tail."
Dicraeosaurus sattleri Personality: Smaller but still impressive Teodora says: "Dicraeosaurus might not have been as large as some of its relatives, but it still had an impressive body structure and the same long neck."
Diplodocus hallorum Personality: Lengthy and adaptable Teodora says: "Diplodocus was one of the longest sauropods, with a neck that allowed it to reach more vegetation than almost any other dinosaur."
Mamenchisaurus sinocanadorum Personality: Enormous and adaptable Teodora says: "Mamenchisaurus had a towering neck that made it stand out. This giant could reach towering trees and graze with ease."
Supersaurus vivianae Personality: Colossal in scale Teodora says: "Supersaurus was one of the longest dinosaurs ever known. Its immense body and neck made it a true giant among giants."

🦖 Family: Titanosauridae

Titanosaurs are one of the largest and most diverse families of sauropods, with species that reached impressive sizes.

Alamosaurus sanjuanensis Personality: Huge and resilient Teodora says: "Alamosaurus was a giant that roamed North America during the Late Cretaceous period. Its massive body was built for a life of grazing."
Dreadnoughtus schrani Personality: Unstoppable giant Teodora says: "Dreadnoughtus was a true behemoth of the Cretaceous, capable of withstanding almost any challenge in its environment."
Saltasaurus loricatus Personality: Armored giant Teodora says: "Saltasaurus had a unique feature: armor. Its tough exterior helped protect it from predators, making it a formidable force in the Late Cretaceous."

These prehistoric species illustrate the evolution from early herbivores to the towering giants of the Jurassic and Cretaceous periods, paving the way for more diverse forms and helping us understand the natural history of the era.

Ornithischia

Here's a detailed summary of the featured species in the Cerapoda suborder, including their size, diet, time period, and place:

Ornithopods (Bipedal/Quadrupedal Herbivores)

Species	Size	Diet	Time Period	Place Found
Lesothosaurus diagnosticus	~1 m long	Herbivore	Early Jurassic	Africa (Lesotho)
Scutellosaurus lawleri	~1.2 m long	Herbivore	Early Jurassic	North America
Echinodon becklesii	~1 m long	Herbivore	Early Cretaceous	Europe (UK)
Heterodontosaurus tucki	~1.2 m long	Omnivore	Early Jurassic	Africa (South Africa)
Pisanosaurus mertii	~1 m long	Herbivore	Late Triassic	South America
Callovosaurus leedsi	~2.5 m long	Herbivore	Middle Jurassic	Europe (UK)
Dryosaurus elderae	~3 m long	Herbivore	Late Jurassic	North America
Hypsilophodon foxii	~2 m long	Herbivore	Early Cretaceous	Europe (UK)
Nanosaurus agilis	~1 m long	Herbivore	Late Jurassic	North America
Parksosaurus warreni	~2.5 m long	Herbivore	Late Cretaceous	North America
Thescelosaurus garbanii	~4 m long	Herbivore	Late Cretaceous	North America
Camptosaurus dispar	~7 m long	Herbivore	Late Jurassic	North America
Iguanodon bernissartensis	~11.5 m long	Herbivore	Early Cretaceous	Europe (Belgium, UK)
Mantellisaurus atherfieldensis	~7.5 m long	Herbivore	Early Cretaceous	Europe (UK)
Muttaburrasaurus langdoni	~8 m long	Herbivore	Early Cretaceous	Australia
Ouranosaurus nigeriensis	~7 m long	Herbivore	Early Cretaceous	Africa (Niger)
Probactrosaurus gobiensis	~6 m long	Herbivore	Early Cretaceous	Asia (Mongolia, China)
Tenontosaurus dossi	~6.5 m long	Herbivore	Early Cretaceous	North America

Hadrosaurs (Duck-billed Dinosaurs)

Species	Size	Diet	Time Period	Place Found
Bactrosaurus johnsoni	~6 m long	Herbivore	Late Cretaceous	Asia (China)
Corythosaurus casuarius	~9 m long	Herbivore	Late Cretaceous	North America
Edmontosaurus regalis	~12 m long	Herbivore	Late Cretaceous	North America
Hadrosaurus foulkii	~10 m long	Herbivore	Late Cretaceous	North America
Hypacrosaurus stebingeri	~9 m long	Herbivore	Late Cretaceous	North America
Kritosaurus navajovius	~9 m long	Herbivore	Late Cretaceous	North America
Lambeosaurus magnicristatus	~9 m long	Herbivore	Late Cretaceous	North America
Maiasaura peeblesorum	~9 m long	Herbivore	Late Cretaceous	North America
Olorotitan arharensis	~8 m long	Herbivore	Late Cretaceous	Asia (Russia)
Parasaurolophus walkeri	~10 m long	Herbivore	Late Cretaceous	North America
Prosaurolophus maximus	~9 m long	Herbivore	Late Cretaceous	North America
Saurolophus osborni	~10 m long	Herbivore	Late Cretaceous	North America
Shantungosaurus giganteus	~15 m long	Herbivore	Late Cretaceous	Asia (China)
Tsintaosaurus spinorhinus	~8.3 m long	Herbivore	Late Cretaceous	Asia (China)

Ceratopians (Horned Dinosaurs & Pachycephalosaurs)

Species	Size	Diet	Time Period	Place Found
Homalocephale calathocercos	~1.8 m long	Herbivore	Late Cretaceous	Asia (Mongolia)
Pachycephalosaurus wyomingensis	~4.5 m long	Herbivore	Late Cretaceous	North America
Prenocephale prenes	~2.5 m long	Herbivore	Late Cretaceous	Asia (Mongolia)
Stegoceras validum	~2 m long	Herbivore	Late Cretaceous	North America
Psittacosaurus meileyingensis	~2 m long	Herbivore	Early Cretaceous	Asia (China)
Bagaceratops rozhdestvenskyi	~1 m long	Herbivore	Late Cretaceous	Asia (Mongolia)
Leptoceratops gracilis	~2 m long	Herbivore	Late Cretaceous	North America
Microceratus gobiensis	~1 m long	Herbivore	Late Cretaceous	Asia (Mongolia)
Montanoceratops cerorhynchus	~3 m long	Herbivore	Late Cretaceous	North America
Protoceratops hellenikorhinus	~2 m long	Herbivore	Late Cretaceous	Asia (Mongolia)
Anchiceratops ornatus	~6 m long	Herbivore	Late Cretaceous	North America
Arrhinoceratops brachyops	~5 m long	Herbivore	Late Cretaceous	North America
Centrosaurus apertus	~6 m long	Herbivore	Late Cretaceous	North America
Chasmosaurus belli	~4.8 m long	Herbivore	Late Cretaceous	North America
Nasutoceratops titusi	~4.5 m long	Herbivore	Late Cretaceous	North America
Pachyrhinosaurus lakustai	~6 m long	Herbivore	Late Cretaceous	North America
Pentaceratops sternbergii	~6 m long	Herbivore	Late Cretaceous	North America
Styracosaurus ovatus	~5.5 m long	Herbivore	Late Cretaceous	North America
Torosaurus latus	~7.5 m long	Herbivore	Late Cretaceous	North America
Triceratops horridus	~9 m long	Herbivore	Late Cretaceous	North America

This list covers some of the most diverse herbivorous dinosaurs, including hadrosaurs, iguanodonts, ceratopsians, and pachycephalosaurs. Let me know if you'd like more details on any! 😊

Here's the breakdown for the Suborder: Cerapoda under Ornithischia, a group of herbivorous dinosaurs that includes early herbivores and the famous duck-billed dinosaurs (Hadrosauridae). The Cerapoda is further divided into the Ornithopoda and Ceratopia infraorders, with many families contributing to the diversity of plant-eating dinosaurs throughout the Mesozoic.

Suborder: Cerapoda

The Cerapoda are characterized by their herbivorous diet and, in many cases, bipedal locomotion. This suborder is particularly important in the evolution of dinosaurs with specialized adaptations for grazing and a wide range of different body shapes and sizes.

Infraorder: Ornithopoda

Ornithopods were primarily herbivores that were well-adapted for walking on two legs. They included small and medium-sized species that evolved into the massive Hadrosaurids in the Late Cretaceous.

🦖 Family: Fabrosauridae

The Fabrosauridae is a family of early ornithischians that were small, bipedal, and herbivorous. These dinosaurs are important in the evolutionary history of larger ornithopods.

Lesothosaurus diagnosticus Personality: Small, nimble herbivore Teodora says: "Lesothosaurus is one of the earliest examples of bipedal herbivores. Small but quick, it was a vital part of the early Mesozoic ecosystems."
Scutellosaurus lawleri Personality: Agile and armored Teodora says: "Scutellosaurus had small armor plates on its back, making it one of the first dinosaurs to exhibit a unique defense mechanism while being agile and light on its feet."

🦖 Family: Heterodontosauridae

Heterodontosaurs were small, early herbivores that had a mix of teeth types, including sharp teeth for eating plants and possibly for defense or processing food. They represent an early branch of herbivorous dinosaurs with specialized features.

Echinodon becklesii Personality: Small but varied tooth structure Teodora says: "Echinodon is a great example of an early herbivore that had a variety of teeth for eating different types of plants, showing adaptation to various food sources."
Heterodontosaurus tucki Personality: Unique teeth and agility Teodora says: "Heterodontosaurus was one of the most distinctive dinosaurs in the family, with a mix of sharp and flat teeth, giving it the ability to process different types of vegetation."
Pisanosaurus mertii Personality: Small, plant-eating early dinosaur Teodora says: "Pisanosaurus was an early member of the Heterodontosaur family, small but with traits that made it a unique part of early dinosaur evolution."

🦖 Family: Hypsilophodontidae

This family of small herbivores lived during the Late Jurassic and Early Cretaceous periods. They were swift, agile bipedal dinosaurs, often used to traverse varied terrain.

Callovosaurus leedsi Personality: Agile and quick Teodora says: "Callovosaurus was a light, nimble herbivore with quick reflexes that helped it avoid predators while grazing on low-lying plants."
Dryosaurus elderae Personality: Graceful and fleet-footed Teodora says: "Dryosaurus was known for its elegance and speed. It had a graceful body, perfect for quick escapes from predators in the late Jurassic."
Hypsilophodon foxii Personality: Early and agile Teodora says: "Hypsilophodon was a slender, fast herbivore that would have been able to dart across the land quickly, escaping predators with its swiftness."
Nanosaurus agilis Personality: Small and energetic Teodora says: "Nanosaurus was one of the smallest of its kind, but it was full of energy and could run swiftly across the terrain in search of plants to munch on."
Parksosaurus warreni Personality: Quick and social Teodora says: "Parksosaurus likely lived in small herds, using its quick reflexes to protect itself from predators while feeding on low-lying plants."
Thescelosaurus garbanii Personality: Fast and versatile Teodora says: "Thescelosaurus was a quick herbivore, perfect for running through the brush to avoid larger predators while munching on smaller plants."

🦖 Family: Iguanodontidae

Iguanodontidae is an important family that includes the iconic Iguanodon. These dinosaurs were larger, more robust herbivores that had some of the first known uses of specialized teeth for chewing tough vegetation.

Camptosaurus dispar Personality: Early herbivore with a robust build Teodora says: "Camptosaurus was early in the line of iguanodontids, but it already showed signs of being able to chew tougher vegetation with its strong jaw."
Iguanodon bernissartensis Personality: Giant herbivore with thumb spikes Teodora says: "Iguanodon was one of the most recognizable dinosaurs, famous for its thumb spikes used for defense. It also had a large body capable of feeding on large amounts of plant material."
Mantellisaurus atherfieldensis Personality: Smaller but similar to Iguanodon Teodora says: "Mantellisaurus was similar to Iguanodon but smaller, with a build that allowed it to be agile and efficient in feeding on vegetation."
Muttaburrasaurus langdoni Personality: Unique and social Teodora says: "Muttaburrasaurus was a unique member of this family, and its adaptations suggest it might have lived in groups for protection against predators."
Ouranosaurus nigeriensis Personality: Large, defensive herbivore Teodora says: "Ouranosaurus is distinctive for its sail-like structure and its adaptation to life in the deserts of Africa during the Cretaceous."
Probactrosaurus gobiensis Personality: Agile, early herbivore Teodora says: "Probactrosaurus was an early member of the iguanodontids, with an ability to run and find food quickly in the harsh environments it lived in."
Tenontosaurus dossi Personality: Robust and social Teodora says: "Tenontosaurus was a heavily built herbivore that likely lived in herds, using its strength to protect itself from larger predators."

🦖 Family: Hadrosauridae

Hadrosaurids, or duck-billed dinosaurs, were among the most successful herbivores of the Cretaceous period. They were diverse, with many species showing adaptations for complex social behavior and feeding on a variety of plants.

Bactrosaurus johnsoni Personality: Social and intelligent Teodora says: "Bactrosaurus was a duck-billed dinosaur that likely lived in groups. Its intelligence and social structure were essential for surviving in the harsh Cretaceous."
Corythosaurus casuarius Personality: Famous for its crest Teodora says: "Corythosaurus had a striking crest on its head, which may have been used for communication or attracting mates."
Edmontosaurus regalis Personality: Adaptive and social Teodora says: "Edmontosaurus was one of the most famous duck-billed dinosaurs, known for its adaptability and social behavior in groups."
Hadrosaurus foulkii Personality: One of the first named hadrosaurids Teodora says: "Hadrosaurus is an early member of the duck-bill family, and it played a key role in shaping the future of herbivorous dinosaurs."
Hypacrosaurus stebingeri Personality: Large and strong Teodora says: "Hypacrosaurus was one of the largest and most impressive of the duck-billed dinosaurs, known for its strength and speed."
Kritosaurus navajovius Personality: Resilient and long-lived Teodora says: "Kritosaurus had a unique head crest and was a resilient herbivore that adapted well to various environments."
Lambeosaurus magnicristatus Personality: With a magnificent crest Teodora says: "Lambeosaurus had one of the most striking head crests, making it a memorable figure in the dinosaur world."
Maiasaura peeblesorum Personality: Known for its parenting behavior Teodora says: "Maiasaura is famous for its parenting, as it took care of its young in large colonies, a remarkable behavior in dinosaur evolution."
Olorotitan arharensis

Personality: Graceful and peaceful

Teodora says:

"Olorotitan was a graceful dinosaur, known for its large, sweeping crest, which might have been used for communication."

Parasaurolophus walkeri Personality: Distinctive crest for communication Teodora says: "Parasaurolophus is best known for its long crest, which could have been used for both communication and recognition among its kind."
Prosaurolophus maximus Personality: Early member of the family Teodora says: "Prosaurolophus is an early member of the hadrosaur family, exhibiting early adaptations that would later become common in its relatives."
Saurolophus osborni Personality: Large and powerful Teodora says: "Saurolophus had a distinct head crest that may have been used in social or mating displays."
Shantungosaurus giganteus Personality: Gigantic and impressive Teodora says: "Shantungosaurus was one of the largest hadrosaurids, capable of living in large herds and dominating the landscape of Late Cretaceous Asia."
Tsintaosaurus spinorhinus Personality: Unique with a horned crest Teodora says: "Tsintaosaurus had a strange horn on its nose, giving it a distinctive look among the duck-billed dinosaurs."

These species help us understand the evolution of early herbivorous dinosaurs and the diversity of adaptations they used to survive in changing environments.

Here is the breakdown for Infraorder: Ceratopia under Ornithischia. Ceratopsians are a fascinating group of herbivorous dinosaurs, many of which had large frills and horns. The Infraorder Ceratopia is divided into multiple families, each showcasing different adaptations and characteristics.

Infraorder: Ceratopia

Ceratopsians are best known for their large, elaborate frills at the back of their skulls and, in many species, the presence of horns. These adaptations were likely used for display, defense, and social behavior.

Family: Pachycephalosauridae

Pachycephalosaurids are characterized by their thick, domed skulls. Some species may have used these domes for headbutting behavior, either in competition for mates or in social interactions.

Homalocephale calathocercos Personality: Smaller, peaceful but with a thick skull Teodora says: "Homalocephale's skull was thick and domed, but it likely used its head more for display than actual combat."
Pachycephalosaurus wyomingensis Personality: Aggressive and headbutting behavior Teodora says: "Pachycephalosaurus is one of the best-known headbutters in the dinosaur world, with its thick dome potentially used in territorial or mating disputes."
Prenocephale prenes Personality: Smaller, with a rounded dome Teodora says: "Prenocephale was smaller but still had a strong, thick skull that may have been used in social interactions within herds."
Stegoceras validum Personality: Swift, with a domed skull Teodora says: "Stegoceras was a lightweight but with a domed skull for social behaviors or perhaps to protect itself in social conflicts."

Family: Psittacosauridae

Psittacosaurs are one of the earliest ceratopsians, known for their parrot-like beaks. They were smaller dinosaurs that lived during the Early Cretaceous period, and their beaks were well-suited for eating plants.

Psittacosaurus meileyingensis Personality: Early, smaller herbivore Teodora says: "Psittacosaurus is one of the earliest examples of ceratopsians with a parrot-like beak. It used this beak for chewing plants in a unique way."

Family: Protoceratopidae

Protoceratopids were smaller ceratopsians with frills but lacked the large, elaborate horns of later ceratopsians. They played an important role in the evolutionary line leading to the larger ceratopsids.

Bagaceratops rozhdestvenskyi Personality: Small and early hornless ceratopsian Teodora says: "Bagaceratops was a small, early ceratopsian without the large frills or horns that came later in the family, but it still shared important ancestral features."
Leptoceratops gracilis Personality: Light and agile Teodora says: "Leptoceratops was a small and agile ceratopsian, making it well-suited to navigating through dense vegetation in search of food."
Microceratus gobiensis Personality: Tiny but social Teodora says: "Microceratus was a tiny ceratopsian, living in herds that likely offered protection against larger predators."
Montanoceratops cerorhynchus Personality: Small, with unique features Teodora says: "Montanoceratops is an early member of this family, showing distinctive features that make it an important part of ceratopsid evolution."
Protoceratops hellenikorhinus Personality: Early frilled ceratopsian Teodora says: "Protoceratops was a small but important ceratopsian with a frill, marking a significant step in the evolution of larger, more elaborate ceratopsians."

Family: Ceratopidae

Ceratopids are the largest and most famous ceratopsians, including the well-known Triceratops. These dinosaurs had large frills and, in many cases, horns. They were among the largest herbivorous dinosaurs of their time.

Anchiceratops ornatus Personality: Strong, with a large frill Teodora says: "Anchiceratops had a large frill and distinct horns, a clear adaptation for defense or social displays within its species."
Arrhinoceratops brachyops Personality: Unique frill structure Teodora says: "Arrhinoceratops was unique for its shorter frill and smaller horn structure, a member of the ceratopsid family with a more primitive setup."
Centrosaurus apertus Personality: Defensive, with a prominent frill Teodora says: "Centrosaurus had a distinctive frill with horns and was a defensive ceratopsian, likely using its features to ward off predators."
Chasmosaurus belli Personality: Large, with a wide frill Teodora says: "Chasmosaurus had a massive frill, which may have been used for social purposes or to display its dominance in groups."
Nasutoceratops titusi Personality: Long, large nose and frill Teodora says: "Nasutoceratops had a large, elongated nose and frill, suggesting it may have had unique communication methods within its species."
Pachyrhinosaurus lakustai Personality: Thick and robust Teodora says: "Pachyrhinosaurus is known for its thick, broad frill and massive build, suggesting it could have defended itself against larger predators."
Pentaceratops sternbergii Personality: Massive with five horns Teodora says: "Pentaceratops is known for its five horns, an unusual and striking feature that made it stand out among other ceratopsids."
Styracosaurus ovatus Personality: Well-armed with spikes Teodora says: "Styracosaurus had a frill adorned with large, sharp spikes, offering both defense and social display advantages."
Torosaurus latus Personality: Large frill with holes Teodora says: "Torosaurus had an exceptionally large frill, with distinctive holes in the frill, possibly used for communication or to display health and vitality."
Triceratops horridus Personality: Iconic, with three horns Teodora says: "Triceratops is one of the most famous dinosaurs, known for its three massive horns and large frill. It was a powerful herbivore and a key part of the Late Cretaceous ecosystem."

These ceratopsians offer insight into the diverse adaptations within the Ceratopia infraorder, with different types of frills and horns used for various social, defensive, and mating purposes. Many of these dinosaurs contributed to the rich biodiversity of the Cretaceous period.

Here’s a detailed Thyreophora (Armored Dinosaurs) species list, including size, diet, time period, and place:

Stegosauria (Plated Dinosaurs)

Species	Size	Diet	Time Period	Place Found
Huayangosaurus taibaii	~4.5 m long	Herbivore	Middle Jurassic	Asia (China)
Tuojiangosaurus multispinus	~7 m long	Herbivore	Late Jurassic	Asia (China)
Kentrosaurus aethiopicus	~5.5 m long	Herbivore	Late Jurassic	Africa (Tanzania)
Stegosaurus stenops	~7-10 m long	Herbivore	Late Jurassic	North America
Wuerhosaurus ordosensis	~7 m long	Herbivore	Early Cretaceous	Asia (China)

Ankylosauria (Armored Dinosaurs)

Species	Size	Diet	Time Period	Place Found
Scelidosaurus harrisonii	~4 m long	Herbivore	Early Jurassic	Europe (UK)
Hylaeosaurus armatus	~4 m long	Herbivore	Early Cretaceous	Europe (UK)
Nodosaurus textilis	~6 m long	Herbivore	Late Cretaceous	North America
Panoplosaurus mirus	~7 m long	Herbivore	Late Cretaceous	North America
Polacanthus foxii	~5 m long	Herbivore	Early Cretaceous	Europe (UK)
Sauropelta edwardsorum	~6 m long	Herbivore	Early Cretaceous	North America
Silvisaurus condrayi	~4 m long	Herbivore	Late Cretaceous	North America
Struthiosaurus transylvanicus	~2.5 m long	Herbivore	Late Cretaceous	Europe (Romania)

Ankylosauridae (Club-Tailed Ankylosaurs)

Species	Size	Diet	Time Period	Place Found
Ankylosaurus magniventris	~8-11 m long	Herbivore	Late Cretaceous	North America
Euoplocephalus tutus	~6-7 m long	Herbivore	Late Cretaceous	North America
Saichania chulsanensis	~5-6 m long	Herbivore	Late Cretaceous	Asia (Mongolia)
Talarurus plicatospineus	~5 m long	Herbivore	Late Cretaceous	Asia (Mongolia)

This list covers the major stegosaurs and ankylosaurs, the two heavily armored dinosaur groups! Let me know if you want more details on any specific one! 😊

Here is the breakdown for Ornithischia: Thyreophora, which includes some of the most iconic armored dinosaurs. The Thyreophora group is characterized by its members’ heavy, armor-like coverings, spikes, and, in some cases, clubbed tails. These adaptations were primarily for defense against predators.

Suborder: Thyreophora

Thyreophora is divided into two main infraorders: Stegosauria and Ankylosauria. Members of this suborder were primarily herbivores, utilizing their body armor for protection.

Infraorder: Stegosauria

Stegosaurs are well-known for their large plates along their backs and spiked tails, which likely served as defense against predators.

Family: Huayangosauridae

Huayangosaurids were some of the earlier, smaller stegosaurs, living in the Middle Jurassic period. They had less-developed armor and plates compared to later stegosaurs.

Huayangosaurus taibaii Personality: Small but well-armored Teodora says: "Huayangosaurus may have been smaller compared to its cousins, but its armor was still an effective defense against predators of its time."
Tuojiangosaurus multispinus Personality: Large, with multiple spines Teodora says: "Tuojiangosaurus had an impressive array of spines on its body, making it an early example of how stegosaurs evolved their defensive structures."

Family: Stegosauridae

Stegosaurids are the most iconic group of stegosaurs, known for their large plates and spiked tails. These dinosaurs lived during the Late Jurassic period and were heavily built for protection.

Kentrosaurus aethiopicus Personality: Smaller, with large spikes Teodora says: "Kentrosaurus had a spiked tail and back, using its armor as a defense against predators like Allosaurus, which roamed its environment."
Stegosaurus stenops Personality: Classic, with distinctive plates Teodora says: "Stegosaurus is the quintessential stegosaur, with large, distinctive plates along its back. These plates may have been used for thermoregulation or display as much as for defense."
Wuerhosaurus ordosensis Personality: Less known but still armored Teodora says: "Wuerhosaurus shared many traits with Stegosaurus, such as its distinctive back plates and tail spikes, but it lived in a different ecosystem with its own set of challenges."

Infraorder: Ankylosauria

Ankylosaurs are perhaps the most well-known for their body armor and clubbed tails. They lived during the Late Cretaceous period and had an incredibly tough build for defense.

Family: Scelidosauridae

Scelidosaurids are among the earliest ankylosaurs, showing the early adaptations of body armor and low-slung builds.

Scelidosaurus harrisonii Personality: Small, early armored dinosaur Teodora says: "Scelidosaurus was an early member of the ankylosaur lineage, showing early signs of the distinctive armor and defensive features that would define the later ankylosaurs."

Family: Nodosauridae

Nodosaurs were heavily armored herbivores with large bony plates and spines. Unlike ankylosaurs, nodosaurs did not have the large clubbed tails but still had impressive defensive features.

Hylaeosaurus armatus Personality: Armored, swift Teodora says: "Hylaeosaurus was an armored herbivore with a swift build, which allowed it to move quickly, despite its heavy armor."
Nodosaurus textilis Personality: Armored and low to the ground Teodora says: "Nodosaurus had a low, heavily-armored body, helping it stay protected from predators by keeping close to the ground and blending into its surroundings."
Panoplosaurus mirus Personality: Strong and sturdy Teodora says: "Panoplosaurus was heavily armored, with a tough build designed to protect it from large predators that lurked in its environment."
Polacanthus foxii Personality: Spiny, with robust armor Teodora says: "Polacanthus was a heavily armored dinosaur with large spines extending from its body, making it a formidable opponent for any would-be predator."
Sauropelta edwardsorum Personality: Strong and heavily plated Teodora says: "Sauropelta had large bony plates covering its body, along with spines for additional defense, making it a well-protected herbivore."
Silvisaurus condrayi Personality: Small but well-defended Teodora says: "Silvisaurus was a small but well-armored dinosaur, offering us early insight into the evolutionary path that led to the larger, more famous ankylosaurs."
Struthiosaurus transylvanicus Personality: Agile with armor Teodora says: "Struthiosaurus was an armored dinosaur that likely used its speed and agility to escape predators, though its armor made it difficult to harm."

Family: Ankylosauridae

Ankylosaurids are the most well-known ankylosaurs, characterized by their tough body armor and clubbed tails. These dinosaurs were heavily protected and were one of the most formidable herbivores of the Cretaceous period.

Ankylosaurus magniventris Personality: Iconic armored dinosaur Teodora says: "Ankylosaurus is the iconic armored dinosaur with its massive clubbed tail, designed to defend itself from even the most powerful predators, such as T. rex."
Euoplocephalus tutus Personality: Heavy armor and clubbed tail Teodora says: "Euoplocephalus had an incredibly thick body armor and a clubbed tail that could deliver a crushing blow to any would-be attacker."
Saichania chulsanensis Personality: Fully armored with a thick body Teodora says: "Saichania was a heavily armored dinosaur with a robust body, using its defenses to protect itself in the harsh Cretaceous environment."
Talarurus plicatospineus Personality: Spiny, clubbed tail Teodora says: "Talarurus was another member of the ankylosaur family, with a spiny body and a clubbed tail, which could have served as both a weapon and a deterrent to predators."

These Thyreophorans are some of the most well-armored and unique dinosaurs. Their protective features evolved to defend them against the numerous predators of their time, making them one of the most well-protected groups in the dinosaur kingdom.

Synonym

Here’s a detailed summary of the featured species from Saurischia, Ornithischia, and Pterosaurs, including their size, diet, time period, and place:

Saurischia (Lizard-hipped Dinosaurs)

Species	Size	Diet	Time Period	Place Found
Nanotyrannus lancensis	~6 m long	Carnivore	Late Cretaceous	North America
Smurfette	~1.5 m (hypothetical)	Omnivore	Cretaceous	Hypothetical Species
Ammosaurus major	~4 m long	Carnivore	Late Triassic	North America
Seismosaurus hallorum	~40 m long	Herbivore	Late Jurassic	North America
Ultrasauros macintoshi	~30 m long	Herbivore	Late Jurassic	North America

Ornithischia (Bird-hipped Dinosaurs)

Species	Size	Diet	Time Period	Place Found
Drinker nisti	~2 m long	Herbivore	Late Jurassic	North America
Anatosaurus annectens	~12 m long	Herbivore	Late Cretaceous	North America
Dracorex hogwartsia	~4.5 m long	Herbivore	Late Cretaceous	North America
Stygimoloch spinifer	~3 m long	Herbivore	Late Cretaceous	North America

Pterosaurs (Flying Reptiles)

Species	Size	Diet	Time Period	Place Found
Geosternbergia sternbergi	~5 m wingspan	Carnivore	Late Jurassic	North America

This list features a mix of carnivorous dinosaurs (Saurischia), herbivorous dinosaurs (Ornithischia), and pterosaurs. Let me know if you want to dive deeper into any of them! 😊

Flying Reptiles

Here are the estimated sizes for the listed pterosaur species:

Suborder: Rhamphorhynchoidea

Family: Dimorphodontidae

Dimorphodon macronyx – Wingspan: ~1.4 meters (4.6 feet), Body length: ~1 meter (3.3 feet)

Family: Eudimorphodontidae

Eudimorphodon ranzii – Wingspan: ~1 meter (3.3 feet), Body length: ~0.7 meters (2.3 feet)

Family: Rhamphorhynchidae

Anurognathus ammoni – Wingspan: ~0.5 meters (1.6 feet), Body length: ~0.2 meters (8 inches)
Rhamphorhynchus etchesi – Wingspan: ~1.8 meters (5.9 feet), Body length: ~1 meter (3.3 feet)
Scaphognathus crassirostris – Wingspan: ~1 meter (3.3 feet), Body length: ~0.8 meters (2.6 feet)
Sordes pilosus – Wingspan: ~0.6 meters (2 feet), Body length: ~0.4 meters (1.3 feet)

Suborder: Pterodactyloidea

Family: Dsungaripteridae

Dsungaripterus weii – Wingspan: ~3.5 meters (11.5 feet), Body length: ~1.5 meters (4.9 feet)

Family: Pterodaustriidae

Arthurdactylus conandoylei – Wingspan: ~4.6 meters (15 feet), Body length: ~2 meters (6.6 feet)
Pterodaustro guinazui – Wingspan: ~2.5–3 meters (8.2–9.8 feet), Body length: ~1.2 meters (3.9 feet)

Family: Ornithocheiridae

Pteranodon sternbergi – Wingspan: ~7 meters (23 feet), Body length: ~3.5 meters (11.5 feet)
Quetzalcoatlus lawsoni – Wingspan: ~10–17 meters (33–57.6 feet), Body length: ~5.89 meters (19.3 feet)

Would you like additional details or comparisons with other flying reptiles?

Carnivorous Dinosaurs

Here are the estimated sizes for the listed theropod species:

Suborder: Theropoda (Carnivorous Dinosaurs)

Infraorder: Coelurosauria

Family: Podokesauridae

Coelophysis bauri – Length: ~3 meters (10 feet), Height: ~1 meter (3.3 feet), Weight: ~20 kg (44 lbs)
Procompsognathus triassicus – Length: ~1 meter (3.3 feet), Height: ~0.4 meters (1.3 feet), Weight: ~1 kg (2.2 lbs)
Saltopus elginensis – Length: ~0.6 meters (2 feet), Height: ~0.25 meters (10 inches), Weight: ~1 kg (2.2 lbs)

Family: Coeluridae

Coelurus fragilis – Length: ~2.5 meters (8 feet), Height: ~1 meter (3.3 feet), Weight: ~20 kg (44 lbs)
Moros intrepidus – Length: ~3 meters (10 feet), Height: ~1.2 meters (4 feet), Weight: ~78 kg (172 lbs)

Family: Compsognathidae

Compsognathus longipes – Length: ~1.4 meters (4.6 feet), Height: ~0.4 meters (1.3 feet), Weight: ~3 kg (6.6 lbs)

Family: Ornithomimidae

Dromiceiomimus samueli – Length: ~3.5 meters (11.5 feet), Height: ~1.5 meters (5 feet), Weight: ~100 kg (220 lbs)
Gallimimus bullatus – Length: ~6 meters (20 feet), Height: ~2 meters (6.6 feet), Weight: ~440 kg (970 lbs)
Ornithomimus velox – Length: ~3.5 meters (11.5 feet), Height: ~1.5 meters (5 feet), Weight: ~100 kg (220 lbs)
Struthiomimus altus – Length: ~4.3 meters (14 feet), Height: ~1.8 meters (6 feet), Weight: ~150 kg (330 lbs)

Family: Deinocheiridae

Deinocheirus mirificus – Length: ~11 meters (36 feet), Height: ~3.6 meters (12 feet), Weight: ~6,000 kg (13,200 lbs)

Family: Oviraptoridae

Oviraptor philoceratops – Length: ~1.5 meters (5 feet), Height: ~0.8 meters (2.6 feet), Weight: ~15 kg (33 lbs)

Family: Therizinosauridae

Therizinosaurus cheloniformis – Length: ~10 meters (33 feet), Height: ~5 meters (16 feet), Weight: ~5,000 kg (11,000 lbs)

Infraorder: Coelurosauria, Deinonychosauria

Family: Saurornithoididae

Stenonychosaurus inequalis – Length: ~2.5 meters (8 feet), Height: ~1 meter (3.3 feet), Weight: ~50 kg (110 lbs)
Troodon formosus – Length: ~2.4 meters (7.9 feet), Height: ~1 meter (3.3 feet), Weight: ~50 kg (110 lbs)

Family: Dromaeosauridae

Bambiraptor feinbergi – Length: ~1 meter (3.3 feet), Height: ~0.5 meters (1.6 feet), Weight: ~2 kg (4.4 lbs)
Deinonychus antirrhopus – Length: ~3.4 meters (11 feet), Height: ~1.2 meters (4 feet), Weight: ~100 kg (220 lbs)
Dromaeosaurus albertensis – Length: ~2 meters (6.6 feet), Height: ~1 meter (3.3 feet), Weight: ~15 kg (33 lbs)
Saurornitholestes sullivani – Length: ~2 meters (6.6 feet), Height: ~0.8 meters (2.6 feet), Weight: ~15 kg (33 lbs)
Velociraptor osmolskae – Length: ~2.1 meters (7 feet), Height: ~0.5 meters (1.6 feet), Weight: ~15 kg (33 lbs)

Order: Archaeopterygiformes

Archaeopteryx albersdoerferi – Wingspan: ~0.5 meters (1.6 feet), Body length: ~0.5 meters (1.6 feet), Weight: ~1 kg (2.2 lbs)

Infraorder: Ceratosauria

Family: Ceratosauridae

Ceratosaurus nasicornis – Length: ~6 meters (20 feet), Height: ~2 meters (6.6 feet), Weight: ~980 kg (2,160 lbs)
Dilophosaurus wetherilli – Length: ~7 meters (23 feet), Height: ~2.5 meters (8.2 feet), Weight: ~400 kg (880 lbs)
Elaphrosaurus bambergi – Length: ~6.2 meters (20.3 feet), Height: ~1.5 meters (5 feet), Weight: ~210 kg (460 lbs)

Infraorder: Carnosauria

Family: Megalosauridae

Eustreptospondylus oxoniensis – Length: ~5 meters (16.4 feet), Height: ~1.5 meters (5 feet), Weight: ~500 kg (1,100 lbs)
Giganotosaurus carolinii – Length: ~15.50 meters (50.9 feet), Height: ~5.34 meters (17.5 feet), Weight: ~8,000 kg (17,600 lbs)
Poekilopleuron bucklandii – Length: ~9 meters (30 feet), Height: ~3 meters (10 feet), Weight: ~1,500 kg (3,300 lbs)
Proceratosaurus bradleyi – Length: ~3 meters (10 feet), Height: ~1 meter (3.3 feet), Weight: ~100 kg (220 lbs)

Family: Allosauridae

Allosaurus europaeus – Length: ~12.1 meters (39.4 feet), Height: ~4.02 meters (13.2 feet), Weight: ~1,500 kg (3,300 lbs)
Yangchuanosaurus zigongensis – Length: ~10 meters (33 feet), Height: ~3.5 meters (11.5 feet), Weight: ~3,000 kg (6,600 lbs)

Family: Spinosauridae

Acrocanthosaurus atokensis – Length: ~11 meters (36 feet), Height: ~4 meters (13 feet), Weight: ~6,000 kg (13,200 lbs)
Spinosaurus aegyptiacus – Length: ~16 meters (52 feet), Height: ~5.5 meters (18 feet), Weight: ~7,000 kg (15,400 lbs)

Family: Tyrannosauridae

Albertosaurus sarcophagus – Length: ~9 meters (30 feet), Height: ~3.5 meters (11.5 feet), Weight: ~2,000 kg (4,400 lbs)
Alioramus altai – Length: ~5 meters (16.4 feet), Height: ~2 meters (6.6 feet), Weight: ~500 kg (1,100 lbs)
Daspletosaurus horneri – Length: ~9 meters (30 feet), Height: ~3 meters (10 feet), Weight: ~3,800 kg (8,400 lbs)
Tarbosaurus bataar – Length: ~12 meters (39 feet), Height: ~3.5 meters (11.5 feet), Weight: ~5,000 kg (11,000 lbs)
Tyrannosaurus Rex – Length: ~12–14.50 meters (40–47.6 feet), Height: ~6 meters (19.7 feet), Weight: ~8,000–9,000 kg (17,600–19,800 lbs)

Would you like further details on any of these?

Early Herbivorous Dinosaurs and Long-necked Browsing Dinosaurs

Here are the estimated sizes for the listed species of Sauropodomorpha:

Suborder: Sauropodomorpha

Infraorder: Prosauropoda

Family: Herrerasauridae

Herrerasaurus ischigualastensis – Length: ~6 meters (20 feet), Height: ~1.5 meters (5 feet), Weight: ~250 kg (550 lbs)
Sanjuansaurus gordilloi – Length: ~3 meters (10 feet), Height: ~1 meter (3.3 feet), Weight: ~70 kg (154 lbs)
Smurfette (La Schtroumpfette) – [User envisions Smurfette evolving from a Prosauropoda, but specific dimensions are unknown]
Staurikosaurus pricei – Length: ~2.25 meters (7.4 feet), Height: ~0.75 meters (2.5 feet), Weight: ~30 kg (66 lbs)

Family: Anchisauridae

Anchisaurus polyzelus – Length: ~2.4 meters (8 feet), Height: ~1 meter (3.3 feet), Weight: ~30 kg (66 lbs)
Efraasia minor – Length: ~6 meters (20 feet), Height: ~2 meters (6.6 feet), Weight: ~500 kg (1,100 lbs)
Thecodontosaurus antiquus – Length: ~2 meters (6.6 feet), Height: ~1 meter (3.3 feet), Weight: ~25 kg (55 lbs)

Family: Plateosauridae

Massospondylus kaalae – Length: ~4 meters (13 feet), Height: ~1.5 meters (5 feet), Weight: ~200 kg (440 lbs)
Mussaurus patagonicus – Length: ~6 meters (20 feet), Height: ~2 meters (6.6 feet), Weight: ~1,000 kg (2,200 lbs)
Plateosaurus gracilis – Length: ~6 meters (20 feet), Height: ~2 meters (6.6 feet), Weight: ~600 kg (1,300 lbs)

Family: Melanorosauridae

Riojasaurus incertus – Length: ~10 meters (33 feet), Height: ~3 meters (10 feet), Weight: ~3,000 kg (6,600 lbs)

Infraorder: Sauropoda

Family: Cetiosauridae

Barapasaurus tagorei – Length: ~14 meters (46 feet), Height: ~4 meters (13 feet), Weight: ~8,000 kg (17,600 lbs)
Cetiosaurus oxoniensis – Length: ~15 meters (49 feet), Height: ~4.5 meters (15 feet), Weight: ~10,000 kg (22,000 lbs)

Family: Brachiosauridae

Brachiosaurus altithorax – Length: ~25 meters (82 feet), Height: ~16.1 meters (52.8 feet), Weight: ~56,000 kg (123,000 lbs)
Sauroposeidon proteles – Length: ~34 meters (112 feet), Height: ~18 meters (59 feet), Weight: ~60,000 kg (132,000 lbs)

Family: Camarasauridae

Camarasaurus supremus – Length: ~23 meters (75 feet), Height: ~6 meters (20 feet), Weight: ~47,000 kg (103,600 lbs)
Euhelopus zdanskyi – Length: ~15 meters (49 feet), Height: ~5 meters (16.4 feet), Weight: ~15,000 kg (33,000 lbs)
Opisthocoelicaudia skarzynskii – Length: ~12 meters (39 feet), Height: ~4 meters (13 feet), Weight: ~10,000 kg (22,000 lbs)

Family: Diplodocidae

Apatosaurus ajax – Length: ~27 meters (88.6 feet), Height: ~6.72 meters (22 feet), Weight: ~20,000 kg (44,000 lbs)
Dicraeosaurus sattleri – Length: ~12 meters (39 feet), Height: ~3 meters (10 feet), Weight: ~4,000 kg (8,800 lbs)
Diplodocus hallorum – Length: ~33 meters (108 feet), Height: ~5.95 meters (19.5 feet), Weight: ~25,000 kg (55,000 lbs)
Mamenchisaurus sinocanadorum – Length: ~35 meters (115 feet), Height: ~17.85 meters (58.6 feet), Weight: ~50,000 kg (110,000 lbs)
Supersaurus vivianae – Length: ~39–42 meters (128–138 feet), Height: ~21.5 meters (70.5 feet), Weight: ~50,000 kg (110,000 lbs)

Family: Titanosauridae

Alamosaurus sanjuanensis – Length: ~30 meters (98 feet), Height: ~18.7 meters (61.4 feet), Weight: ~30,000 kg (66,000 lbs)
Dreadnoughtus schrani – Length: ~26 meters (85 feet), Height: ~16 meters (52.5 feet), Weight: ~65,000 kg (143,000 lbs)
Saltasaurus loricatus – Length: ~12 meters (39 feet), Height: ~4 meters (13 feet), Weight: ~7,000 kg (15,400 lbs)

Would you like additional details or comparisons on any species?

Ornithopods and Horned Dinosaurs

Here is the estimated size information for the species of Cerapoda:

Suborder: Cerapoda

Infraorder: Ornithopoda

Family: Fabrosauridae

Lesothosaurus diagnosticus – Length: ~1.2 meters (4 feet), Height: ~0.3 meters (1 foot), Weight: ~1–2 kg (2–4 lbs)
Scutellosaurus lawleri – Length: ~2 meters (6.6 feet), Height: ~0.6 meters (2 feet), Weight: ~10 kg (22 lbs)

Family: Heterodontosauridae

Echinodon becklesii – Length: ~1 meter (3.3 feet), Height: ~0.3 meters (1 foot), Weight: ~1 kg (2.2 lbs)
Heterodontosaurus tucki – Length: ~1.5 meters (5 feet), Height: ~0.5 meters (1.6 feet), Weight: ~3–4 kg (6.6–8.8 lbs)
Pisanosaurus mertii – Length: ~1 meter (3.3 feet), Height: ~0.3 meters (1 foot), Weight: ~2 kg (4.4 lbs)

Family: Hypsilophodontidae

Callovosaurus leedsi – Length: ~3 meters (9.8 feet), Height: ~1 meter (3.3 feet), Weight: ~25 kg (55 lbs)
Dryosaurus elderae – Length: ~3 meters (10 feet), Height: ~1 meter (3.3 feet), Weight: ~30 kg (66 lbs)
Hypsilophodon foxii – Length: ~2 meters (6.6 feet), Height: ~0.7 meters (2.3 feet), Weight: ~10–15 kg (22–33 lbs)
Nanosaurus agilis – Length: ~1 meter (3.3 feet), Height: ~0.3 meters (1 foot), Weight: ~1–2 kg (2.2–4.4 lbs)
Parksosaurus warreni – Length: ~2 meters (6.6 feet), Height: ~0.7 meters (2.3 feet), Weight: ~10 kg (22 lbs)
Thescelosaurus garbanii – Length: ~2 meters (6.6 feet), Height: ~0.7 meters (2.3 feet), Weight: ~15 kg (33 lbs)

Family: Iguanodontidae

Camptosaurus dispar – Length: ~5 meters (16.4 feet), Height: ~2 meters (6.6 feet), Weight: ~600 kg (1,300 lbs)
Iguanodon bernissartensis – Length: ~11.96 meters (39.2 feet), Height: ~4.26 meters (14 feet), Weight: ~3,500–5,000 kg (7,700–11,000 lbs)
Mantellisaurus atherfieldensis – Length: ~5 meters (16.4 feet), Height: ~2 meters (6.6 feet), Weight: ~500–600 kg (1,100–1,300 lbs)
Muttaburrasaurus langdoni – Length: ~7 meters (23 feet), Height: ~2 meters (6.6 feet), Weight: ~500–1,000 kg (1,100–2,200 lbs)
Ouranosaurus nigeriensis – Length: ~7 meters (23 feet), Height: ~2.5 meters (8.2 feet), Weight: ~1,000–2,000 kg (2,200–4,400 lbs)
Probactrosaurus gobiensis – Length: ~4 meters (13 feet), Height: ~1.5 meters (5 feet), Weight: ~300 kg (660 lbs)
Tenontosaurus dossi – Length: ~5 meters (16.4 feet), Height: ~1.5 meters (5 feet), Weight: ~500 kg (1,100 lbs)

Family: Hadrosauridae

Bactrosaurus johnsoni – Length: ~7 meters (23 feet), Height: ~2 meters (6.6 feet), Weight: ~1,000–2,000 kg (2,200–4,400 lbs)
Corythosaurus casuarius – Length: ~9 meters (30 feet), Height: ~3 meters (10 feet), Weight: ~4,000 kg (8,800 lbs)
Edmontosaurus regalis – Length: ~12 meters (39 feet), Height: ~4 meters (13 feet), Weight: ~3,500–4,000 kg (7,700–8,800 lbs)
Hadrosaurus foulkii – Length: ~9 meters (30 feet), Height: ~3 meters (10 feet), Weight: ~2,500–3,000 kg (5,500–6,600 lbs)
Hypacrosaurus stebingeri – Length: ~9 meters (30 feet), Height: ~3 meters (10 feet), Weight: ~2,000 kg (4,400 lbs)
Kritosaurus navajovius – Length: ~9 meters (30 feet), Height: ~3 meters (10 feet), Weight: ~3,000 kg (6,600 lbs)
Lambeosaurus magnicristatus – Length: ~9 meters (30 feet), Height: ~3 meters (10 feet), Weight: ~4,000 kg (8,800 lbs)
Maiasaura peeblesorum – Length: ~9 meters (30 feet), Height: ~3 meters (10 feet), Weight: ~2,500–3,000 kg (5,500–6,600 lbs)
Olorotitan arharensis – Length: ~8 meters (26 feet), Height: ~2.5 meters (8.2 feet), Weight: ~1,500 kg (3,300 lbs)
Parasaurolophus walkeri – Length: ~10 meters (33 feet), Height: ~3.5 meters (11.5 feet), Weight: ~2,500 kg (5,500 lbs)
Prosaurolophus maximus – Length: ~9 meters (30 feet), Height: ~3 meters (10 feet), Weight: ~2,000 kg (4,400 lbs)
Saurolophus osborni – Length: ~10 meters (33 feet), Height: ~3 meters (10 feet), Weight: ~3,000 kg (6,600 lbs)
Shantungosaurus giganteus – Length: ~15 meters (49 feet), Height: ~5 meters (16.4 feet), Weight: ~8,000–10,000 kg (17,600–22,000 lbs)
Tsintaosaurus spinorhinus – Length: ~8 meters (26 feet), Height: ~2.5 meters (8.2 feet), Weight: ~1,000–2,000 kg (2,200–4,400 lbs)

Infraorder: Ceratopia

Family: Pachycephalosauridae

Homalocephale calathocercos – Length: ~2 meters (6.6 feet), Height: ~0.6 meters (2 feet), Weight: ~50–70 kg (110–154 lbs)
Pachycephalosaurus wyomingensis – Length: ~5 meters (16.4 feet), Height: ~1.5 meters (5 feet), Weight: ~450–500 kg (990–1,100 lbs)
Prenocephale prenes – Length: ~4 meters (13 feet), Height: ~1 meter (3.3 feet), Weight: ~100 kg (220 lbs)
Stegoceras validum – Length: ~3 meters (10 feet), Height: ~1 meter (3.3 feet), Weight: ~100–150 kg (220–330 lbs)

Family: Psittacosauridae

Psittacosaurus meileyingensis – Length: ~2 meters (6.6 feet), Height: ~0.5 meters (1.6 feet), Weight: ~2–3 kg (4.4–6.6 lbs)

Family: Protoceratopidae

Bagaceratops rozhdestvenskyi – Length: ~2 meters (6.6 feet), Height: ~0.6 meters (2 feet), Weight: ~20–30 kg (44–66 lbs)
Leptoceratops gracilis – Length: ~2 meters (6.6 feet), Height: ~0.6 meters (2 feet), Weight: ~30 kg (66 lbs)
Microceratus gobiensis – Length: ~1 meter (3.3 feet), Height: ~0.3 meters (1 foot), Weight: ~1–2 kg (2.2–4.4 lbs)
Montanoceratops cerorhynchus – Length: ~2 meters (6.6 feet), Height: ~0.6 meters (2 feet), Weight: ~30 kg (66 lbs)
Protoceratops hellenikorhinus – Length: ~2 meters (6.6 feet), Height: ~0.6 meters (2 feet), Weight: ~20–30 kg (44–66 lbs)

Family: Ceratopidae

Anchiceratops ornatus – Length: ~4 meters (13 feet), Height: ~1.5 meters (5 feet), Weight: ~1,000 kg (2,200 lbs)
Arrhinoceratops brachyops – Length: ~4 meters (13 feet), Height: ~1.5 meters (5 feet), Weight: ~1,000 kg (2,200 lbs)
Centrosaurus apertus – Length: ~6 meters (20 feet), Height: ~2 meters (6.6 feet), Weight: ~2,000 kg (4,400 lbs)
Chasmosaurus belli – Length: ~5–6 meters (16–20 feet), Height: ~2 meters (6.6 feet), Weight: ~2,000–2,500 kg (4,400–5,500 lbs)
Nasutoceratops titusi – Length: ~5 meters (16.4 feet), Height: ~2 meters (6.6 feet), Weight: ~1,000–1,500 kg (2,200–3,300 lbs)
Pachyrhinosaurus lakustai – Length: ~8.02 meters (26.3 feet), Height: ~4.10 meters (13.5 feet), Weight: ~2,000 kg (4,400 lbs)
Pentaceratops sternbergii – Length: ~7 meters (23 feet), Height: ~5.2 meters (17.1 feet), Weight: ~3,000–4,000 kg (6,600–8,800 lbs)
Styracosaurus ovatus – Length: ~5 meters (16.4 feet), Height: ~2 meters (6.6 feet), Weight: ~2,000 kg (4,400 lbs)
Torosaurus latus – Length: ~7 meters (23 feet), Height: ~3 meters (10 feet), Weight: ~5,000 kg (11,000 lbs)
Triceratops horridus – Length: ~8 meters (26 feet), Height: ~3 meters (10 feet), Weight: ~6,000–12,000 kg (13,200–26,400 lbs)

Let me know if you'd like further information or comparisons!

Armored Dinosaurs

Here are the estimated sizes for the species in Thyreophora:

Suborder: Thyreophora

Infraorder: Stegosauria

Family: Huayangosauridae

Huayangosaurus taibaii – Length: ~4 meters (13 feet), Height: ~1.5 meters (5 feet), Weight: ~1,000–1,500 kg (2,200–3,300 lbs)
Tuojiangosaurus multispinus – Length: ~7 meters (23 feet), Height: ~2 meters (6.6 feet), Weight: ~2,000–3,000 kg (4,400–6,600 lbs)

Family: Stegosauridae

Kentrosaurus aethiopicus – Length: ~4 meters (13 feet), Height: ~1.5 meters (5 feet), Weight: ~500–600 kg (1,100–1,300 lbs)
Stegosaurus stenops – Length: ~9 meters (30 feet), Height: ~4 meters (13 feet), Weight: ~2,000–3,000 kg (4,400–6,600 lbs)
Wuerhosaurus ordosensis – Length: ~6 meters (20 feet), Height: ~2 meters (6.6 feet), Weight: ~1,000–1,500 kg (2,200–3,300 lbs)

Infraorder: Ankylosauria

Family: Scelidosauridae

Scelidosaurus harrisonii – Length: ~4 meters (13 feet), Height: ~1 meter (3.3 feet), Weight: ~500–600 kg (1,100–1,300 lbs)

Family: Nodosauridae

Hylaeosaurus armatus – Length: ~4 meters (13 feet), Height: ~1.5 meters (5 feet), Weight: ~1,000–1,500 kg (2,200–3,300 lbs)
Nodosaurus textilis – Length: ~4 meters (13 feet), Height: ~1.5 meters (5 feet), Weight: ~1,500–2,000 kg (3,300–4,400 lbs)
Panoplosaurus mirus – Length: ~5 meters (16.4 feet), Height: ~1.5 meters (5 feet), Weight: ~2,000–3,000 kg (4,400–6,600 lbs)
Polacanthus foxii – Length: ~5 meters (16.4 feet), Height: ~1.5 meters (5 feet), Weight: ~2,000–3,000 kg (4,400–6,600 lbs)
Sauropelta edwardsorum – Length: ~5 meters (16.4 feet), Height: ~1 meter (3.3 feet), Weight: ~1,000–1,500 kg (2,200–3,300 lbs)
Silvisaurus condrayi – Length: ~4 meters (13 feet), Height: ~1.5 meters (5 feet), Weight: ~1,000 kg (2,200 lbs)
Struthiosaurus transylvanicus – Length: ~3 meters (9.8 feet), Height: ~1 meter (3.3 feet), Weight: ~300–400 kg (660–880 lbs)

Family: Ankylosauridae

Ankylosaurus magniventris – Length: ~9.6 meters (31.5 feet), Height: ~3.6 meters (11.8 feet), Weight: ~6,000–8,000 kg (13,200–17,600 lbs)
Euoplocephalus tutus – Length: ~6 meters (20 feet), Height: ~1.5 meters (5 feet), Weight: ~3,000–4,000 kg (6,600–8,800 lbs)
Saichania chulsanensis – Length: ~6 meters (20 feet), Height: ~2 meters (6.6 feet), Weight: ~2,500–3,000 kg (5,500–6,600 lbs)
Talarurus plicatospineus – Length: ~5 meters (16.4 feet), Height: ~1.5 meters (5 feet), Weight: ~2,000–3,000 kg (4,400–6,600 lbs)

Flying Reptiles

Clade	Family	Species	Size (Wingspan)	Geological Period	Geographical Distribution
Pterosauria
Rhamphorhynchoidea				Early to Late Jurassic
	Dimorphodontidae	Dimorphodon macronyx	~1.5 m (4.9 ft)	Early Jurassic	Europe (England), North America (Mexico)
	Eudimorphodontidae	Eudimorphodon ranzii	~1 m (3.3 ft)	Late Triassic (Norian)	Europe (Italy, Greenland), potentially North America (Texas)
	Rhamphorhynchidae	Anurognathus ammoni	Small (wingspan < 25 cm)	Late Jurassic	Europe (Germany)
		Rhamphorhynchus etchesi		Jurassic	Europe (Germany, England, Portugal, Spain), Africa (Tanzania)
		Scaphognathus crassirostris	~1 m (3.3 ft)	Late Jurassic	Europe (Germany)
		Sordes pilosus	~1 m (3.3 ft)	Late Jurassic	Asia (Kazakhstan)
Pterodactyloidea				Late Jurassic to Late Cretaceous
	Dsungaripteridae	Dsungaripterus weii	3-4 m (10-13 ft)	Early Cretaceous	Asia (China)
	Pterodaustriidae	Arthurdactylus conandoylei	~5.5 m (18 ft)	Early Cretaceous	South America (Brazil)
		Pterodaustro guinazui	~2.5 m (8 ft)	Early Cretaceous (Albian)	South America (Argentina)
	Pterodactylidae	Cearadactylus atrox	~5.5 m (18 ft)	Early Cretaceous	South America (Brazil)
	Ornithocheiridae	Pteranodon sternbergi	6-7 m (20-23 ft)	Late Cretaceous (Coniacian-Campanian)	North America (Central United States: Kansas, Wyoming, South Dakota, Nebraska, Alabama)
		Quetzalcoatlus lawsoni	~10-11 m (33-36 ft)	Late Cretaceous (Maastrichtian)	North America (North America)

Carnivorous Dinosaurs

Clade	Family	Species	Size (Length)	Geological Period	Geographical Distribution
Theropoda				Late Triassic to Late Cretaceous	Global
Coelurosauria	Podokesauridae	Coelophysis bauri	Up to 3 m (9.8 ft)	Late Triassic (Norian)	North America (New Mexico, USA)
		Procompsognathus triassicus	~1 m (3.3 ft)	Late Triassic (Norian)	Europe (Germany)
		Saltopus elginensis	0.8-1 m (2.6-3.3 ft)	Late Triassic	Europe (Scotland)
	Coeluridae	Coelurus fragilis	~2.4 m (7.9 ft)	Late Jurassic	North America (Wyoming, USA)
		Moros intrepidus	~1.2 m (3.9 ft)	Late Cretaceous (Turonian)	North America (Utah, USA)
	Compsognathidae	Compsognathus longipes	~1.25 m (4.1 ft)	Late Jurassic	Europe (Germany, France)
		Sinosauropteryx lingyuanensis	~1.07 m (3.5 ft)	Early Cretaceous	Asia (China)
	Ornithomimidae	Dromiceiomimus samueli	~3.5 m (11.5 ft)	Late Cretaceous	North America (Alberta, Canada)
		Gallimimus bullatus	~4-6 m (13-20 ft)	Late Cretaceous	Asia (Mongolia)
		Ornithomimus velox	~3.7 m (12 ft)	Late Cretaceous	North America (North America)
		Struthiomimus altus	~4.3 m (14 ft)	Late Cretaceous	North America (Alberta, Canada)
	Deinocheiridae	Deinocheirus mirificus	~11 m (36 ft)	Late Cretaceous	Asia (Mongolia)
Coelurosauria (Maniraptoria)	Oviraptoridae	Oviraptor philoceratops	1.6-2.5 m (5.2-8.2 ft)	Late Cretaceous	Asia (Mongolia, China)
	Therizinosauridae	Therizinosaurus cheloniformis	~10 m (33 ft)	Late Cretaceous	Asia (Mongolia)
	Saurornithoididae (Troodontidae)	Stenonychosaurus inequalis	~2.4 m (7.9 ft)	Late Cretaceous	North America (Alberta, Canada)
		Troodon formosus	Up to 2.4 m (7.9 ft)	Late Cretaceous	North America (Western North America)
	Dromaeosauridae	Bambiraptor feinbergi	0.7-1.3 m (2.3-4.3 ft)	Late Cretaceous	North America (Montana, USA)
		Deinonychus antirrhopus	~3.4 m (11.2 ft)	Early Cretaceous	North America (Western USA)
		Dromaeosaurus albertensis	~2 m (6.6 ft)	Late Cretaceous	North America (Alberta, Canada)
		Saurornitholestes sullivani	~2 m (6.6 ft)	Late Cretaceous	North America (Alberta, Canada)
		Velociraptor osmolskae	~2 m (6.6 ft)	Late Cretaceous	Asia (Mongolia, China)
Archaeopterygiformes	Archaeopterygidae	Archaeopteryx albersdoerferi	~0.5 m (1.6 ft)	Late Jurassic	Europe (Germany)
Ceratosauria	Ceratosauridae	Ceratosaurus nasicornis	~7 m (23 ft)	Late Jurassic	North America (Western USA), Europe (Portugal), Africa (Tanzania)
		Dilophosaurus wetherilli	~7 m (23 ft)	Early Jurassic	North America (Arizona, USA)
		Elaphrosaurus bambergi	~6.2 m (20 ft)	Late Jurassic	Africa (Tanzania)
Carnosauria	Megalosauridae	Eustreptospondylus oxoniensis	~5.2 m (17 ft)	Middle Jurassic	Europe (England)
		Giganotosaurus carolinii	~15 m (49 ft)	Late Cretaceous	South America (Argentina)
		Poekilopleuron bucklandii	~5-6 m (16-20 ft)	Middle Jurassic	Europe (France)
		Proceratosaurus bradleyi	~3 m (10 ft)	Middle Jurassic	Europe (England)
	Allosauridae	Allosaurus europaeus	~12 m (39 ft)	Late Jurassic	Europe (Portugal), North America (USA)
		Yangchuanosaurus zigongensis	~10.8 m (35 ft)	Late Jurassic	Asia (China)
	Spinosauridae	Acrocanthosaurus atokensis	~11.5 m (38 ft)	Early Cretaceous	North America (North America)
		Spinosaurus aegyptiacus	Up to 16 m (52 ft)	Late Cretaceous	Africa (North Africa)
	Tyrannosauridae	Albertosaurus sarcophagus	~10 m (33 ft)	Late Cretaceous	North America (Alberta, Canada)
		Alioramus altai	~5-6 m (16-20 ft)	Late Cretaceous	Asia (Mongolia)
		Daspletosaurus horneri	~9 m (30 ft)	Late Cretaceous	North America (North America)
		Tarbosaurus bataar	~12 m (39 ft)	Late Cretaceous	Asia (Mongolia)
		Tyrannosaurus Rex	~14 m (46 ft)	Late Cretaceous	North America (Western North America)

Long Necked Dinosaurs

Clade	Family	Species	Size (Length)	Geological Period	Geographical Distribution
Sauropodomorpha				Late Triassic to Late Cretaceous	Global
Prosauropoda	Herrerasauridae	Herrerasaurus ischigualastensis	~3-6 m (10-20 ft)	Late Triassic	South America (Argentina)
		Sanjuansaurus gordilloi	~3 m (10 ft)	Late Triassic	South America (Argentina)
		Smurfette (Peyo-era)	Not a real dinosaur	Fictional	Fictional
		Staurikosaurus pricei	~2.25 m (7.4 ft)	Late Triassic (Carnian-Norian)	South America (Brazil)
	Anchisauridae	Anchisaurus polyzelus	~2-2.5 m (6.6-8.2 ft)	Early Jurassic	North America (USA)
		Efraasia minor	~1-2 m (3.3-6.6 ft)	Late Triassic	Europe (Germany)
		Eoraptor lunensis	~1 m (3.3 ft)	Late Triassic	South America (Argentina)
		Thecodontosaurus antiquus	~1.2-2.5 m (3.9-8.2 ft)	Late Triassic (Norian-Rhaetian)	Europe (England, France)
	Plateosauridae	Massospondylus kaalae	~4-6 m (13-20 ft)	Early Jurassic	Africa, North America
		Mussaurus patagonicus	Juvenile fossils up to ~3 m (10 ft), adult size uncertain	Late Triassic	South America (Argentina)
		Plateosaurus gracilis	~4.8-10 m (16-33 ft)	Late Triassic (Norian)	Europe (Germany, France, Switzerland, Norway)
	Melanorosauridae	Riojasaurus incertus	~10 m (33 ft)	Late Triassic	South America (Argentina)
Sauropoda	Cetiosauridae	Barapasaurus tagorei	~12-14 m (39-46 ft)	Early Jurassic	Asia (India)
		Cetiosaurus oxoniensis	~16 m (52 ft)	Middle Jurassic	Europe (England)
	Brachiosauridae	Brachiosaurus altithorax	~26 m (85 ft)	Late Jurassic	North America (USA), Asia (China)
		Sauroposeidon proteles	~28-34 m (92-112 ft)	Early Cretaceous	North America (USA)
	Camarasauridae	Camarasaurus supremus	~15-20 m (49-66 ft)	Late Jurassic	North America (USA)
		Euhelopus zdanskyi	~15 m (49 ft)	Early Cretaceous	Asia (China)
		Opisthocoelicaudia skarzynskii	~12 m (39 ft)	Late Cretaceous	Asia (Mongolia)
	Diplodocidae	Apatosaurus ajax	~23 m (75 ft)	Late Jurassic	North America (USA)
		Dicraeosaurus sattleri	~12-13 m (39-43 ft)	Late Jurassic	Africa (Tanzania)
		Diplodocus hallorum	~33 m (108 ft)	Late Jurassic	North America (USA)
		Mamenchisaurus sinocanadorum	~35 m (115 ft)	Late Jurassic	Asia (China)
		Supersaurus vivianae	~33-35 m (108-115 ft)	Late Jurassic	North America (USA)
	Titanosauridae	Alamosaurus sanjuanensis	~26-30 m (85-98 ft)	Late Cretaceous	North America (USA)
		Dreadnoughtus schrani	~26 m (85 ft)	Late Cretaceous	South America (Argentina)
		Saltasaurus loricatus	~7.5-8.5 m (25-28 ft)	Late Cretaceous	South America (Argentina)

Horn Beaks and two legged Dinosaurs

Clade	Family	Species	Size (Length)	Geological Period	Geographical Distribution
Cerapoda				Jurassic to Late Cretaceous	Global
Ornithopoda	Fabrosauridae	Lesothosaurus diagnosticus	~1-2 m (3.3-6.6 ft)	Early Jurassic	Africa (Lesotho, South Africa)
		Scutellosaurus lawleri	~1.2 m (3.9 ft)	Early Jurassic	North America (Arizona, USA)
	Heterodontosauridae	Echinodon becklesii	~0.6 m (2 ft)	Early Cretaceous	Europe (England)
		Heterodontosaurus tucki	~1.1 m (3.6 ft)	Early Jurassic	Africa (South Africa)
		Pisanosaurus mertii	~1 m (3.3 ft)	Late Triassic	South America (Argentina)
	Hypsilophodontidae	Callovosaurus leedsi	~2.5 m (8.2 ft)	Middle Jurassic	Europe (England)
		Dryosaurus elderae	~2.4-4.5 m (7.9-14.8 ft)	Late Jurassic	North America (Western USA), Africa (Tanzania)
		Hypsilophodon foxii	~1.8 m (5.9 ft)	Early Cretaceous	Europe (England, Spain)
		Nanosaurus agilis	~1 m (3.3 ft)	Late Jurassic	North America (USA)
		Parksosaurus warreni	~2.5 m (8.2 ft)	Late Cretaceous	North America (Alberta, Canada)
		Thescelosaurus garbanii	~2.5-4 m (8.2-13.1 ft)	Late Cretaceous	North America (North America)
	Iguanodontidae	Camptosaurus dispar	~5-7 m (16-23 ft)	Late Jurassic	North America (Western USA)
		Iguanodon bernissartensis	~10 m (33 ft)	Early Cretaceous	Europe (Belgium, England, Germany, Spain, France)
		Mantellisaurus atherfieldensis	~7 m (23 ft)	Early Cretaceous	Europe (England, Germany, Spain)
		Muttaburrasaurus langdoni	~7 m (23 ft)	Early Cretaceous	Oceania (Australia)
		Ouranosaurus nigeriensis	~7-8.3 m (23-27 ft)	Early Cretaceous	Africa (Niger)
		Probactrosaurus gobiensis	~5-6 m (16-20 ft)	Early Cretaceous	Asia (China)
		Tenontosaurus dossi	~6.5-7.5 m (21.3-24.6 ft)	Early Cretaceous	North America (Western USA)
	Hadrosauridae (Saurolophinae)	Bactrosaurus johnsoni	~6 m (20 ft)	Late Cretaceous	Asia (China)
		Edmontosaurus regalis	~12-13 m (39-43 ft)	Late Cretaceous	North America (Western North America)
		Hadrosaurus foulkii	~7-8 m (23-26 ft)	Late Cretaceous	North America (New Jersey, USA)
		Kritosaurus navajovius	~8-9 m (26-30 ft)	Late Cretaceous	North America (Southwest USA)
		Maiasaura peeblesorum	~9 m (30 ft)	Late Cretaceous	North America (Montana, USA)
		Prosaurolophus maximus	~9 m (30 ft)	Late Cretaceous	North America (Alberta, Canada)
		Saurolophus osborni	~9-12 m (30-39 ft)	Late Cretaceous	North America (Alberta, Canada)
		Shantungosaurus giganteus	~15 m (49 ft)	Late Cretaceous	Asia (China)
	Hadrosauridae (Lambeosaurinae)	Corythosaurus casuarius	~7-10 m (23-33 ft)	Late Cretaceous	North America (North America)
		Hypacrosaurus stebingeri	~9-11 m (30-36 ft)	Late Cretaceous	North America (Alberta, Canada)
		Lambeosaurus magnicristatus	~9 m (30 ft)	Late Cretaceous	North America (Alberta, Canada)
		Olorotitan arharensis	~12 m (39 ft)	Late Cretaceous	Asia (Russia)
		Parasaurolophus walkeri	~7.5 m (24.6 ft)	Late Cretaceous	North America (Western North America)
		Tsintaosaurus spinorhinus	~8-10 m (26-33 ft)	Late Cretaceous	Asia (China)
Ceratopsia	Pachycephalosauridae	Homalocephale calathocercos	~3 m (10 ft)	Late Cretaceous	Asia (Mongolia)
		Pachycephalosaurus wyomingensis	~4.5 m (14.8 ft)	Late Cretaceous	North America (Western North America)
		Prenocephale prenes	~2.4 m (7.9 ft)	Late Cretaceous	Asia (Mongolia)
		Stegoceras validum	~2 m (6.6 ft)	Late Cretaceous	North America (Alberta, Canada, Western USA)
	Psittacosauridae	Psittacosaurus meileyingensis	~2 m (6.6 ft)	Early Cretaceous	Asia (China)
	Protoceratopidae	Bagaceratops rozhdestvenskyi	~1 m (3.3 ft)	Late Cretaceous	Asia (Mongolia)
		Leptoceratops gracilis	~2 m (6.6 ft)	Late Cretaceous	North America (Western USA, Alberta, Canada)
		Microceratus gobiensis	~0.6-0.7 m (2-2.3 ft)	Late Cretaceous	Asia (Mongolia)
		Montanoceratops cerorhynchus	~3 m (10 ft)	Late Cretaceous	North America (Montana, USA)
		Protoceratops hellenikorhinus	~2.5 m (8.2 ft)	Late Cretaceous	Asia (Mongolia)
	Ceratopidae (long-frilled)	Anchiceratops ornatus	~5-6 m (16-20 ft)	Late Cretaceous	North America (Alberta, Canada)
		Arrhinoceratops brachyops	~6 m (20 ft)	Late Cretaceous	North America (Alberta, Canada)
		Chasmosaurus belli	~4.8-5 m (16-16 ft)	Late Cretaceous	North America (Alberta, Canada)
		Pentaceratops sternbergii	~5-6 m (16-20 ft)	Late Cretaceous	North America (New Mexico, USA)
		Torosaurus latus	~7.6 m (25 ft)	Late Cretaceous	North America (Western North America)
		Triceratops horridus	~7.9-9 m (26-30 ft)	Late Cretaceous	North America (Western North America)
	Ceratopidae (short-frilled)	Centrosaurus apertus	~5.5-6 m (18-20 ft)	Late Cretaceous	North America (Alberta, Canada)
		Nasutoceratops titusi	~4.5 m (14.8 ft)	Late Cretaceous	North America (Utah, USA)
		Pachyrhinosaurus lakustai	~6 m (20 ft)	Late Cretaceous	North America (Alberta, Canada, Alaska, USA)
		Styracosaurus ovatus	~5.5 m (18 ft)	Late Cretaceous	North America (Alberta, Canada)

Armored Dinosaurs

Clade	Family	Species	Size (Length)	Geological Period	Geographical Distribution
Thyreophora				Early Jurassic to Late Cretaceous	Global
Stegosauria	Huayangosauridae	Huayangosaurus taibaii	~4-4.5 m (13-15 ft)	Middle Jurassic	Asia (China)
		Tuojiangosaurus multispinus	~6.5 m (21 ft)	Late Jurassic	Asia (China)
	Stegosauridae	Kentrosaurus aethiopicus	~4-4.5 m (13-15 ft)	Late Jurassic (Kimmeridgian-Tithonian)	Africa (Tanzania)
		Stegosaurus stenops	~7-9 m (23-30 ft)	Late Jurassic (Kimmeridgian-Tithonian)	North America (Western USA), Europe (Portugal)
		Wuerhosaurus ordosensis	~5-7.6 m (16-25 ft)	Early to Middle Cretaceous	Asia (China, Mongolia)
Ankylosauria	Scelidosauridae	Scelidosaurus harrisonii	~3-4 m (10-13 ft)	Early Jurassic	Europe (England), possibly North America
	Nodosauridae	Hylaeosaurus armatus	~4-6 m (13-20 ft)	Early Cretaceous (Valanginian)	Europe (England)
		Nodosaurus textilis	~4-6 m (13-20 ft)	Late Cretaceous	North America (Western USA, Alberta, Canada)
		Panoplosaurus mirus	~5 m (16 ft)	Late Cretaceous	North America (Canada)
		Polacanthus foxii	~5 m (16 ft)	Early Cretaceous	Europe (England)
		Sauropelta edwardsorum	~5.2 m (17 ft)	Early Cretaceous	North America (Montana, Wyoming)
		Silvisaurus condrayi	~4 m (13 ft)	Early Cretaceous	North America (Kansas)
		Struthiosaurus transylvanicus	~2-3 m (6.6-9.8 ft)	Late Cretaceous	Europe (Austria, Romania)
	Ankylosauridae	Ankylosaurus magniventris	~8-9 m (26-30 ft)	Late Cretaceous	North America (Western North America)
		Euoplocephalus tutus	~5.5-6 m (18-20 ft)	Late Cretaceous	North America (Alberta, Canada)
		Saichania chulsanensis	~5 m (16 ft)	Late Cretaceous	Asia (Mongolia)
		Talarurus plicatospineus	~4.5-6 m (15-20 ft)	Late Cretaceous	Asia (Mongolia)

You're looking for a chart focusing specifically on Size Comparison, Geographical Distribution, and Geological Period for the Pterosauria, broken down by the specific species and families you've provided. This is a great way to highlight the diversity within this order.

Since "Size Comparison" can be tricky for extinct animals (often estimated from fossil remains), I will provide approximate wingspans or estimates of size (e.g., small, medium, large, gigantic) based on scientific consensus. Geographical distribution will be based on fossil locations, and geological period will be the known temporal range of the specific family or species.

Pterosaurs

Here's the chart table for Pterosauria, structured by the families and species you've listed:

Table: Pterosauria – Size Comparison, Geographical, and Geological Distribution

Clade/Order/Family/Species	Approximate Size (Wingspan/Length)	Geographical Distribution (Known Fossil Locations)	Geological Period (Epoch/Period)
Order: Pterosauria	Varied (sparrow-sized to fighter jet-sized)	Global	Late Triassic - Late Cretaceous
Suborder: Rhamphorhynchoidea	Generally smaller than Pterodactyloids	Global	Late Triassic - Late Jurassic
Family: Dimorphodontidae
Dimorphodon macronyx	~1.4 meters (4.6 ft) wingspan	England, UK	Early Jurassic (Sinemurian)
Family: Eudimorphodontidae
Eudimorphodon ranzii	~1.0 meter (3.3 ft) wingspan	Italy, Austria	Late Triassic (Norian)
Family: Rhamphorhynchidae
Anurognathus ammoni	~0.5 meters (1.6 ft) wingspan	Germany	Late Jurassic (Tithonian)
Rhamphorhynchus etchesi	~1.8 meters (5.9 ft) wingspan	Germany, UK, Tanzania	Late Jurassic (Tithonian)
Scaphognathus crassirostris	~0.9 meters (3.0 ft) wingspan	Germany	Late Jurassic (Tithonian)
Sordes pilosus	~0.6 meters (2.0 ft) wingspan	Kazakhstan	Late Jurassic (Kimmeridgian-Tithonian)
Suborder: Pterodactyloidea	Generally larger than Rhamphorhynchoidea	Global	Middle Jurassic - Late Cretaceous
Family: Dsungaripteridae
Dsungaripterus weii	~3.0 - 3.5 meters (9.8-11.5 ft) wingspan	China	Early Cretaceous (Aptian-Albian)
Family: Pterodaustriidae
Arthurdactylus conandoylei	~4.5 - 5.0 meters (14.8-16.4 ft) wingspan	Brazil	Early Cretaceous (Aptian)
Pterodaustro guinazui	~2.5 meters (8.2 ft) wingspan	Argentina	Early Cretaceous (Albian)
Family: Pterodactylidae
Cearadactylus atrox	~4.0 - 5.5 meters (13-18 ft) wingspan	Brazil	Early Cretaceous (Aptian)
Family: Ornithocheiridae
Pteranodon sternbergi	~7.0 - 9.0 meters (23-30 ft) wingspan	North America (Kansas, Wyoming, Nebraska)	Late Cretaceous (Coniacian-Campanian)
Quetzalcoatlus lawsoni	~10 - 11 meters (33-36 ft) wingspan	North America (Texas)	Late Cretaceous (Maastrichtian)

This table provides a more granular view of the size, geographical range, and geological timing for each of the specific pterosaur examples you provided, which helps illustrate the immense diversity within the "Lords of the Ancient Skies."

Saurischia

You've provided another excellent and detailed list for Theropoda! I will now create a chart table specifically focused on Size Comparison, Geographical Distribution, and Geological Period for each of the families and species you've listed.

For "Size Comparison," I'll provide approximate length or height based on scientific estimates. "Geographical Distribution" will be based on known fossil localities, and "Geological Period" will reflect the temporal range of the specific taxa.

Here's the chart table for Theropoda:

Table: Theropoda – Size Comparison, Geographical, and Geological Distribution

Clade/Order/Family/Species	Approximate Size (Length/Height)	Geographical Distribution (Known Fossil Locations)	Geological Period (Epoch/Period)
Order: Saurischia	Varied (from chicken-sized to bus-sized)	Global	Late Triassic - Present (as birds)
Suborder: Theropoda
Infraorder: Coelurosauria	Generally diverse, from small to gigantic	Global	Middle Jurassic - Late Cretaceous
Family: Podokesauridae
Coelophysis bauri	~3 meters (10 ft) length	North America (USA)	Late Triassic (Norian-Rhaetian)
Procompsognathus triassicus	~1 meter (3.3 ft) length	Germany	Late Triassic (Norian)
Saltopus elginensis	~0.6 meters (2 ft) length	Scotland, UK	Late Triassic (Carnian)
Family: Coeluridae
Coelurus fragilis	~2 meters (6.5 ft) length	North America (USA)	Late Jurassic (Kimmeridgian-Tithonian)
Moros intrepidus	~1.2 meters (4 ft) length	North America (USA)	Late Cretaceous (Cenomanian)
Family: Compsognathidae
Compsognathus longipes	~1 meter (3.3 ft) length	Germany, France	Late Jurassic (Tithonian)
Sinosauropteryx lingyuanensis	~1 meter (3.3 ft) length	China	Early Cretaceous (Aptian)
Family: Ornithomimidae
Dromiceiomimus samueli	~3.5 meters (11.5 ft) length	North America (Canada)	Late Cretaceous (Campanian-Maastrichtian)
Gallimimus bullatus	~6 meters (20 ft) length	Mongolia	Late Cretaceous (Maastrichtian)
Ornithomimus velox	~3.8 meters (12.5 ft) length	North America (USA, Canada)	Late Cretaceous (Maastrichtian)
Struthiomimus altus	~4.3 meters (14 ft) length	North America (USA, Canada)	Late Cretaceous (Campanian-Maastrichtian)
Family: Deinocheiridae
Deinocheirus mirificus	~11 meters (36 ft) length	Mongolia	Late Cretaceous (Maastrichtian)
Infraorder: Coelurosauria, Maniraptoria
Family: Oviraptoridae
Oviraptor philoceratops	~1.6 meters (5.2 ft) length	Mongolia	Late Cretaceous (Campanian)
Family: Therizinosauridae
Therizinosaurus cheloniformis	~9-10 meters (30-33 ft) length	Mongolia	Late Cretaceous (Maastrichtian)
Family: Saurornithoididae
Stenonychosaurus inequalis	~2.4 meters (7.9 ft) length	North America (Canada)	Late Cretaceous (Campanian)
Troodon formosus	~2.4 meters (7.9 ft) length	North America (USA, Canada)	Late Cretaceous (Campanian-Maastrichtian)
Family: Dromaeosauridae
Bambiraptor feinbergi	~0.9 meters (3 ft) length	North America (USA)	Late Cretaceous (Campanian)
Deinonychus antirrhopus	~3.4 meters (11 ft) length	North America (USA)	Early Cretaceous (Aptian-Albian)
Dromaeosaurus albertensis	~2 meters (6.5 ft) length	North America (Canada)	Late Cretaceous (Campanian)
Saurornitholestes sullivani	~1.8 meters (6 ft) length	North America (Canada, USA)	Late Cretaceous (Campanian)
Velociraptor osmolskae	~2 meters (6.5 ft) length	Mongolia, China	Late Cretaceous (Campanian)
Order: Archaeopterygiformes
Archaeopteryx albersdoerferi	~0.5 meters (1.6 ft) length	Germany	Late Jurassic (Tithonian)
Infraorder: Ceratosauria	Generally medium to large-sized	Global	Early Jurassic - Late Cretaceous
Family: Ceratosauridae
Ceratosaurus nasicornis	~6 meters (20 ft) length	North America (USA), Portugal, Tanzania	Late Jurassic (Kimmeridgian-Tithonian)
Dilophosaurus wetherilli	~6 meters (20 ft) length	North America (USA)	Early Jurassic (Sinemurian)
Elaphrosaurus bambergi	~6 meters (20 ft) length	Tanzania	Late Jurassic (Kimmeridgian-Tithonian)
Infraorder: Carnosauria	Generally large to gigantic	Global	Middle Jurassic - Late Cretaceous
Family: Megalosauridae
Eustreptospondylus oxoniensis	~5-6 meters (16-20 ft) length	England, UK	Middle Jurassic (Callovian)
Giganotosaurus carolinii	~12.2-13 meters (40-43 ft) length	Argentina	Late Cretaceous (Cenomanian)
Poekilopleuron bucklandii	~7-9 meters (23-30 ft) length	France	Middle Jurassic (Bathonian)
Proceratosaurus bradleyi	~3 meters (10 ft) length	England, UK	Middle Jurassic (Bathonian)
Family: Allosauridae
Allosaurus europaeus	~7-12 meters (23-39 ft) length	Portugal, North America (USA)	Late Jurassic (Kimmeridgian-Tithonian)
Yangchuanosaurus zigongensis	~8-10 meters (26-33 ft) length	China	Late Jurassic (Oxfordian)
Family: Spinosauridae
Acrocanthosaurus atokensis	~11 meters (36 ft) length	North America (USA)	Early Cretaceous (Aptian-Albian)
Spinosaurus aegyptiacus	~15-16 meters (49-52 ft) length	Egypt, Morocco, Niger	Early-Late Cretaceous (Albian-Cenomanian)
Family: Tyrannosauridae
Albertosaurus sarcophagus	~9 meters (30 ft) length	North America (Canada)	Late Cretaceous (Campanian)
Alioramus altai	~5-6 meters (16-20 ft) length	Mongolia	Late Cretaceous (Campanian)
Daspletosaurus horneri	~9 meters (30 ft) length	North America (USA)	Late Cretaceous (Campanian)
Tarbosaurus bataar	~10-12 meters (33-39 ft) length	Mongolia, China	Late Cretaceous (Maastrichtian)
Tyrannosaurus Rex	~12-13 meters (40-43 ft) length	North America (USA, Canada)	Late Cretaceous (Maastrichtian)

You've provided another excellent and detailed list for Sauropodomorpha! I will now create a chart table specifically focused on Size Comparison, Geographical Distribution, and Geological Period for each of the families and species you've listed.

For "Size Comparison," I'll provide approximate length or weight based on scientific estimates. "Geographical Distribution" will be based on known fossil localities, and "Geological Period" will reflect the temporal range of the specific taxa.

Please note that "Smurfette (The Smurfs 2021 tv series)" is a fictional character and not a dinosaur species, so I will omit her from the scientific chart.

Here's the chart table for Sauropodomorpha:

Table: Sauropodomorpha – Size Comparison, Geographical, and Geological Distribution

Clade/Order/Family/Species	Approximate Size (Length/Weight)	Geographical Distribution (Known Fossil Locations)	Geological Period (Epoch/Period)
Order: Saurischia	Varied (from car-sized to jumbo jet-sized)	Global	Late Triassic - Late Cretaceous
Suborder: Sauropodomorpha
Infraorder: Prosauropoda	Generally medium to large-sized, but smaller than true sauropods	Global	Late Triassic - Early Jurassic
Family: Herrerasauridae
Herrerasaurus ischigualastensis	~3-6 meters (10-20 ft) length	Argentina	Late Triassic (Carnian)
Sanjuansaurus gordilloi	~3 meters (10 ft) length	Argentina	Late Triassic (Carnian)
Staurikosaurus pricei	~2-2.5 meters (6.5-8.2 ft) length	Brazil	Late Triassic (Carnian)
Family: Anchisauridae
Anchisaurus polyzelus	~2-2.4 meters (6.5-8 ft) length	North America (USA)	Early Jurassic (Sinemurian-Pliensbachian)
Efraasia minor	~2-6 meters (6.5-20 ft) length	Germany	Late Triassic (Norian)
Eoraptor lunensis	~1 meter (3.3 ft) length	Argentina	Late Triassic (Carnian)
Thecodontosaurus antiquus	~2.5 meters (8.2 ft) length	England, UK	Late Triassic (Rhaetian)
Family: Plateosauridae
Massospondylus kaalae	~4-6 meters (13-20 ft) length	South Africa, Lesotho, Zimbabwe	Early Jurassic (Hettangian-Sinemurian)
Mussaurus patagonicus	~3 meters (10 ft) length (adults)	Argentina	Late Triassic (Norian)
Plateosaurus gracilis	~4.8-10 meters (16-33 ft) length	Germany, France, Switzerland	Late Triassic (Norian-Rhaetian)
Family: Melanorosauridae
Riojasaurus incertus	~6.5-10 meters (21-33 ft) length	Argentina	Late Triassic (Norian)
Infraorder: Sauropoda	Generally gigantic	Global	Early Jurassic - Late Cretaceous
Family: Cetiosauridae
Barapasaurus tagorei	~14 meters (46 ft) length	India	Early Jurassic (Pliensbachian-Toarcian)
Cetiosaurus oxoniensis	~16 meters (52 ft) length	England, UK	Middle Jurassic (Bathonian)
Family: Brachiosauridae
Brachiosaurus altithorax	~27 meters (87 ft) length; ~50 tons	North America (USA), China, India	Late Jurassic (Kimmeridgian-Tithonian)
Sauroposeidon proteles	~28-34 meters (92-112 ft) length; ~50-60 tons	North America (USA)	Early Cretaceous (Aptian)
Family: Camarasauridae
Camarasaurus supremus	~15-23 meters (49-75 ft) length	North America (USA)	Late Jurassic (Kimmeridgian-Tithonian)
Euhelopus zdanskyi	~15 meters (49 ft) length	China	Early Cretaceous (Berriasian)
Opisthocoelicaudia skarzynskii	~12-14 meters (39-46 ft) length	Mongolia	Late Cretaceous (Maastrichtian)
Family: Diplodocidae
Apatosaurus ajax	~23 meters (75 ft) length; ~30-45 tons	North America (USA)	Late Jurassic (Kimmeridgian-Tithonian)
Dicraeosaurus sattleri	~13-14 meters (43-46 ft) length	Tanzania	Late Jurassic (Tithonian)
Diplodocus hallorum	~30-33 meters (98-108 ft) length	North America (USA)	Late Jurassic (Kimmeridgian-Tithonian)
Mamenchisaurus sinocanadorum	~26 meters (85 ft) length	China	Late Jurassic (Oxfordian-Kimmeridgian)
Supersaurus vivianae	~33-35 meters (108-115 ft) length	North America (USA)	Late Jurassic (Kimmeridgian-Tithonian)
Family: Titanosauridae
Alamosaurus sanjuanensis	~26-30 meters (85-98 ft) length; ~60-80 tons	North America (USA)	Late Cretaceous (Maastrichtian)
Dreadnoughtus schrani	~26 meters (85 ft) length; ~40-60 tons	Argentina	Late Cretaceous (Campanian)
Saltasaurus loricatus	~7.5-8.5 meters (25-28 ft) length	Argentina, Uruguay	Late Cretaceous (Campanian-Maastrichtian)

Ornithischia

Got it! You're requesting a detailed chart for the Cerapoda, focusing on Size Comparison, Geographical Distribution, and Geological Period for each of the listed families and species.

I will structure the table to clearly show these details for each specific taxon. "Size Comparison" will be given in approximate length, and sometimes weight if particularly relevant. "Geographical Distribution" will indicate known fossil locations, and "Geological Period" will specify their temporal range.

Here is the chart table for Cerapoda:

Table: Cerapoda – Size Comparison, Geographical, and Geological Distribution

Clade/Order/Family/Species	Approximate Size (Length/Weight)	Geographical Distribution (Known Fossil Locations)	Geological Period (Epoch/Period)
Order: Ornithischia	Varied (from small to very large)	Global	Early Jurassic - Late Cretaceous
Suborder: Cerapoda
Infraorder: Ornithopoda	Diverse, from small to very large	Global	Early Jurassic - Late Cretaceous
Family: Fabrosauridae
Lesothosaurus diagnosticus	~1-2 meters (3.3-6.5 ft) length	Lesotho, South Africa	Early Jurassic (Hettangian-Sinemurian)
Scutellosaurus lawleri	~1.2 meters (4 ft) length	North America (USA)	Early Jurassic (Sinemurian-Pliensbachian)
Family: Heterodontosauridae
Echinodon becklesii	~0.6 meters (2 ft) length	England, UK	Early Cretaceous (Berriasian)
Heterodontosaurus tucki	~1.2 meters (4 ft) length	South Africa	Early Jurassic (Hettangian-Sinemurian)
Pisanosaurus mertii	~1 meter (3.3 ft) length	Argentina	Late Triassic (Carnian)
Family: Hypsilophodontidae
Callovosaurus leedsi	~2.5 meters (8.2 ft) length	England, UK	Middle Jurassic (Callovian)
Dryosaurus elderae	~2.5-4 meters (8.2-13 ft) length	North America (USA, Tanzania)	Late Jurassic (Kimmeridgian-Tithonian)
Hypsilophodon foxii	~1.8-2.5 meters (6-8.2 ft) length	England, Spain, Portugal	Early Cretaceous (Barremian-Aptian)
Nanosaurus agilis	~1 meter (3.3 ft) length	North America (USA)	Late Jurassic (Kimmeridgian-Tithonian)
Parksosaurus warreni	~2.5 meters (8.2 ft) length	North America (Canada)	Late Cretaceous (Maastrichtian)
Thescelosaurus garbanii	~2.5-4 meters (8.2-13 ft) length	North America (USA, Canada)	Late Cretaceous (Maastrichtian)
Family: Iguanodontidae
Camptosaurus dispar	~5-7 meters (16-23 ft) length	North America (USA)	Late Jurassic (Kimmeridgian-Tithonian)
Iguanodon bernissartensis	~12 meters (39 ft) length; ~3-4 tons	Belgium, England, Germany, France	Early Cretaceous (Barremian)
Mantellisaurus atherfieldensis	~7 meters (23 ft) length	England, Germany	Early Cretaceous (Barremian)
Muttaburrasaurus langdoni	~8 meters (26 ft) length	Australia	Early Cretaceous (Albian)
Ouranosaurus nigeriensis	~7-8 meters (23-26 ft) length	Niger	Early Cretaceous (Aptian-Albian)
Probactrosaurus gobiensis	~5.5-6 meters (18-20 ft) length	China, Mongolia	Early Cretaceous (Albian-Cenomanian)
Tenontosaurus dossi	~6.5-8 meters (21-26 ft) length	North America (USA)	Early Cretaceous (Aptian-Albian)
Family: Hadrosauridae (Saurolophinae)
Bactrosaurus johnsoni	~6 meters (20 ft) length	China	Late Cretaceous (Cenomanian-Campanian)
Edmontosaurus regalis	~12 meters (39 ft) length; ~4 tons	North America (USA, Canada)	Late Cretaceous (Maastrichtian)
Hadrosaurus foulkii	~7-8 meters (23-26 ft) length	North America (USA)	Late Cretaceous (Campanian)
Kritosaurus navajovius	~8-9 meters (26-30 ft) length	North America (USA)	Late Cretaceous (Campanian)
Maiasaura peeblesorum	~9 meters (30 ft) length	North America (USA)	Late Cretaceous (Campanian)
Prosaurolophus maximus	~8-9 meters (26-30 ft) length	North America (USA, Canada)	Late Cretaceous (Campanian)
Saurolophus osborni	~9-12 meters (30-39 ft) length	North America (Canada), Mongolia	Late Cretaceous (Maastrichtian)
Shantungosaurus giganteus	~15 meters (49 ft) length; ~15 tons	China	Late Cretaceous (Campanian-Maastrichtian)
Family: Hadrosauridae (Lambeosaurinae)
Corythosaurus casuarius	~7-9 meters (23-30 ft) length	North America (Canada, USA)	Late Cretaceous (Campanian)
Hypacrosaurus stebingeri	~9 meters (30 ft) length	North America (USA, Canada)	Late Cretaceous (Campanian)
Lambeosaurus magnicristatus	~9-10 meters (30-33 ft) length	North America (Canada)	Late Cretaceous (Campanian)
Olorotitan arharensis	~8 meters (26 ft) length	Russia	Late Cretaceous (Maastrichtian)
Parasaurolophus walkeri	~9.5 meters (31 ft) length	North America (USA, Canada)	Late Cretaceous (Campanian)
Tsintaosaurus spinorhinus	~8-10 meters (26-33 ft) length	China	Late Cretaceous (Campanian)
Infraorder: Ceratopsia	Diverse, from small to large	Asia, North America	Middle Jurassic - Late Cretaceous
Family: Pachycephalosauridae
Homalocephale calathocercos	~3 meters (10 ft) length	Mongolia	Late Cretaceous (Campanian-Maastrichtian)
Pachycephalosaurus wyomingensis	~4.5 meters (15 ft) length	North America (USA, Canada)	Late Cretaceous (Maastrichtian)
Prenocephale prenes	~2.5 meters (8.2 ft) length	Mongolia	Late Cretaceous (Campanian-Maastrichtian)
Stegoceras validum	~2 meters (6.5 ft) length	North America (Canada, USA)	Late Cretaceous (Campanian)
Family: Psittacosauridae
Psittacosaurus meileyingensis	~2 meters (6.5 ft) length	China, Mongolia, Russia, Thailand	Early Cretaceous (Aptian)
Family: Protoceratopidae
Bagaceratops rozhdestvenskyi	~1 meter (3.3 ft) length	Mongolia	Late Cretaceous (Campanian)
Leptoceratops gracilis	~2 meters (6.5 ft) length	North America (USA, Canada)	Late Cretaceous (Maastrichtian)
Microceratus gobiensis	~0.5-0.6 meters (1.6-2 ft) length	Mongolia, China	Late Cretaceous (Campanian)
Montanoceratops cerorhynchus	~2.5 meters (8.2 ft) length	North America (USA)	Late Cretaceous (Maastrichtian)
Protoceratops hellenikorhinus	~2.5 meters (8.2 ft) length	Mongolia, China	Late Cretaceous (Campanian)
Family: Ceratopidae (long-frilled ceratopsians)
Anchiceratops ornatus	~5-6 meters (16-20 ft) length	North America (Canada)	Late Cretaceous (Campanian)
Arrhinoceratops brachyops	~6 meters (20 ft) length	North America (Canada)	Late Cretaceous (Maastrichtian)
Chasmosaurus belli	~5 meters (16 ft) length	North America (Canada)	Late Cretaceous (Campanian)
Pentaceratops sternbergii	~6 meters (20 ft) length	North America (USA)	Late Cretaceous (Campanian)
Torosaurus latus	~7.6-9 meters (25-30 ft) length	North America (USA, Canada)	Late Cretaceous (Maastrichtian)
Triceratops horridus	~8-9 meters (26-30 ft) length; ~6-12 tons	North America (USA, Canada)	Late Cretaceous (Maastrichtian)
Family: Ceratopidae (short-frilled ceratopsians)
Centrosaurus apertus	~6 meters (20 ft) length	North America (Canada, USA)	Late Cretaceous (Campanian)
Nasutoceratops titusi	~4.5-5 meters (15-16 ft) length	North America (USA)	Late Cretaceous (Campanian)
Pachyrhinosaurus lakustai	~6-8 meters (20-26 ft) length	North America (Canada, USA)	Late Cretaceous (Campanian-Maastrichtian)
Styracosaurus ovatus	~5.5 meters (18 ft) length	North America (Canada)	Late Cretaceous (Campanian)

Certainly! Here is the detailed chart table for the Thyreophora, focusing on Size Comparison, Geographical Distribution, and Geological Period for each of the families and species you've listed.

For "Size Comparison," I'll provide approximate length and, where applicable, weight. "Geographical Distribution" will indicate known fossil locations, and "Geological Period" will specify their temporal range.

Table: Thyreophora – Size Comparison, Geographical, and Geological Distribution

Clade/Order/Family/Species	Approximate Size (Length/Weight)	Geographical Distribution (Known Fossil Locations)	Geological Period (Epoch/Period)
Order: Ornithischia	Varied (from small to large)	Global	Early Jurassic - Late Cretaceous
Suborder: Thyreophora
Infraorder: Stegosauria	Generally medium to large-sized	Global (Europe, North America, Asia, Africa)	Middle Jurassic - Early Cretaceous
Family: Huayangosauridae
Huayangosaurus taibaii	~4.5 meters (15 ft) length	China	Middle Jurassic (Bathonian)
Tuojiangosaurus multispinus	~6.5 meters (21 ft) length	China	Late Jurassic (Oxfordian-Kimmeridgian)
Family: Stegosauridae
Kentrosaurus aethiopicus	~4.5 meters (15 ft) length	Tanzania	Late Jurassic (Kimmeridgian)
Stegosaurus stenops	~9 meters (30 ft) length; ~5 tons	North America (USA)	Late Jurassic (Kimmeridgian-Tithonian)
Wuerhosaurus ordosensis	~6.5 meters (21 ft) length	China	Early Cretaceous (Barremian-Aptian)
Infraorder: Ankylosauria	Generally medium to large-sized	Global	Early Jurassic - Late Cretaceous
Family: Scelidosauridae
Scelidosaurus harrisonii	~4 meters (13 ft) length	England, UK	Early Jurassic (Sinemurian-Pliensbachian)
Family: Nodosauridae
Hylaeosaurus armatus	~6 meters (20 ft) length	England, UK	Early Cretaceous (Valanginian-Barremian)
Nodosaurus textilis	~5.5 meters (18 ft) length	North America (USA)	Late Cretaceous (Cenomanian)
Panoplosaurus mirus	~6.6 meters (22 ft) length	North America (Canada, USA)	Late Cretaceous (Campanian)
Polacanthus foxii	~5 meters (16 ft) length	England, Spain	Early Cretaceous (Barremian)
Sauropelta edwardsorum	~5.2 meters (17 ft) length	North America (USA)	Early Cretaceous (Aptian-Albian)
Silvisaurus condrayi	~4 meters (13 ft) length	North America (USA)	Late Cretaceous (Cenomanian)
Struthiosaurus transylvanicus	~2-3 meters (6.5-10 ft) length	Romania, Austria, France	Late Cretaceous (Campanian-Maastrichtian)
Family: Ankylosauridae
Ankylosaurus magniventris	~6.25 meters (20.5 ft) length; ~6 tons	North America (USA, Canada)	Late Cretaceous (Maastrichtian)
Euoplocephalus tutus	~6 meters (20 ft) length; ~2 tons	North America (Canada, USA)	Late Cretaceous (Campanian)
Saichania chulsanensis	~5.5 meters (18 ft) length	Mongolia	Late Cretaceous (Campanian)
Talarurus plicatospineus	~5-6 meters (16-20 ft) length	Mongolia	Late Cretaceous (Cenomanian-Turonian)

Origin of Dinosaurs

Pterosauria – Lords of the Ancient Skies: Chart Table

Clade	Name	Time	Locality	Size Comparison	Diet	Formation	Geographical	Geological
Pterosauria, Rhamphorhynchoidea, Dimorphodontidae	Dimorphodon macronyx	Early Jurassic (190–180 Ma)	Lyme Regis, England	Wingspan ~4.6 ft (1.4 m); size of a large eagle	Carnivore/Insectivore	Blue Lias Formation	Western Europe (England)	Early Jurassic (Hettangian–Sinemurian)
Pterosauria, Rhamphorhynchoidea, Eudimorphodontidae	Eudimorphodon ranzii	Late Triassic (210–200 Ma)	Cene, Northern Italy	Wingspan ~3.3 ft (1 m); size of a hawk	Piscivore/Carnivore	Zorzino Limestone	Southern Europe (Italy)	Late Triassic (Norian)
Pterosauria, Rhamphorhynchoidea, Rhamphorhynchidae	Anurognathus ammoni	Late Jurassic (150–148 Ma)	Solnhofen, Germany	Wingspan ~1.6 ft (0.5 m); size of a small bat	Insectivore	Solnhofen Limestone	Western Europe (Germany)	Late Jurassic (Tithonian)
Pterosauria, Rhamphorhynchoidea, Rhamphorhynchidae	Rhamphorhynchus etchesi	Late Jurassic (150–148 Ma)	Kimmeridge, England; Solnhofen, Germany	Wingspan ~5.9 ft (1.8 m); size of a large seagull	Piscivore	Kimmeridge Clay, Solnhofen Limestone	Western Europe (England, Germany)	Late Jurassic (Kimmeridgian–Tithonian)
Pterosauria, Rhamphorhynchoidea, Rhamphorhynchidae	Scaphognathus crassirostris	Late Jurassic (150–148 Ma)	Solnhofen, Germany	Wingspan ~3 ft (0.9 m); size of a crow	Carnivore/Insectivore	Solnhofen Limestone	Western Europe (Germany)	Late Jurassic (Tithonian)
Pterosauria, Rhamphorhynchoidea, Rhamphorhynchidae	Sordes pilosus	Late Jurassic (155–150 Ma)	Karatau, Kazakhstan	Wingspan ~2 ft (0.6 m); size of a small hawk	Piscivore/Insectivore	Karabastau Formation	Central Asia (Kazakhstan)	Late Jurassic (Oxfordian–Kimmeridgian)
Pterosauria, Pterodactyloidea, Dsungaripteridae	Dsungaripterus weii	Early Cretaceous (120–110 Ma)	Junggar Basin, China	Wingspan ~10–11.5 ft (3–3.5 m); size of a large albatross	Carnivore/Molluscivore	Lianmugin Formation	East Asia (China)	Early Cretaceous (Aptian–Albian)
Pterosauria, Pterodactyloidea, Pterodaustriidae	Arthurdactylus conandoylei	Early Cretaceous (125–120 Ma)	Santana, Brazil	Wingspan ~15 ft (4.6 m); size of a small plane	Piscivore	Santana Formation	South America (Brazil)	Early Cretaceous (Albian)
Pterosauria, Pterodactyloidea, Pterodaustriidae	Pterodaustro guinazui	Early Cretaceous (105–100 Ma)	San Luis, Argentina	Wingspan ~8.2 ft (2.5 m); size of a large pelican	Filter-feeder	Lagarcito Formation	South America (Argentina)	Early Cretaceous (Albian)
Pterosauria, Pterodactyloidea, Pterodactylidae	Cearadactylus atrox	Early Cretaceous (120–110 Ma)	Santana, Brazil	Wingspan ~16.5 ft (5 m); size of a small plane	Piscivore	Santana Formation	South America (Brazil)	Early Cretaceous (Albian)
Pterosauria, Pterodactyloidea, Ornithocheiridae	Pteranodon sternbergi	Late Cretaceous (85–75 Ma)	Western Interior Seaway, USA	Wingspan ~20–23 ft (6–7 m); size of a hang glider	Piscivore	Niobrara Formation	North America (Kansas, USA)	Late Cretaceous (Campanian)
Pterosauria, Pterodactyloidea, Ornithocheiridae	Quetzalcoatlus lawsoni	Late Cretaceous (70–65 Ma)	Big Bend, Texas, USA	Wingspan ~33–45.9 ft (10–14 m); size of a small airplane	Carnivore/Scavenger	Javelina Formation	North America (Texas, USA)	Late Cretaceous (Maastrichtian)

Theropoda – The Predatory Elite: Chart Table

Clade	Name	Time	Locality	Size Comparison	Diet	Formation	Geographical	Geological
Saurischia, Theropoda, Coelurosauria, Podokesauridae	Coelophysis bauri	Late Triassic (210–205 Ma)	Ghost Ranch, New Mexico, USA	~9 ft (2.7 m) long; size of a large dog	Carnivore	Chinle Formation	North America (USA)	Late Triassic (Norian)
Saurischia, Theropoda, Coelurosauria, Podokesauridae	Procompsognathus triassicus	Late Triassic (210 Ma)	Pfaffenheim, Germany	~3.3 ft (1 m) long; size of a chicken	Carnivore/Insectivore	Löwenstein Formation	Western Europe (Germany)	Late Triassic (Norian)
Saurischia, Theropoda, Coelurosauria, Podokesauridae	Saltopus elginensis	Late Triassic (230–225 Ma)	Elgin, Scotland	~2 ft (0.6 m) long; size of a small cat	Carnivore/Insectivore	Lossiemouth Sandstone	Western Europe (Scotland)	Late Triassic (Carnian–Norian)
Saurischia, Theropoda, Coelurosauria, Coeluridae	Coelurus fragilis	Late Jurassic (155–150 Ma)	Morrison, Wyoming, USA	~6.6 ft (2 m) long; size of a wolf	Carnivore	Morrison Formation	North America (USA)	Late Jurassic (Kimmeridgian–Tithonian)
Saurischia, Theropoda, Coelurosauria, Coeluridae	Moros intrepidus	Late Cretaceous (96 Ma)	Cedar Mountain, Utah, USA	~5 ft (1.5 m) long; size of a small dog	Carnivore	Cedar Mountain Formation	North America (USA)	Late Cretaceous (Cenomanian)
Saurischia, Theropoda, Coelurosauria, Compsognathidae	Compsognathus longipes	Late Jurassic (150 Ma)	Solnhofen, Germany; Canjuers, France	~4.6 ft (1.4 m) long; size of a turkey	Carnivore	Solnhofen Limestone	Western Europe (Germany, France)	Late Jurassic (Tithonian)
Saurischia, Theropoda, Coelurosauria, Compsognathidae	Sinosauropteryx lingyuanensis	Early Cretaceous (125–120 Ma)	Liaoning, China	~4 ft (1.2 m) long; size of a large chicken	Carnivore	Yixian Formation	East Asia (China)	Early Cretaceous (Barremian–Aptian)
Saurischia, Theropoda, Coelurosauria, Ornithomimidae	Dromiceiomimus samueli	Late Cretaceous (70 Ma)	Dinosaur Park, Alberta, Canada	~12 ft (3.6 m) long; size of an ostrich	Omnivore	Dinosaur Park Formation	North America (Canada)	Late Cretaceous (Campanian)
Saurischia, Theropoda, Coelurosauria, Ornithomimidae	Gallimimus bullatus	Late Cretaceous (70 Ma)	Nemegt, Gobi Desert, Mongolia	~20 ft (6 m) long; size of a large ostrich	Omnivore	Nemegt Formation	East Asia (Mongolia)	Late Cretaceous (Maastrichtian)
Saurischia, Theropoda, Coelurosauria, Ornithomimidae	Ornithomimus velox	Late Cretaceous (75–65 Ma)	Denver, Colorado, USA	~12 ft (3.6 m) long; size of an ostrich	Omnivore	Denver Formation	North America (USA)	Late Cretaceous (Campanian–Maastrichtian)
Saurischia, Theropoda, Coelurosauria, Ornithomimidae	Struthiomimus altus	Late Cretaceous (75 Ma)	Dinosaur Park, Alberta, Canada; Lance, Wyoming, USA	~14 ft (4.3 m) long; size of an ostrich	Omnivore	Dinosaur Park Formation; Lance Formation	North America (Canada, USA)	Late Cretaceous (Campanian)
Saurischia, Theropoda, Coelurosauria, Deinocheiridae	Deinocheirus mirificus	Late Cretaceous (70 Ma)	Nemegt, Gobi Desert, Mongolia	~36 ft (11 m) long; size of a bus	Omnivore	Nemegt Formation	East Asia (Mongolia)	Late Cretaceous (Maastrichtian)
Saurischia, Theropoda, Coelurosauria, Maniraptoria, Oviraptoridae	Oviraptor philoceratops	Late Cretaceous (75 Ma)	Djadokhta, Mongolia	~6 ft (1.8 m) long; size of a large turkey	Omnivore	Djadokhta Formation	East Asia (Mongolia)	Late Cretaceous (Campanian)
Saurischia, Theropoda, Coelurosauria, Maniraptoria, Therizinosauridae	Therizinosaurus cheloniformis	Late Cretaceous (70 Ma)	Nemegt, Gobi Desert, Mongolia	~33 ft (10 m) long; size of a large elephant	Herbivore	Nemegt Formation	East Asia (Mongolia)	Late Cretaceous (Maastrichtian)
Saurischia, Theropoda, Coelurosauria, Maniraptoria, Saurornithoididae	Stenonychosaurus inequalis	Late Cretaceous (75 Ma)	Dinosaur Park, Alberta, Canada	~6.6 ft (2 m) long; size of a wolf	Carnivore	Dinosaur Park Formation	North America (Canada)	Late Cretaceous (Campanian)
Saurischia, Theropoda, Coelurosauria, Maniraptoria, Saurornithoididae	Troodon formosus	Late Cretaceous (77–65 Ma)	Hell Creek, Montana, USA	~6.6 ft (2 m) long; size of a wolf	Carnivore/Omnivore	Hell Creek Formation	North America (USA)	Late Cretaceous (Maastrichtian)
Saurischia, Theropoda, Coelurosauria, Maniraptoria, Dromaeosauridae	Bambiraptor feinbergi	Late Cretaceous (75 Ma)	Two Medicine, Montana, USA	~3 ft (0.9 m) long; size of a small dog	Carnivore	Two Medicine Formation	North America (USA)	Late Cretaceous (Campanian)
Saurischia, Theropoda, Coelurosauria, Maniraptoria, Dromaeosauridae	Deinonychus antirrhopus	Early Cretaceous (115–108 Ma)	Cloverly, Montana, USA	~11 ft (3.4 m) long; size of a large wolf	Carnivore	Cloverly Formation	North America (USA)	Early Cretaceous (Aptian–Albian)
Saurischia, Theropoda, Coelurosauria, Maniraptoria, Dromaeosauridae	Dromaeosaurus albertensis	Late Cretaceous (76 Ma)	Dinosaur Park, Alberta, Canada	~6 ft (1.8 m) long; size of a large dog	Carnivore	Dinosaur Park Formation	North America (Canada)	Late Cretaceous (Campanian)
Saurischia, Theropoda, Coelurosauria, Maniraptoria, Dromaeosauridae	Saurornitholestes sullivani	Late Cretaceous (75 Ma)	Dinosaur Park, Alberta, Canada	~6 ft (1.8 m) long; size of a large dog	Carnivore	Dinosaur Park Formation	North America (Canada)	Late Cretaceous (Campanian)
Saurischia, Theropoda, Coelurosauria, Maniraptoria, Dromaeosauridae	Velociraptor osmolskae	Late Cretaceous (75–70 Ma)	Djadokhta, Mongolia	~6 ft (1.8 m) long; size of a large dog	Carnivore	Djadokhta Formation	East Asia (Mongolia)	Late Cretaceous (Campanian)
Saurischia, Theropoda, Coelurosauria, Archaeopterygiformes	Archaeopteryx albersdoerferi	Late Jurassic (150 Ma)	Solnhofen, Germany	~1.6 ft (0.5 m) long; size of a pigeon	Carnivore/Insectivore	Solnhofen Limestone	Western Europe (Germany)	Late Jurassic (Tithonian)
Saurischia, Theropoda, Ceratosauria, Ceratosauridae	Ceratosaurus nasicornis	Late Jurassic (153–148 Ma)	Morrison, Colorado, USA; Lourinhã, Portugal	~20 ft (6 m) long; size of a large alligator	Carnivore	Morrison Formation; Lourinhã Formation	North America (USA); Western Europe (Portugal)	Late Jurassic (Kimmeridgian–Tithonian)
Saurischia, Theropoda, Ceratosauria, Ceratosauridae	Dilophosaurus wetherilli	Early Jurassic (193 Ma)	Kayenta, Arizona, USA	~20 ft (6 m) long; size of a large alligator	Carnivore	Kayenta Formation	North America (USA)	Early Jurassic (Sinemurian)
Saurischia, Theropoda, Ceratosauria, Ceratosauridae	Elaphrosaurus bambergi	Late Jurassic (154 Ma)	Tendaguru, Tanzania	~20 ft (6 m) long; size of a large horse	Carnivore/Omnivore	Tendaguru Formation	East Africa (Tanzania)	Late Jurassic (Kimmeridgian)
Saurischia, Theropoda, Carnosauria, Megalosauridae	Eustreptospondylus oxoniensis	Late Jurassic (160 Ma)	Oxford, England	~23 ft (7 m) long; size of a large bear	Carnivore	Oxford Clay Formation	Western Europe (England)	Late Jurassic (Callovian)
Saurischia, Theropoda, Carnosauria, Megalosauridae	Giganotosaurus carolinii	Early Cretaceous (99–97 Ma)	Candeleros, Argentina	~50.9 ft (15.5 m) long; size of a bus	Carnivore	Candeleros Formation	South America (Argentina)	Early Cretaceous (Cenomanian)
Saurischia, Theropoda, Carnosauria, Megalosauridae	Poekilopleuron bucklandii	Middle Jurassic (165 Ma)	Normandy, France	~23 ft (7 m) long; size of a large bear	Carnivore	Calcaire de Caen Formation	Western Europe (France)	Middle Jurassic (Bathonian)
Saurischia, Theropoda, Carnosauria, Megalosauridae	Proceratosaurus bradleyi	Middle Jurassic (165 Ma)	Minchinhampton, England	~10 ft (3 m) long; size of a large wolf	Carnivore	Great Oolite Group	Western Europe (England)	Middle Jurassic (Bathonian)
Saurischia, Theropoda, Carnosauria, Allosauridae	Allosaurus europaeus	Late Jurassic (150–145 Ma)	Lourinhã, Portugal; Morrison, Colorado, USA	~39.4 ft (12 m) long; size of a large rhino	Carnivore	Lourinhã Formation; Morrison Formation; Garden Park	Western Europe (Portugal), North America (USA)	Late Jurassic (Kimmeridgian–Tithonian)
Saurischia, Theropoda, Carnosauria, Allosauridae	Yangchuanosaurus zigongensis	Late Jurassic (160 Ma)	Zigong, China	~26 ft (8 m) long; size of a large rhino	Carnivore	Shangshaximiao Formation	East Asia (China)	Late Jurassic (Oxfordian–Kimmeridgian)
Saurischia, Theropoda, Carnosauria, Spinosauridae	Acrocanthosaurus atokensis	Early Cretaceous (115–110 Ma)	Antlers, Oklahoma, USA	~38 ft (11.5 m) long; size of a bus	Carnivore	Antlers Formation	North America (USA)	Early Cretaceous (Aptian–Albian)
Saurischia, Theropoda, Carnosauria, Spinosauridae	Spinosaurus aegyptiacus	Early Cretaceous (112–97 Ma)	Bahariya, Egypt; Kem Kem, Morocco	~50 ft (15 m) long; size of a large bus	Piscivore/Carnivore	Bahariya Formation, Kem Kem Beds	North Africa (Egypt, Morocco)	Early Cretaceous (Albian–Cenomanian)
Saurischia, Theropoda, Carnosauria, Tyrannosauridae	Albertosaurus sarcophagus	Late Cretaceous (70 Ma)	Horseshoe Canyon, Alberta, Canada	~30 ft (9 m) long; size of a large rhino	Carnivore	Horseshoe Canyon Formation	North America (Canada)	Late Cretaceous (Maastrichtian)
Saurischia, Theropoda, Carnosauria, Tyrannosauridae	Alioramus altai	Late Cretaceous (70 Ma)	Nemegt, Mongolia	~20 ft (6 m) long; size of a large alligator	Carnivore	Nemegt Formation	East Asia (Mongolia)	Late Cretaceous (Maastrichtian)
Saurischia, Theropoda, Carnosauria, Tyrannosauridae	Daspletosaurus horneri	Late Cretaceous (75 Ma)	Two Medicine, Montana, USA	~30 ft (9 m) long; size of a large rhino	Carnivore	Two Medicine Formation	North America (USA)	Late Cretaceous (Campanian)
Saurischia, Theropoda, Carnosauria, Tyrannosauridae	Tarbosaurus bataar	Late Cretaceous (70 Ma)	Nemegt, Mongolia	~40 ft (12.2 m) long; size of a large rhino	Carnivore	Nemegt Formation	East Asia (Mongolia)	Late Cretaceous (Maastrichtian)
Saurischia, Theropoda, Carnosauria, Tyrannosauridae	Tyrannosaurus rex	Late Cretaceous (68–65 Ma)	Hell Creek, Montana, Lance, Wyoming, USA USA	~45.9 ft (14 m) long; size of a bus	Carnivore	Hell Creek Formation; Lance Formation	North America (USA)	Late Cretaceous (Maastrichtian)

Sauropodomorpha – The Gentle Giants: Chart Table

Clade	Name	Time	Locality	Size Comparison	Diet	Formation	Geographical	Geological
Saurischia, Sauropodomorpha, Prosauropoda, Herrerasauridae	Herrerasaurus ischigualastensis	Late Triassic (231 Ma)	Ischigualasto, Argentina	~13–20 ft (4–6 m) long; size of a large crocodile	Carnivore	Ischigualasto Formation	South America (Argentina)	Late Triassic (Carnian)
Saurischia, Sauropodomorpha, Prosauropoda, Herrerasauridae	Sanjuansaurus gordilloi	Late Triassic (231 Ma)	Ischigualasto, Argentina	~10 ft (3 m) long; size of a large dog	Carnivore	Ischigualasto Formation	South America (Argentina)	Late Triassic (Carnian)
Saurischia, Sauropodomorpha, Prosauropoda, Herrerasauridae	Smurfette (Hypothetical)	Late Triassic (231–225 Ma); then 1981	Hypothetical, South America (Argentina or Brazil); Europe	~7-10 inch tall. Smurfette is the same size as other Smurfs.	Carnivore/Omnivore	Hypothetical (Ischigualasto or Santa Maria Formation); Smurfette's origin is unique among the Smurfs.	South America (Argentina or Brazil); Western Europe (Belgium; Smurf Village)	Late Triassic (Carnian–Norian)
Saurischia, Sauropodomorpha, Prosauropoda, Herrerasauridae	Staurikosaurus pricei	Late Triassic (225 Ma)	Santa Maria, Brazil	~7 ft (2 m) long; size of a large dog	Carnivore	Santa Maria Formation	South America (Brazil)	Late Triassic (Carnian)
Saurischia, Sauropodomorpha, Prosauropoda, Anchisauridae	Anchisaurus polyzelus	Early Jurassic (190 Ma)	Connecticut Valley, USA	~6–8 ft (1.8–2.4 m) long; size of a large dog	Herbivore/Omnivore	Portland Formation	North America (USA)	Early Jurassic (Hettangian)
Saurischia, Sauropodomorpha, Prosauropoda, Anchisauridae	Efraasia minor	Late Triassic (210 Ma)	Stuttgart, Germany	~6.5 ft (2 m) long; size of a large dog	Herbivore/Omnivore	Löwenstein Formation	Western Europe (Germany)	Late Triassic (Norian)
Saurischia, Sauropodomorpha, Prosauropoda, Anchisauridae	Eoraptor lunensis	Late Triassic (231 Ma)	Ischigualasto, Argentina	~3.3 ft (1 m) long; size of a small dog	Omnivore	Ischigualasto Formation	South America (Argentina)	Late Triassic (Carnian)
Saurischia, Sauropodomorpha, Prosauropoda, Anchisauridae	Thecodontosaurus antiquus	Late Triassic (210 Ma)	Bristol, England	~6.5 ft (2 m) long; size of a large dog	Herbivore	Magnesian Conglomerate	Western Europe (England)	Late Triassic (Rhaetian)
Saurischia, Sauropodomorpha, Prosauropoda, Plateosauridae	Massospondylus kaalae	Early Jurassic (200–183 Ma)	Upper Karoo, South Africa	~13–20 ft (4–6 m) long; size of a large horse	Herbivore	Elliot Formation	Southern Africa (South Africa)	Early Jurassic (Hettangian–Pliensbachian)
Saurischia, Sauropodomorpha, Prosauropoda, Plateosauridae	Mussaurus patagonicus	Late Triassic (215 Ma)	El Tranquilo, Argentina	~10–20 ft (3–6 m) long; size of a horse (adults)	Herbivore	Laguna Colorada Formation	South America (Argentina)	Late Triassic (Norian)
Saurischia, Sauropodomorpha, Prosauropoda, Plateosauridae	Plateosaurus gracilis	Late Triassic (210 Ma)	Trossingen, Germany	~16–26 ft (5–8 m) long; size of a large horse	Herbivore	Trossingen Formation	Western Europe (Germany)	Late Triassic (Norian)
Saurischia, Sauropodomorpha, Prosauropoda, Melanorosauridae	Riojasaurus incertus	Late Triassic (210 Ma)	Los Colorados, Argentina	~33 ft (10 m) long; size of an elephant	Herbivore	Los Colorados Formation	South America (Argentina)	Late Triassic (Norian)
Saurischia, Sauropodomorpha, Sauropoda, Cetiosauridae	Barapasaurus tagorei	Early Jurassic (183 Ma)	Godavari Valley, India	~60 ft (18 m) long; size of a large bus	Herbivore	Kota Formation	South Asia (India)	Early Jurassic (Toarcian)
Saurischia, Sauropodomorpha, Sauropoda, Cetiosauridae	Cetiosaurus oxoniensis	Middle Jurassic (167 Ma)	Oxfordshire, England	~50 ft (15 m) long; size of a bus	Herbivore	Oxford Clay Formation	Western Europe (England)	Middle Jurassic (Callovian)
Saurischia, Sauropodomorpha, Sauropoda, Brachiosauridae	Brachiosaurus altithorax	Late Jurassic (154–150 Ma)	Morrison, Colorado, USA; Sichuan, China	~85 ft (26 m) long; size of a large airplane	Herbivore	Morrison Formation, Garden Park; Shishugou Formation	North America (USA); East Asia (China)	Late Jurassic (Kimmeridgian–Tithonian)
Saurischia, Sauropodomorpha, Sauropoda, Brachiosauridae	Sauroposeidon proteles	Early Cretaceous (112 Ma)	Antlers, Oklahoma, USA	~100 ft (30 m) long; size of a jumbo jet	Herbivore	Antlers Formation	North America (USA)	Early Cretaceous (Albian)
Saurischia, Sauropodomorpha, Sauropoda, Camarasauridae	Camarasaurus supremus	Late Jurassic (150–145 Ma)	Morrison, Wyoming, Uinta Mountains, USA	~60 ft (18 m) long; size of a large bus	Herbivore	Morrison Formation; Dinosaur National Monument	North America (USA)	Late Jurassic (Kimmeridgian–Tithonian)
Saurischia, Sauropodomorpha, Sauropoda, Camarasauridae	Euhelopus zdanskyi	Late Jurassic (150 Ma)	Shandong, China	~50 ft (15 m) long; size of a bus	Herbivore	Mengyin Formation	East Asia (China)	Late Jurassic (Tithonian)
Saurischia, Sauropodomorpha, Sauropoda, Camarasauridae	Opisthocoelicaudia skarzynskii	Late Cretaceous (70 Ma)	Nemegt, Mongolia	~40 ft (12 m) long; size of a bus	Herbivore	Nemegt Formation	East Asia (Mongolia)	Late Cretaceous (Maastrichtian)
Saurischia, Sauropodomorpha, Sauropoda, Diplodocidae	Apatosaurus ajax	Late Jurassic (150 Ma)	Morrison, Colorado, Uinta Mountains, USA	~79.7 ft (24.3 m) long; size of a large trailer	Herbivore	Morrison Formation; Dinosaur National Monument	North America (USA)	Late Jurassic (Kimmeridgian–Tithonian)
Saurischia, Sauropodomorpha, Sauropoda, Diplodocidae	Dicraeosaurus sattleri	Late Jurassic (150 Ma)	Tendaguru, Tanzania	~40 ft (12 m) long; size of a bus	Herbivore	Tendaguru Formation	East Africa (Tanzania)	Late Jurassic (Kimmeridgian–Tithonian)
Saurischia, Sauropodomorpha, Sauropoda, Diplodocidae	Diplodocus hallorum	Late Jurassic (150–145 Ma)	Morrison, New Mexico, Uinta Mountains, Colorado, USA	~95–110 ft (29–33.5 m) long; size of a jumbo jet	Herbivore	Morrison Formation; Dinosaur National Monument; Garden Park	North America (USA)	Late Jurassic (Kimmeridgian–Tithonian)
Saurischia, Sauropodomorpha, Sauropoda, Diplodocidae	Mamenchisaurus sinocanadorum	Late Jurassic (160 Ma)	Sichuan, China	~115 ft (35 m) long; size of a jumbo jet	Herbivore	Shishugou Formation	East Asia (China)	Late Jurassic (Oxfordian–Kimmeridgian)
Saurischia, Sauropodomorpha, Sauropoda, Diplodocidae	Supersaurus vivianae	Late Jurassic (150 Ma)	Morrison, Colorado, USA	~108–131 ft (33–40 m) long; size of a jumbo jet	Herbivore	Morrison Formation	North America (USA)	Late Jurassic (Kimmeridgian–Tithonian)
Saurischia, Sauropodomorpha, Sauropoda, Titanosauridae	Alamosaurus sanjuanensis	Late Cretaceous (70–65 Ma)	Ojo Alamo, New Mexico, USA	~70–100 ft (21–30 m) long; size of a large airplane	Herbivore	Ojo Alamo Formation	North America (USA)	Late Cretaceous (Maastrichtian)
Saurischia, Sauropodomorpha, Sauropoda, Titanosauridae	Dreadnoughtus schrani	Late Cretaceous (77 Ma)	Cerro Fortaleza, Argentina	~85 ft (26 m) long; size of a large airplane	Herbivore	Cerro Fortaleza Formation	South America (Argentina)	Late Cretaceous (Campanian)
Saurischia, Sauropodomorpha, Sauropoda, Titanosauridae	Saltasaurus loricatus	Late Cretaceous (70–65 Ma)	Lecho, Argentina	~40 ft (12 m) long; size of a bus	Herbivore	Lecho Formation	South America (Argentina)	Late Cretaceous (Maastrichtian)

Cerapoda – Beaked, Horned, and Armored: Chart Table

Clade	Name	Time	Locality	Size Comparison	Diet	Formation	Geographical	Geological
Ornithischia, Cerapoda, Ornithopoda, Fabrosauridae	Lesothosaurus diagnosticus	Early Jurassic (200 Ma)	Upper Elliot, Lesotho	~6.6 ft (2 m) long; size of a large dog	Herbivore	Upper Elliot Formation	Southern Africa (Lesotho)	Early Jurassic (Hettangian)
Ornithischia, Cerapoda, Ornithopoda, Fabrosauridae	Scutellosaurus lawleri	Early Jurassic (196 Ma)	Kayenta, Arizona, USA	~4 ft (1.2 m) long; size of a small dog	Herbivore	Kayenta Formation	North America (USA)	Early Jurassic (Sinemurian)
Ornithischia, Cerapoda, Ornithopoda, Heterodontosauridae	Echinodon becklesii	Early Cretaceous (140 Ma)	Purbeck, England	~2 ft (0.6 m) long; size of a small cat	Herbivore/Omnivore	Purbeck Group	Western Europe (England)	Early Cretaceous (Berriasian)
Ornithischia, Cerapoda, Ornithopoda, Heterodontosauridae	Heterodontosaurus tucki	Early Jurassic (200 Ma)	Upper Elliot, South Africa	~4 ft (1.2 m) long; size of a small dog	Herbivore/Omnivore	Upper Elliot Formation	Southern Africa (South Africa)	Early Jurassic (Hettangian)
Ornithischia, Cerapoda, Ornithopoda, Heterodontosauridae	Pisanosaurus mertii	Late Triassic (228 Ma)	Ischigualasto, Argentina	~3.3 ft (1 m) long; size of a small dog	Herbivore	Ischigualasto Formation	South America (Argentina)	Late Triassic (Carnian)
Ornithischia, Cerapoda, Ornithopoda, Hypsilophodontidae	Callovosaurus leedsi	Middle Jurassic (165 Ma)	Oxford, England	~11.5 ft (3.5 m) long; size of a large horse	Herbivore	Oxford Clay Formation	Western Europe (England)	Middle Jurassic (Callovian)
Ornithischia, Cerapoda, Ornithopoda, Hypsilophodontidae	Dryosaurus elderae	Late Jurassic (150 Ma)	Morrison, Utah, USA	~8–10 ft (2.4–3 m) long; size of a large dog	Herbivore	Morrison Formation	North America (USA)	Late Jurassic (Kimmeridgian–Tithonian)
Ornithischia, Cerapoda, Ornithopoda, Hypsilophodontidae	Hypsilophodon foxii	Early Cretaceous (125 Ma)	Isle of Wight, England	~6 ft (1.8 m) long; size of a large dog	Herbivore	Wessex Formation	Western Europe (England)	Early Cretaceous (Barremian)
Ornithischia, Cerapoda, Ornithopoda, Hypsilophodontidae	Nanosaurus agilis	Late Jurassic (150 Ma)	Morrison, Utah, USA	~6 ft (1.8 m) long; size of a large dog	Herbivore	Morrison Formation	North America (USA)	Late Jurassic (Kimmeridgian–Tithonian)
Ornithischia, Cerapoda, Ornithopoda, Hypsilophodontidae	Parksosaurus warreni	Late Cretaceous (76–65 Ma)	Horseshoe Canyon, Alberta, Canada	~8 ft (2.4 m) long; size of a large dog	Herbivore	Horseshoe Canyon Formation	North America (Canada)	Late Cretaceous (Campanian)
Ornithischia, Cerapoda, Ornithopoda, Hypsilophodontidae	Thescelosaurus garbanii	Late Cretaceous (66 Ma)	Hell Creek, Montana, USA	~11–13 ft (3.4–4 m) long; size of a horse	Herbivore	Hell Creek Formation	North America (USA)	Late Cretaceous (Maastrichtian)
Ornithischia, Cerapoda, Ornithopoda, Iguanodontidae	Camptosaurus dispar	Late Jurassic (150 Ma)	Morrison, Wyoming, USA	~20 ft (6 m) long; size of a large horse	Herbivore	Morrison Formation	North America (USA)	Late Jurassic (Kimmeridgian–Tithonian)
Ornithischia, Cerapoda, Ornithopoda, Iguanodontidae	Iguanodon bernissartensis	Early Cretaceous (125 Ma)	Bernissart, Belgium	~43 ft (13 m) long; size of an elephant	Herbivore	Wealden Group	Western Europe (Belgium, England)	Early Cretaceous (Barremian–Aptian)
Ornithischia, Cerapoda, Ornithopoda, Iguanodontidae	Mantellisaurus atherfieldensis	Early Cretaceous (125 Ma)	Isle of Wight, England	~23 ft (7 m) long; size of a large horse	Herbivore	Wessex Formation	Western Europe (England)	Early Cretaceous (Barremian)
Ornithischia, Cerapoda, Ornithopoda, Iguanodontidae	Muttaburrasaurus langdoni	Early Cretaceous (110 Ma)	Muttaburra, Australia	~26 ft (8 m) long; size of a large horse	Herbivore	Mackunda Formation	Australia	Early Cretaceous (Albian)
Ornithischia, Cerapoda, Ornithopoda, Iguanodontidae	Ouranosaurus nigeriensis	Early Cretaceous (115 Ma)	Gadoufaoua, Niger	~24 ft (7.3 m) long; size of a large horse	Herbivore	Elrhaz Formation	North Africa (Niger)	Early Cretaceous (Aptian–Albian)
Ornithischia, Cerapoda, Ornithopoda, Iguanodontidae	Probactrosaurus gobiensis	Early Cretaceous (110 Ma)	Dashuigou, Gobi Desert, China	~20 ft (6 m) long; size of a large horse	Herbivore	Dashuigou Formation	East Asia (China)	Early Cretaceous (Albian)
Ornithischia, Cerapoda, Ornithopoda, Iguanodontidae	Tenontosaurus dossi	Early Cretaceous (115 Ma)	Cloverly, Montana, USA	~20–26 ft (6–8 m) long; size of a large horse	Herbivore	Cloverly Formation	North America (USA)	Early Cretaceous (Aptian–Albian)
Ornithischia, Cerapoda, Ornithopoda, Hadrosauridae (Saurolophinae)	Bactrosaurus johnsoni	Late Cretaceous (80 Ma)	Iren Dabasu, China	~20 ft (6 m) long; size of a large horse	Herbivore	Iren Dabasu Formation	East Asia (China)	Late Cretaceous (Campanian)
Ornithischia, Cerapoda, Ornithopoda, Hadrosauridae (Saurolophinae)	Edmontosaurus regalis	Late Cretaceous (73–65 Ma)	Horseshoe Canyon, Alberta, Canada; Lance, Wyoming, USA	~40 ft (12 m) long; size of a bus	Herbivore	Horseshoe Canyon Formation; Lance Formation	North America (Canada, USA)	Late Cretaceous (Campanian)
Ornithischia, Cerapoda, Ornithopoda, Hadrosauridae (Saurolophinae)	Hadrosaurus foulkii	Late Cretaceous (80 Ma)	Woodbury, New Jersey, USA	~30 ft (9 m) long; size of a large rhino	Herbivore	Woodbury Formation	North America (USA)	Late Cretaceous (Campanian)
Ornithischia, Cerapoda, Ornithopoda, Hadrosauridae (Saurolophinae)	Kritosaurus navajovius	Late Cretaceous (73 Ma)	Kirtland, New Mexico, USA	~30 ft (9 m) long; size of a large rhino	Herbivore	Kirtland Formation	North America (USA)	Late Cretaceous (Campanian)
Ornithischia, Cerapoda, Ornithopoda, Hadrosauridae (Saurolophinae)	Maiasaura peeblesorum	Late Cretaceous (76 Ma)	Two Medicine, Montana, USA	~30 ft (9 m) long; size of a large rhino	Herbivore	Two Medicine Formation	North America (USA)	Late Cretaceous (Campanian)
Ornithischia, Cerapoda, Ornithopoda, Hadrosauridae (Saurolophinae)	Prosaurolophus maximus	Late Cretaceous (75 Ma)	Dinosaur Park, Alberta, Canada	~26 ft (8 m) long; size of a large horse	Herbivore	Dinosaur Park Formation	North America (Canada)	Late Cretaceous (Campanian)
Ornithischia, Cerapoda, Ornithopoda, Hadrosauridae (Saurolophinae)	Saurolophus osborni	Late Cretaceous (70 Ma)	Horseshoe Canyon, Alberta, Canada; Nemegt, Mongolia	~33 ft (10 m) long; size of a large rhino	Herbivore	Horseshoe Canyon, Nemegt Formations	North America (Canada), East Asia (Mongolia)	Late Cretaceous (Maastrichtian)
Ornithischia, Cerapoda, Ornithopoda, Hadrosauridae (Saurolophinae)	Shantungosaurus giganteus	Late Cretaceous (78 Ma)	Shandong, China	~50 ft (15 m) long; size of a bus	Herbivore	Wangshi Group	East Asia (China)	Late Cretaceous (Campanian)
Ornithischia, Cerapoda, Ornithopoda, Hadrosauridae (Lambeosaurinae)	Corythosaurus casuarius	Late Cretaceous (77 Ma)	Dinosaur Park, Alberta, Canada; Lance, Wyoming, USA	~33 ft (10 m) long; size of a large rhino	Herbivore	Dinosaur Park Formation	North America (Canada, USA)	Late Cretaceous (Campanian)
Ornithischia, Cerapoda, Ornithopoda, Hadrosauridae (Lambeosaurinae)	Hypacrosaurus stebingeri	Late Cretaceous (75 Ma)	Two Medicine, Montana, USA	~30 ft (9 m) long; size of a large rhino	Herbivore	Two Medicine Formation	North America (USA)	Late Cretaceous (Campanian)
Ornithischia, Cerapoda, Ornithopoda, Hadrosauridae (Lambeosaurinae)	Lambeosaurus magnicristatus	Late Cretaceous (76 Ma)	Dinosaur Park, Alberta, Canada	~30 ft (9 m) long; size of a large rhino	Herbivore	Dinosaur Park Formation	North America (Canada)	Late Cretaceous (Campanian)
Ornithischia, Cerapoda, Ornithopoda, Hadrosauridae (Lambeosaurinae)	Olorotitan arharensis	Late Cretaceous (70 Ma)	Kundur, Russia	~40 ft (12 m) long; size of a bus	Herbivore	Udurchukan Formation	Eastern Europe (Russia)	Late Cretaceous (Maastrichtian)
Ornithischia, Cerapoda, Ornithopoda, Hadrosauridae (Lambeosaurinae)	Parasaurolophus walkeri	Late Cretaceous (76 Ma)	Dinosaur Park, Alberta, Canada	~33 ft (10 m) long; size of a large rhino	Herbivore	Dinosaur Park Formation	North America (Canada)	Late Cretaceous (Campanian)
Ornithischia, Cerapoda, Ornithopoda, Hadrosauridae (Lambeosaurinae)	Tsintaosaurus spinorhinus	Late Cretaceous (78 Ma)	Wangshi, Shandong, China	~33 ft (10 m) long; size of a large rhino	Herbivore	Wangshi Group	East Asia (China)	Late Cretaceous (Campanian)
Ornithischia, Cerapoda, Ceratopia, Pachycephalosauridae	Homalocephale calathocercos	Late Cretaceous (70 Ma)	Nemegt, Mongolia	~6 ft (1.8 m) long; size of a large dog	Herbivore	Nemegt Formation	East Asia (Mongolia)	Late Cretaceous (Maastrichtian)
Ornithischia, Cerapoda, Ceratopia, Pachycephalosauridae	Pachycephalosaurus wyomingensis	Late Cretaceous (70–65 Ma)	Hell Creek, Wyoming, USA	~15 ft (4.5 m) long; size of a large horse	Herbivore	Hell Creek Formation	North America (USA)	Late Cretaceous (Maastrichtian)
Ornithischia, Cerapoda, Ceratopia, Pachycephalosauridae	Prenocephale prenes	Late Cretaceous (70 Ma)	Nemegt, Mongolia	~7 ft (2.1 m) long; size of a large dog	Herbivore	Nemegt Formation	East Asia (Mongolia)	Late Cretaceous (Maastrichtian)
Ornithischia, Cerapoda, Ceratopia, Pachycephalosauridae	Stegoceras validum	Late Cretaceous (75 Ma)	Dinosaur Park, Alberta, Canada	~6.6 ft (2 m) long; size of a large dog	Herbivore	Dinosaur Park Formation	North America (Canada)	Late Cretaceous (Campanian)
Ornithischia, Cerapoda, Ceratopia, Psittacosauridae	Psittacosaurus meileyingensis	Early Cretaceous (125 Ma)	Yixian, Liaoning, China	~6.6 ft (2 m) long; size of a large dog	Herbivore	Yixian Formation	East Asia (China)	Early Cretaceous (Barremian–Aptian)
Ornithischia, Cerapoda, Ceratopia, Protoceratopidae	Bagaceratops rozhdestvenskyi	Late Cretaceous (80 Ma)	Barun Goyot, Mongolia	~3.3 ft (1 m) long; size of a small dog	Herbivore	Barun Goyot Formation	East Asia (Mongolia)	Late Cretaceous (Campanian)
Ornithischia, Cerapoda, Ceratopia, Protoceratopidae	Leptoceratops gracilis	Late Cretaceous (66 Ma)	Hell Creek, Montana, USA	~6.6 ft (2 m) long; size of a large dog	Herbivore	Hell Creek Formation	North America (USA)	Late Cretaceous (Maastrichtian)
Ornithischia, Cerapoda, Ceratopia, Protoceratopidae	Microceratus gobiensis	Late Cretaceous (80 Ma)	Minhe, Gobi Desert, Mongolia	~2 ft (0.6 m) long; size of a small cat	Herbivore	Minhe Formation	East Asia (Mongolia)	Late Cretaceous (Campanian)
Ornithischia, Cerapoda, Ceratopia, Protoceratopidae	Montanoceratops cerorhynchus	Late Cretaceous (70 Ma)	St. Mary River, Montana, USA	~10 ft (3 m) long; size of a large dog	Herbivore	St. Mary River Formation	North America (USA)	Late Cretaceous (Maastrichtian)
Ornithischia, Cerapoda, Ceratopia, Protoceratopidae	Protoceratops hellenikorhinus	Late Cretaceous (75 Ma)	Djadokhta, Mongolia	~6 ft (1.8 m) long; size of a large dog	Herbivore	Djadokhta Formation	East Asia (Mongolia)	Late Cretaceous (Campanian)
Ornithischia, Cerapoda, Ceratopia, Ceratopidae (long-frilled)	Anchiceratops ornatus	Late Cretaceous (73 Ma)	Horseshoe Canyon, Alberta, Canada	~16 ft (5 m) long; size of a large horse	Herbivore	Horseshoe Canyon Formation	North America (Canada)	Late Cretaceous (Campanian)
Ornithischia, Cerapoda, Ceratopia, Ceratopidae (long-frilled)	Arrhinoceratops brachyops	Late Cretaceous (70 Ma)	Horseshoe Canyon, Alberta, Canada	~20 ft (6 m) long; size of a large rhino	Herbivore	Horseshoe Canyon Formation	North America (Canada)	Late Cretaceous (Maastrichtian)
Ornithischia, Cerapoda, Ceratopia, Ceratopidae (long-frilled)	Chasmosaurus belli	Late Cretaceous (76 Ma)	Dinosaur Park, Alberta, Canada	~16 ft (5 m) long; size of a large horse	Herbivore	Dinosaur Park Formation	North America (Canada)	Late Cretaceous (Campanian)
Ornithischia, Cerapoda, Ceratopia, Ceratopidae (long-frilled)	Pentaceratops sternbergii	Late Cretaceous (75 Ma)	Kirtland, New Mexico, USA	~20 ft (6 m) long; size of a large rhino	Herbivore	Kirtland Formation	North America (USA)	Late Cretaceous (Campanian)
Ornithischia, Cerapoda, Ceratopia, Ceratopidae (long-frilled)	Torosaurus latus	Late Cretaceous (68–65 Ma)	Hell Creek, Montana, Laramie, Colorado, USA	~25 ft (7.6 m) long; size of a large rhino	Herbivore	Hell Creek Formation; Laramie Formation	North America (USA)	Late Cretaceous (Maastrichtian)
Ornithischia, Cerapoda, Ceratopia, Ceratopidae (long-frilled)	Triceratops horridus	Late Cretaceous (68–65 Ma)	Hell Creek, Montana, Lance, Wyoming, USA	~30 ft (9 m) long; size of a large rhino	Herbivore	Hell Creek Formation, Lance Formation	North America (USA)	Late Cretaceous (Maastrichtian)
Ornithischia, Cerapoda, Ceratopia, Ceratopidae (short-frilled)	Centrosaurus apertus	Late Cretaceous (76 Ma)	Dinosaur Park, Alberta, Canada	~20 ft (6 m) long; size of a large horse	Herbivore	Dinosaur Park Formation	North America (Canada)	Late Cretaceous (Campanian)
Ornithischia, Cerapoda, Ceratopia, Ceratopidae (short-frilled)	Nasutoceratops titusi	Late Cretaceous (76 Ma)	Kaiparowits, Utah, USA	~15 ft (4.5 m) long; size of a large horse	Herbivore	Kaiparowits Formation	North America (USA)	Late Cretaceous (Campanian)
Ornithischia, Cerapoda, Ceratopia, Ceratopidae (short-frilled)	Pachyrhinosaurus lakustai	Late Cretaceous (73–65 Ma)	Wapiti, Alberta, Canada; Laramie, Colorado, USA	~20 ft (6 m) long; size of a large horse	Herbivore	Wapiti Formation; Laramie Formation	North America (Canada, USA)	Late Cretaceous (Campanian)
Ornithischia, Cerapoda, Ceratopia, Ceratopidae (short-frilled)	Styracosaurus ovatus	Late Cretaceous (75 Ma)	Dinosaur Park, Alberta, Canada	~18 ft (5.5 m) long; size of a large horse	Herbivore	Dinosaur Park Formation	North America (Canada)	Late Cretaceous (Campanian)

Thyreophora – The Armored Tanks: Chart Table

Clade	Name	Time	Locality	Size Comparison	Diet	Formation	Geographical	Geological
Ornithischia, Thyreophora, Stegosauria, Huayangosauridae	Huayangosaurus taibaii	Middle Jurassic (165 Ma)	Zigong, Sichuan, China	~15 ft (4.5 m) long; size of a large horse	Herbivore	Lower Shaximiao Formation	East Asia (China)	Middle Jurassic (Callovian)
Ornithischia, Thyreophora, Stegosauria, Huayangosauridae	Tuojiangosaurus multispinus	Late Jurassic (160 Ma)	Zigong, Sichuan, China	~23 ft (7 m) long; size of a large rhino	Herbivore	Upper Shaximiao Formation	East Asia (China)	Late Jurassic (Oxfordian–Kimmeridgian)
Ornithischia, Thyreophora, Stegosauria, Stegosauridae	Kentrosaurus aethiopicus	Late Jurassic (155–150 Ma)	Tendaguru, Tanzania	~15 ft (4.5 m) long; size of a large horse	Herbivore	Tendaguru Formation	East Africa (Tanzania)	Late Jurassic (Kimmeridgian–Tithonian)
Ornithischia, Thyreophora, Stegosauria, Stegosauridae	Stegosaurus stenops	Late Jurassic (150–140 Ma)	Morrison, Wyoming, Uinta Mountains, USA; Lourinhã, Portugal	~33.1 ft (10.1 m) long; size of a bus	Herbivore	Morrison Formation; Dinosaur National Monument; Lourinhã Formation	North America (USA), Western Europe (Portugal)	Late Jurassic (Kimmeridgian–Tithonian)
Ornithischia, Thyreophora, Stegosauria, Stegosauridae	Wuerhosaurus ordosensis	Early Cretaceous (125 Ma)	Ordos Basin, Inner Mongolia, China	~23 ft (7 m) long; size of a large rhino	Herbivore	Ejinhoro Formation	East Asia (China)	Early Cretaceous (Aptian–Albian)
Ornithischia, Thyreophora, Ankylosauria, Scelidosauridae	Scelidosaurus harrisonii	Early Jurassic (190 Ma)	Charmouth, Dorset, England	~13 ft (4 m) long; size of a large horse	Herbivore	Charmouth Mudstone Formation	Western Europe (England)	Early Jurassic (Sinemurian)
Ornithischia, Thyreophora, Ankylosauria, Nodosauridae	Hylaeosaurus armatus	Early Cretaceous (135 Ma)	Tilgate Forest, England	~16 ft (5 m) long; size of a large horse	Herbivore	Grinstead Clay Formation	Western Europe (England)	Early Cretaceous (Valanginian)
Ornithischia, Thyreophora, Ankylosauria, Nodosauridae	Nodosaurus textilis	Late Cretaceous (100 Ma)	Frontier, Wyoming, USA	~20 ft (6 m) long; size of a large rhino	Herbivore	Frontier Formation	North America (USA)	Late Cretaceous (Cenomanian)
Ornithischia, Thyreophora, Ankylosauria, Nodosauridae	Panoplosaurus mirus	Late Cretaceous (76–65 Ma)	Dinosaur Park, Alberta, Canada	~23 ft (7 m) long; size of a large rhino	Herbivore	Dinosaur Park Formation	North America (Canada)	Late Cretaceous (Campanian)
Ornithischia, Thyreophora, Ankylosauria, Nodosauridae	Polacanthus foxii	Early Cretaceous (125 Ma)	Isle of Wight, England	~16 ft (5 m) long; size of a large horse	Herbivore	Wessex Formation	Western Europe (England)	Early Cretaceous (Barremian)
Ornithischia, Thyreophora, Ankylosauria, Nodosauridae	Sauropelta edwardsorum	Early Cretaceous (115 Ma)	Cloverly, Montana, USA	~25 ft (7.6 m) long; size of a large rhino	Herbivore	Cloverly Formation	North America (USA)	Early Cretaceous (Aptian–Albian)
Ornithischia, Thyreophora, Ankylosauria, Nodosauridae	Silvisaurus condrayi	Late Cretaceous (95 Ma)	Smoky Hill, Kansas, USA	~13 ft (4 m) long; size of a large horse	Herbivore	Dakota Formation	North America (USA)	Late Cretaceous (Cenomanian)
Ornithischia, Thyreophora, Ankylosauria, Nodosauridae	Struthiosaurus transylvanicus	Late Cretaceous (70 Ma)	Hațeg Basin, Romania	~10 ft (3 m) long; size of a large dog	Herbivore	Sânpetru Formation	Eastern Europe (Romania)	Late Cretaceous (Maastrichtian)
Ornithischia, Thyreophora, Ankylosauria, Ankylosauridae	Ankylosaurus magniventris	Late Cretaceous (68–65 Ma)	Hell Creek, Montana, USA	~31.5 ft (9.6 m) long; size of a bus	Herbivore	Hell Creek Formation	North America (USA)	Late Cretaceous (Maastrichtian)
Ornithischia, Thyreophora, Ankylosauria, Ankylosauridae	Euoplocephalus tutus	Late Cretaceous (76 Ma)	Dinosaur Park, Alberta, Canada	~20 ft (6 m) long; size of a large rhino	Herbivore	Dinosaur Park Formation	North America (Canada)	Late Cretaceous (Campanian)
Ornithischia, Thyreophora, Ankylosauria, Ankylosauridae	Saichania chulsanensis	Late Cretaceous (75 Ma)	Nemegt, Mongolia	~20 ft (6 m) long; size of a large rhino	Herbivore	Barun Goyot Formation	East Asia (Mongolia)	Late Cretaceous (Campanian)
Ornithischia, Thyreophora, Ankylosauria, Ankylosauridae	Talarurus plicatospineus	Late Cretaceous (75 Ma)	Bayan Shiree, Mongolia	~16 ft (5 m) long; size of a large horse	Herbivore	Bayan Shiree Formation	East Asia (Mongolia)	Late Cretaceous (Campanian)

Dinosaur and Pterosaur Classification Table

Join Thea Stilton, voiced by Sarah Edmondson, on a thrilling expedition through the ancient world of dinosaurs and pterosaurs! From soaring sky lords to earth-shaking giants, let’s uncover the secrets of these prehistoric marvels!

Name Means	Classification	Size Comparison	Place	Diet	Details
Pterosauria – Lords of the Ancient Skies
Dimorphodon macronyx: "Two-form tooth, large claw"	Order: Pterosauria, Suborder: Rhamphorhynchoidea, Family: Dimorphodontidae	~1 m wingspan, like a mighty eagle	England, ~200–190 Mya (Late Triassic–Early Jurassic)	Carnivore/Insectivore	Thea’s log: Found in the Lias Group’s ancient seas, this pterosaur’s big head and sharp teeth were perfect for snatching insects or small prey. Its two types of teeth made it a Jurassic standout!
Eudimorphodon ranzii: "True two-form tooth"	Order: Pterosauria, Suborder: Rhamphorhynchoidea, Family: Eudimorphodontidae	~1 m wingspan, like a swift hawk	Italy, ~210 Mya (Late Triassic)	Carnivore/Piscivore	Thea’s log: Discovered in Zorzino Limestone, this flier’s needle-like teeth snagged fish from Triassic seas. A clue to early pterosaur diversity in Europe!
Anurognathus ammoni: "Tailless jaw"	Order: Pterosauria, Suborder: Rhamphorhynchoidea, Family: Rhamphorhynchidae	~0.5 m wingspan, like a tiny bat	Germany, ~150 Mya (Late Jurassic)	Insectivore	Thea’s log: Darting through Solnhofen Limestone’s skies, this petite pterosaur gobbled insects like a modern bat. Its short tail was a rare trait!
Rhamphorhynchus etchesi: "Beak snout"	Order: Pterosauria, Suborder: Rhamphorhynchoidea, Family: Rhamphorhynchidae	~1.8 m wingspan, like a soaring seagull	England, ~150 Mya (Late Jurassic)	Piscivore	Thea’s log: From Kimmeridge Clay, its long tail and sharp teeth helped it skim fish from the sea. Wing membranes in fossils reveal its flight secrets!
Scaphognathus crassirostris: "Boat jaw, thick snout"	Order: Pterosauria, Suborder: Rhamphorhynchoidea, Family: Rhamphorhynchidae	~0.9 m wingspan, like a small hawk	Germany, ~150 Mya (Late Jurassic)	Carnivore/Piscivore	Thea’s log: Rare Solnhofen Limestone fossils show its robust jaw, perfect for snatching fish or small prey in Jurassic lagoons.
Sordes pilosus: "Hairy devil"	Order: Pterosauria, Suborder: Rhamphorhynchoidea, Family: Rhamphorhynchidae	~1 m wingspan, like a large crow	Kazakhstan, ~150 Mya (Late Jurassic)	Piscivore	Thea’s log: Karabastau Formation’s lake deposits reveal fuzzy pterosaurs! This one scooped fish with its sharp beak, a hairy marvel of the skies.
Dsungaripterus weii: "Junggar wing"	Order: Pterosauria, Suborder: Pterodactyloidea, Family: Dsungaripteridae	~3 m wingspan, like an albatross	China, ~120 Mya (Early Cretaceous)	Piscivore/Carnivore	Thea’s log: From Tugulu Group’s floodplains, its thick skull and curved beak cracked shells or caught fish. A tough flier in Asian skies!
Arthurdactylus conandoylei: "Arthur’s finger"	Order: Pterosauria, Suborder: Pterodactyloidea, Family: Pterodaustriidae	~4.6 m wingspan, like a small plane	Brazil, ~110 Mya (Early Cretaceous)	Piscivore	Thea’s log: Santana Formation’s coastal lagoons were home to this large pterosaur, diving for fish with its sharp beak. A South American sky lord!
Pterodaustro guinazui: "Southern wing"	Order: Pterosauria, Suborder: Pterodactyloidea, Family: Pterodaustriidae	~2.5 m wingspan, like a flamingo	Argentina, ~105 Mya (Early Cretaceous)	Filter-feeder	Thea’s log: Lagarcito Formation’s comb-toothed flier filter-fed like a flamingo, scooping tiny organisms from lakes. A Cretaceous marvel!
Cearadactylus atrox: "Ceará finger, fierce"	Order: Pterosauria, Suborder: Pterodactyloidea, Family: Pterodactylidae	~5 m wingspan, like a small aircraft	Brazil, ~110 Mya (Early Cretaceous)	Piscivore	Thea’s log: Santana Formation’s fierce coastal predator, its large jaws snagged fish in Cretaceous seas. A true sky hunter!
Pteranodon sternbergi: "Toothless wing"	Order: Pterosauria, Suborder: Pterodactyloidea, Family: Ornithocheiridae	~6–7 m wingspan, like a hang glider	USA, ~85 Mya (Late Cretaceous)	Piscivore	Thea’s log: Soaring over Niobrara Formation’s seas, its crest and toothless beak made it a master fish-catcher. An iconic sky lord!
Quetzalcoatlus lawsoni: "Feathered serpent god"	Order: Pterosauria, Suborder: Pterodactyloidea, Family: Ornithocheiridae	~10–17 m wingspan, like a small plane	USA, ~70 Mya (Late Cretaceous)	Carnivore/Scavenger	Thea’s log: Javelina Formation’s giant, one of the largest fliers ever, stalked prey or scavenged on land. Ruler of Late Cretaceous skies!
Theropoda – The Predatory Elite
Coelophysis bauri: "Hollow form"	Order: Saurischia, Suborder: Theropoda, Infraorder: Coelurosauria, Family: Podokesauridae	~3 m long, like a small car	USA, ~210 Mya (Late Triassic)	Carnivore	Thea’s log: Chinle Formation’s nimble predator hunted small animals with sharp teeth and speedy legs. A Triassic trailblazer!
Procompsognathus triassicus: "Before elegant jaw"	Order: Saurischia, Suborder: Theropoda, Infraorder: Coelurosauria, Family: Podokesauridae	~1 m long, like a large dog	Germany, ~210 Mya (Late Triassic)	Carnivore	Thea’s log: Löwenstein Formation’s speedy hunter chased lizards and insects in Triassic forests. A tiny terror!
Saltopus elginensis: "Hopping foot"	Order: Saurischia, Suborder: Theropoda, Infraorder: Coelurosauria, Family: Podokesauridae	~0.6 m long, like a small cat	Scotland, ~230 Mya (Late Triassic)	Carnivore	Thea’s log: Lossiemouth Sandstone’s lightweight predator zipped after insects in arid landscapes. A hopping hunter!
Coelurus fragilis: "Hollow tail"	Order: Saurischia, Suborder: Theropoda, Infraorder: Coelurosauria, Family: Coeluridae	~2 m long, like a motorcycle	USA, ~150 Mya (Late Jurassic)	Carnivore	Thea’s log: Morrison Formation’s slender predator hunted small prey with hollow bones for speed. A Jurassic sprinter!
Moros intrepidus: "Doom, fearless"	Order: Saurischia, Suborder: Theropoda, Infraorder: Coelurosauria, Family: Coeluridae	~1.8 m long, like a large dog	USA, ~96 Mya (Early Cretaceous)	Carnivore	Thea’s log: Cedar Mountain Formation’s bold hunter, bridging early and advanced coelurosaurs. Fearless indeed!
Compsognathus longipes: "Elegant jaw"	Order: Saurischia, Suborder: Theropoda, Infraorder: Coelurosauria, Family: Compsognathidae	~1.4 m long, like a large turkey	Germany, ~150 Mya (Late Jurassic)	Carnivore	Thea’s log: Solnhofen Limestone’s petite predator ate lizards, with fossils showing gut contents. A dainty Jurassic hunter!
Sinosauropteryx lingyuanensis: "Chinese lizard wing"	Order: Saurischia, Suborder: Theropoda, Infraorder: Coelurosauria, Family: Compsognathidae	~1 m long, like a small dog	China, ~125 Mya (Early Cretaceous)	Carnivore	Thea’s log: Yixian Formation’s feathered dinosaur, a key bird link, hunted in lake-filled forests. A feathery find!
Dromiceiomimus samueli: "Emu mimic"	Order: Saurischia, Suborder: Theropoda, Infraorder: Coelurosauria, Family: Ornithomimidae	~3.5 m long, like a small car	Canada, ~75 Mya (Late Cretaceous)	Omnivore	Thea’s log: Dinosaur Park Formation’s ostrich-like sprinter ate plants and small animals in floodplains. Speedy and versatile!
Gallimimus bullatus: "Chicken mimic"	Order: Saurischia, Suborder: Theropoda, Infraorder: Coelurosauria, Family: Ornithomimidae	~6 m long, like a pickup truck	Mongolia, ~70 Mya (Late Cretaceous)	Omnivore	Thea’s log: Nemegt Formation’s long-necked runner foraged in river systems. A Cretaceous speedster!
Ornithomimus velox: "Bird mimic, swift"	Order: Saurischia, Suborder: Theropoda, Infraorder: Coelurosauria, Family: Ornithomimidae	~3.8 m long, like a small car	USA, ~75 Mya (Late Cretaceous)	Omnivore	Thea’s log: Denver Formation’s fast runner ate plants and insects in plains. A swift bird mimic!
Struthiomimus altus: "Ostrich mimic, tall"	Order: Saurischia, Suborder: Theropoda, Infraorder: Coelurosauria, Family: Ornithomimidae	~4 m long, like a small van	Canada, ~75 Mya (Late Cretaceous)	Omnivore	Thea’s log: Dinosaur Park Formation’s long-legged dinosaur fed opportunistically in floodplains. Tall and fast!
Deinocheirus mirificus: "Terrible hand"	Order: Saurischia, Suborder: Theropoda, Infraorder: Coelurosauria, Family: Deinocheiridae	~11.5 m long, like a school bus	Mongolia, ~70 Mya (Late Cretaceous)	Omnivore	Thea’s log: Nemegt Formation’s bizarre, hump-backed giant with huge arms ate plants and fish. A strange discovery!
Oviraptor philoceratops: "Egg thief, horn lover"	Order: Saurischia, Suborder: Theropoda, Infraorder: Coelurosauria, Maniraptoria, Family: Oviraptoridae	~2 m long, like a large dog	Mongolia, ~75 Mya (Late Cretaceous)	Omnivore	Thea’s log: Djadochta Formation’s beaked dinosaur, wrongly called an egg thief, ate plants and small prey. A misunderstood marvel!
Therizinosaurus cheloniformis: "Scythe lizard, turtle form"	Order: Saurischia, Suborder: Theropoda, Infraorder: Coelurosauria, Maniraptoria, Family: Therizinosauridae	~10 m long, like a school bus	Mongolia, ~70 Mya (Late Cretaceous)	Herbivore	Thea’s log: Nemegt Formation’s odd theropod with massive claws pulled down vegetation. A plant-eating predator!
Stenonychosaurus inequalis: "Narrow claw lizard"	Order: Saurischia, Suborder: Theropoda, Infraorder: Coelurosauria, Maniraptoria, Family: Saurornithoididae	~2 m long, like a large dog	Canada, ~75 Mya (Late Cretaceous)	Carnivore	Thea’s log: Dinosaur Park Formation’s brainy predator hunted with sharp claws and keen senses. A smart stalker!
Troodon formosus: "Wounding tooth"	Order: Saurischia, Suborder: Theropoda, Infraorder: Coelurosauria, Maniraptoria, Family: Saurornithoididae	~2.4 m long, like a small car	USA, ~75 Mya (Late Cretaceous)	Carnivore	Thea’s log: Two Medicine Formation’s smart, possibly nocturnal hunter preyed on small animals. A clever Cretaceous carnivore!
Bambiraptor feinbergi: "Bambi thief"	Order: Saurischia, Suborder: Theropoda, Infraorder: Coelurosauria, Maniraptoria, Family: Dromaeosauridae	~1 m long, like a small dog	USA, ~75 Mya (Late Cretaceous)	Carnivore	Thea’s log: Two Medicine Formation’s feathered raptor, named for its small size, hunted with deadly precision. A tiny terror!
Deinonychus antirrhopus: "Terrible claw"	Order: Saurischia, Suborder: Theropoda, Infraorder: Coelurosauria, Maniraptoria, Family: Dromaeosauridae	~3.4 m long, like a small car	USA, ~110 Mya (Early Cretaceous)	Carnivore	Thea’s log: Cloverly Formation’s pack hunter used sickle-shaped claws to tackle larger prey. A fierce team player!
Dromaeosaurus albertensis: "Running lizard"	Order: Saurischia, Suborder: Theropoda, Infraorder: Coelurosauria, Maniraptoria, Family: Dromaeosauridae	~2 m long, like a large dog	Canada, ~75 Mya (Late Cretaceous)	Carnivore	Thea’s log: Dinosaur Park Formation’s raptor had strong jaws for biting small dinosaurs. A swift predator!
Saurornitholestes sullivani: "Lizard-bird thief"	Order: Saurischia, Suborder: Theropoda, Infraorder: Coelurosauria, Maniraptoria, Family: Dromaeosauridae	~1.8 m long, like a large dog	USA, ~75 Mya (Late Cretaceous)	Carnivore	Thea’s log: Two Medicine Formation’s feathered raptor hunted small prey, a bird-like hunter!
Velociraptor osmolskae: "Swift thief"	Order: Saurischia, Suborder: Theropoda, Infraorder: Coelurosauria, Maniraptoria, Family: Dromaeosauridae	~2 m long, like a large dog	Mongolia, ~75 Mya (Late Cretaceous)	Carnivore	Thea’s log: Djadochta Formation’s desert dunes hosted this feathered predator, famous for its speed and sickle claws. A star hunter!
Archaeopteryx albersdoerferi: "Ancient wing"	Order: Saurischia, Suborder: Theropoda, Infraorder: Coelurosauria, Maniraptoria, Family: Archaeopterygidae	~0.5 m long, like a small bird	Germany, ~150 Mya (Late Jurassic)	Carnivore	Thea’s log: Solnhofen Limestone’s feathered fossils link dinosaurs to birds. It hunted insects in lagoon settings. A key discovery!
Ceratosaurus nasicornis: "Horned lizard, nose horn"	Order: Saurischia, Suborder: Theropoda, Infraorder: Ceratosauria, Family: Ceratosauridae	~6 m long, like a small bus	USA, ~150 Mya (Late Jurassic)	Carnivore	Thea’s log: Morrison Formation’s horned predator hunted with blade-like teeth in floodplains. A fierce Jurassic hunter!
Dilophosaurus wetherilli: "Two-crested lizard"	Order: Saurischia, Suborder: Theropoda, Infraorder: Ceratosauria, Family: Ceratosauridae	~7 m long, like a small bus	USA, ~190 Mya (Early Jurassic)	Carnivore	Thea’s log: Kayenta Formation’s crested hunter preyed on smaller dinosaurs by ancient rivers. A flashy predator!
Elaphrosaurus bambergi: "Lightweight lizard"	Order: Saurischia, Suborder: Theropoda, Infraorder: Ceratosauria, Family: Ceratosauridae	~6 m long, like a small bus	Tanzania, ~150 Mya (Late Jurassic)	Carnivore	Thea’s log: Tendaguru Formation’s slender, fast predator chased smaller prey in African plains. A speedy hunter!
Eustreptospondylus oxoniensis: "Well-curved vertebra"	Order: Saurischia, Suborder: Theropoda, Infraorder: Carnosauria, Family: Megalosauridae	~7 m long, like a small bus	England, ~160 Mya (Late Jurassic)	Carnivore	Thea’s log: Oxford Clay’s coastal predator tackled large prey near Jurassic shores. A powerful hunter!
Giganotosaurus carolinii: "Giant southern lizard"	Order: Saurischia, Suborder: Theropoda, Infraorder: Carnosauria, Family: Megalosauridae	~12–13 m long, like a large bus	Argentina, ~100 Mya (Early Cretaceous)	Carnivore	Thea’s log: Candeleros Formation’s massive predator, rivaling T. rex, hunted sauropods in South America. A colossal carnivore!
Poekilopleuron bucklandii: "Varied rib"	Order: Saurischia, Suborder: Theropoda, Infraorder: Carnosauria, Family: Megalosauridae	~7 m long, like a small bus	France, ~165 Mya (Middle Jurassic)	Carnivore	Thea’s log: Calcaire de Caen’s predator used strong jaws to take down prey in European forests. A Jurassic giant!
Proceratosaurus bradleyi: "Before horn lizard"	Order: Saurischia, Suborder: Theropoda, Infraorder: Carnosauria, Family: Megalosauridae	~3 m long, like a small car	England, ~165 Mya (Middle Jurassic)	Carnivore	Thea’s log: Great Oolite Group’s early tyrannosaur relative hunted small dinosaurs. A cunning predator!
Allosaurus europaeus: "Different lizard"	Order: Saurischia, Suborder: Theropoda, Infraorder: Carnosauria, Family: Allosauridae	~12 m long, like a large van	Portugal, USA, ~150 Mya (Late Jurassic)	Carnivore	Thea’s log: Lourinhã, Morrison Formation’s top predator hunted sauropods with powerful bites in floodplains. A Jurassic titan!
Yangchuanosaurus zigongensis: "Yangchuan lizard"	Order: Saurischia, Suborder: Theropoda, Infraorder: Carnosauria, Family: Allosauridae	~8 m long, like a large van	China, ~160 Mya (Late Jurassic)	Carnivore	Thea’s log: Shaximiao Formation’s Asian predator, like Allosaurus, hunted in forested floodplains. A fierce hunter!
Acrocanthosaurus atokensis: "High-spined lizard"	Order: Saurischia, Suborder: Theropoda, Infraorder: Carnosauria, Family: Spinosauridae	~11 m long, like a school bus	USA, ~110 Mya (Early Cretaceous)	Carnivore	Thea’s log: Antlers Formation’s sail-backed predator hunted large dinosaurs in North American plains. A towering terror!
Spinosaurus aegyptiacus: "Spine lizard, Egyptian"	Order: Saurischia, Suborder: Theropoda, Infraorder: Carnosauria, Family: Spinosauridae	~14–18 m long, like a double-decker bus	Egypt, Morocco, ~95 Mya (Late Cretaceous)	Carnivore/Piscivore	Thea’s log: Kem Kem Beds’ sail-backed giant fished and hunted in river systems. A prehistoric powerhouse!
Albertosaurus sarcophagus: "Alberta lizard, flesh-eater"	Order: Saurischia, Suborder: Theropoda, Infraorder: Carnosauria, Family: Tyrannosauridae	~9 m long, like a large van	Canada, ~70 Mya (Late Cretaceous)	Carnivore	Thea’s log: Horseshoe Canyon Formation’s T. rex cousin hunted hadrosaurs in floodplains. A fierce predator!
Alioramus altai: "Different branch"	Order: Saurischia, Suborder: Theropoda, Infraorder: Carnosauria, Family: Tyrannosauridae	~6 m long, like a small bus	Mongolia, ~70 Mya (Late Cretaceous)	Carnivore	Thea’s log: Nemegt Formation’s slender tyrannosaur hunted in Asian river systems. A unique hunter!
Daspletosaurus horneri: "Frightful lizard"	Order: Saurischia, Suborder: Theropoda, Infraorder: Carnosauria, Family: Tyrannosauridae	~9 m long, like a large van	USA, ~75 Mya (Late Cretaceous)	Carnivore	Thea’s log: Two Medicine Formation’s robust predator took on large herbivores. A fearsome beast!
Tarbosaurus bataar: "Alarming lizard, hero"	Order: Saurischia, Suborder: Theropoda, Infraorder: Carnosauria, Family: Tyrannosauridae	~10 m long, like a school bus	Mongolia, ~70 Mya (Late Cretaceous)	Carnivore	Thea’s log: Nemegt Formation’s Asian T. rex relative dominated river ecosystems. A mighty hunter!
Tyrannosaurus rex: "Tyrant lizard king"	Order: Saurischia, Suborder: Theropoda, Infraorder: Carnosauria, Family: Tyrannosauridae	~12–13 m long, like a large bus	USA, ~68 Mya (Late Cretaceous)	Carnivore	Thea’s log: Hell Creek Formation’s apex predator crushed bones with massive jaws. The king of dinosaurs!
Sauropodomorpha – The Gentle Giants
Herrerasaurus ischigualastensis: "Herrera’s lizard"	Order: Saurischia, Suborder: Sauropodomorpha, Infraorder: Prosauropoda, Family: Herrerasauridae	~4–6 m long, like a small bus	Argentina, ~230 Mya (Late Triassic)	Carnivore	Thea’s log: Ischigualasto Formation’s early dinosaur hunted smaller reptiles in arid plains. A Triassic pioneer!
Sanjuansaurus gordilloi: "San Juan lizard"	Order: Saurischia, Suborder: Sauropodomorpha, Infraorder: Prosauropoda, Family: Herrerasauridae	~3 m long, like a small car	Argentina, ~230 Mya (Late Triassic)	Carnivore	Thea’s log: Ischigualasto Formation’s smaller predator chased prey in Triassic landscapes. A swift hunter!
Smurfette (Smurfs (2025)): "Little blue female" (Fictional)	Order: Saurischia, Suborder: Sauropodomorpha, Infraorder: Prosauropoda, Family: Herrerasauridae	~0.19 m (7.5 inches), like a small doll (Fictional)	Belgium (Fictional), 2025 (Modern)	Omnivore (Fictional)	Thea’s log: Not a dinosaur! This Smurfs 2025 movie character, voiced by Rihanna, leads a magical adventure to rescue Papa Smurf. A modern mystery in our dino files!
Staurikosaurus pricei: "Southern cross lizard"	Order: Saurischia, Suborder: Sauropodomorpha, Infraorder: Prosauropoda, Family: Herrerasauridae	~2 m long, like a large dog	Brazil, ~230 Mya (Late Triassic)	Carnivore	Thea’s log: Santa Maria Formation’s early predator hunted small animals in Triassic forests. A southern star!
Anchisaurus polyzelus: "Near lizard"	Order: Saurischia, Suborder: Sauropodomorpha, Infraorder: Prosauropoda, Family: Anchisauridae	~2 m long, like a large dog	USA, ~190 Mya (Early Jurassic)	Herbivore	Thea’s log: Portland Formation’s small plant-eater, an early sauropodomorph grazed North America. A gentle pioneer!
Efraasia minor: "Efraasia, small"	Order: Saurischia, Suborder: Sauropodomorpha, Infraorder: Prosauropoda, Family: Anchisauridae	~2.5 m long, like a small car	Germany, ~210 Mya (Late Triassic)	Herbivore	Thea’s log: Löwenstein Formation’s early herbivore munched low vegetation in Triassic forests. A tiny titan!
Eoraptor lunensis: "Dawn thief"	Order: Saurischia, Suborder: Sauropodomorpha, Infraorder: Prosauropoda, Family: Anchisauridae	~1 m long, like a small dog	Argentina, ~230 Mya (Late Triassic)	Omnivore	Thea’s log: Ischigualasto Formation’s primitive dinosaur ate plants and small animals. An ancient adventurer!
Thecodontosaurus antiquus: "Socket-toothed lizard, ancient"	Order: Saurischia, Suborder: Sauropodomorpha, Infraorder: Prosauropoda, Family: Anchisauridae	~2.5 m long, like a small car	England, ~210 Mya (Late Triassic)	Herbivore	Thea’s log: Magnesian Conglomerate’s early plant-eater grazed Triassic woodlands. A prehistoric forager!
Massospondylus kaalae: "Longer vertebra"	Order: Saurischia, Suborder: Sauropodomorpha, Infraorder: Prosauropoda, Family: Plateosauridae	~4–6 m long, like a small bus	South Africa, ~190 Mya (Early Jurassic)	Herbivore	Thea’s log: Elliot Formation’s plant-eater roamed Jurassic plains, possibly rearing young in nests. A caring giant!
Mussaurus patagonicus: "Mouse lizard"	Order: Saurischia, Suborder: Sauropodomorpha, Infraorder: Prosauropoda, Family: Plateosauridae	~3 m long (juvenile), like a small car	Argentina, ~190 Mya (Early Jurassic)	Herbivore	Thea’s log: Laguna Colorada Formation’s juvenile fossils suggest larger adults grazed South America. A growing giant!
Plateosaurus gracilis: "Broad lizard, slender"	Order: Saurischia, Suborder: Sauropodomorpha, Infraorder: Prosauropoda, Family: Plateosauridae	~5–8 m long, like a large van	Germany, ~210 Mya (Late Triassic)	Herbivore	Thea’s log: Löwenstein Formation’s common plant-eater browsed high vegetation with its long neck. A Triassic titan!
Riojasaurus incertus: "Rioja lizard, uncertain"	Order: Saurischia, Suborder: Sauropodomorpha, Infraorder: Prosauropoda, Family: Melanorosauridae	~10 m long, like a school bus	Argentina, ~210 Mya (Late Triassic)	Herbivore	Thea’s log: Los Colorados Formation’s large herbivore, a step toward giant sauropods. A massive muncher!
Barapasaurus tagorei: "Big-legged lizard"	Order: Saurischia, Suborder: Sauropodomorpha, Infraorder: Sauropoda, Family: Cetiosauridae	~14 m long, like a large bus	India, ~190 Mya (Early Jurassic)	Herbivore	Thea’s log: Kota Formation’s early sauropod grazed high trees in Jurassic Asia. A towering plant-eater!
Cetiosaurus oxoniensis: "Whale lizard"	Order: Saurischia, Suborder: Sauropodomorpha, Infraorder: Sauropoda, Family: Cetiosauridae	~16 m long, like a double-decker bus	England, ~165 Mya (Middle Jurassic)	Herbivore	Thea’s log: Oxford Clay’s massive plant-eater roamed Jurassic Europe, feasting on ferns. A gentle giant!
Brachiosaurus altithorax: "Arm lizard, high chest"	Order: Saurischia, Suborder: Sauropodomorpha, Infraorder: Sauropoda, Family: Brachiosauridae	~25 m long, like a train carriage	USA, India, ~150 Mya (Late Jurassic)	Herbivore	Thea’s log: Morrison, Kota Formation’s towering giant reached treetops with its long neck. A skyscraping sauropod!
Sauroposeidon proteles: "Earthquake lizard, perfect"	Order: Saurischia, Suborder: Sauropodomorpha, Infraorder: Sauropoda, Family: Brachiosauridae	~28 m long, like a blue whale	USA, ~110 Mya (Early Cretaceous)	Herbivore	Thea’s log: Antlers Formation’s colossal sauropod browsed high vegetation. An earth-shaking giant!
Camarasaurus supremus: "Chambered lizard, supreme"	Order: Saurischia, Suborder: Sauropodomorpha, Infraorder: Sauropoda, Family: Camarasauridae	~18 m long, like a large bus	USA, ~150 Mya (Late Jurassic)	Herbivore	Thea’s log: Morrison Formation’s common sauropod chewed tough plants with its boxy skull. A sturdy giant!
Euhelopus zdanskyi: "Good marsh foot"	Order: Saurischia, Suborder: Sauropodomorpha, Infraorder: Sauropoda, Family: Camarasauridae	~15 m long, like a double-decker bus	China, ~120 Mya (Early Cretaceous)	Herbivore	Thea’s log: Mengyin Formation’s plant-eater thrived in Asian wetlands. A marsh-loving muncher!
Opisthocoelicaudia skarzynskii: "Rear hollow tail"	Order: Saurischia, Suborder: Sauropodomorpha, Infraorder: Sauropoda, Family: Camarasauridae	~12 m long, like a large van	Mongolia, ~70 Mya (Late Cretaceous)	Herbivore	Thea’s log: Nemegt Formation’s sauropod grazed in river systems with a unique tail structure. A mysterious giant!
Apatosaurus ajax: "Deceptive lizard"	Order: Saurischia, Suborder: Sauropodomorpha, Infraorder: Sauropoda, Family: Diplodocidae	~22 m long, like a train carriage	USA, ~150 Mya (Late Jurassic)	Herbivore	Thea’s log: Morrison Formation’s whip-tailed giant grazed floodplains with its long neck. A deceptive giant!
Dicraeosaurus sattleri: "Forked lizard"	Order: Saurischia, Suborder: Sauropodomorpha, Infraorder: Sauropoda, Family: Diplodocidae	~12 m long, like a large van	Tanzania, ~150 Mya (Late Jurassic)	Herbivore	Thea’s log: Tendaguru Formation’s smaller sauropod fed on low plants in African plains. A compact giant!
Diplodocus hallorum: "Double beam"	Order: Saurischia, Suborder: Sauropodomorpha, Infraorder: Sauropoda, Family: Diplodocidae	~29.5 m long, like a train carriage	USA, ~150 Mya (Late Jurassic)	Herbivore	Thea’s log: Morrison Formation’s long-tailed sauropod may have used its whip-like tail as a weapon. A lengthy legend!
Mamenchisaurus sinocanadorum: "Mamenchi lizard"	Order: Saurischia, Suborder: Sauropodomorpha, Infraorder: Sauropoda, Family: Diplodocidae	~26 m long, like a blue whale	China, ~160 Mya (Late Jurassic)	Herbivore	Thea’s log: Shaximiao Formation’s long-necked giant reached high trees in Asian forests. A towering titan!
Supersaurus vivianae: "Super lizard"	Order: Saurischia, Suborder: Sauropodomorpha, Infraorder: Sauropoda, Family: Diplodocidae	~34 m long, like a train	USA, ~150 Mya (Late Jurassic)	Herbivore	Thea’s log: Morrison Formation’s enormous sauropod, one of the longest dinosaurs known. A super-sized star!
Alamosaurus sanjuanensis: "Alamo lizard"	Order: Saurischia, Suborder: Sauropodomorpha, Infraorder: Sauropoda, Family: Titanosauridae	~20 m long, like a large bus	USA, ~70 Mya (Late Cretaceous)	Herbivore	Thea’s log: Javelina Formation’s massive titanosaur roamed North American plains. A colossal grazer!
Dreadnoughtus schrani: "Fears nothing"	Order: Saurischia, Suborder: Sauropodomorpha, Infraorder: Sauropoda, Family: Titanosauridae	~26 m long, like a blue whale	Argentina, ~80 Mya (Late Cretaceous)	Herbivore	Thea’s log: Cerro Fortaleza Formation’s giant, one of the heaviest dinosaurs, grazed South America. A fearless feeder!
Saltasaurus loricatus: "Salta lizard, armored"	Order: Saurischia, Suborder: Sauropodomorpha, Infraorder: Sauropoda, Family: Titanosauridae	~12 m long, like a large van	Argentina, ~70 Mya (Late Cretaceous)	Herbivore	Thea’s log: Lecho Formation’s armored titanosaur, its bony plates offered protection. A shielded giant!
Cerapoda – Beaked, Horned, and Armored
Lesothosaurus diagnosticus: "Lesotho lizard"	Order: Ornithischia, Suborder: Cerapoda, Infraorder: Ornithopoda, Family: Fabrosauridae	~1 m long, like a small dog	Lesotho, ~190 Mya (Early Jurassic)	Herbivore	Thea’s log: Elliot Formation’s small, agile plant-eater darted through African forests. A speedy grazer!
Scutellosaurus lawleri: "Little shield lizard"	Order: Ornithischia, Suborder: Cerapoda, Infraorder: Ornithopoda, Family: Fabrosauridae	~1.2 m long, like a large dog	USA, ~190 Mya (Early Jurassic)	Herbivore	Thea’s log: Kayenta Formation’s armored ornithopod had bony plates for early defense. A shielded sprinter!
Echinodon becklesii: "Spiny tooth"	Order: Ornithischia, Suborder: Cerapoda, Infraorder: Ornithopoda, Family: Heterodontosauridae	~0.6 m long, like a small cat	England, ~140 Mya (Early Cretaceous)	Herbivore	Thea’s log: Purbeck Group’s tiny plant-eater, its varied teeth suggest a mixed diet. A spiky surprise!
Heterodontosaurus tucki: "Different-toothed lizard"	Order: Ornithischia, Suborder: Cerapoda, Infraorder: Ornithopoda, Family: Heterodontosauridae	~1.2 m long, like a large dog	South Africa, ~190 Mya (Early Jurassic)	Herbivore	Thea’s log: Elliot Formation’s small dinosaur, its tusks may have been for display or defense. A toothy treasure!
Pisanosaurus mertii: "Pisano’s lizard"	Order: Ornithischia, Suborder: Cerapoda, Infraorder: Ornithopoda, Family: Heterodontosauridae	~1 m long, like a small dog	Argentina, ~230 Mya (Late Triassic)	Herbivore	Thea’s log: Ischigualasto Formation’s early ornithischian grazed in Triassic plains. An ancient herbivore!
Callovosaurus leedsi: "Callovian lizard"	Order: Ornithischia, Suborder: Cerapoda, Infraorder: Ornithopoda, Family: Hypsilophodontidae	~2.5 m long, like a small car	England, ~165 Mya (Middle Jurassic)	Herbivore	Thea’s log: Oxford Clay’s fast plant-eater roamed European forests. A Jurassic jogger!
Dryosaurus elderae: "Oak lizard"	Order: Ornithischia, Suborder: Cerapoda, Infraorder: Ornithopoda, Family: Hypsilophodontidae	~3 m long, like a small car	USA, ~150 Mya (Late Jurassic)	Herbivore	Thea’s log: Morrison Formation’s agile herbivore fled predators in floodplains. A speedy plant-eater!
Hypsilophodon foxii: "High-ridge tooth"	Order: Ornithischia, Suborder: Cerapoda, Infraorder: Ornithopoda, Family: Hypsilophodontidae	~2 m long, like a large dog	England, ~125 Mya (Early Cretaceous)	Herbivore	Thea’s log: Wessex Formation’s speedy plant-eater darted through Cretaceous forests. A nimble nibbler!
Nanosaurus agilis: "Dwarf lizard, agile"	Order: Ornithischia, Suborder: Cerapoda, Infraorder: Ornithopoda, Family: Hypsilophodontidae	~2 m long, like a large dog	USA, ~150 Mya (Late Jurassic)	Herbivore	Thea’s log: Morrison Formation’s small herbivore grazed in North American plains. A tiny trailblazer!
Parksosaurus warreni: "Park’s lizard"	Order: Ornithischia, Suborder: Cerapoda, Infraorder: Ornithopoda, Family: Hypsilophodontidae	~2.5 m long, like a small car	Canada, ~70 Mya (Late Cretaceous)	Herbivore	Thea’s log: Horseshoe Canyon Formation’s fast runner fed in Late Cretaceous floodplains. A speedy survivor!
Thescelosaurus garbanii: "Marvelous lizard"	Order: Ornithischia, Suborder: Cerapoda, Infraorder: Ornithopoda, Family: Hypsilophodontidae	~3.5 m long, like a small car	USA, ~70 Mya (Late Cretaceous)	Herbivore	Thea’s log: Hell Creek Formation’s sturdy plant-eater thrived in diverse ecosystems. A marvelous muncher!
Camptosaurus dispar: "Flexible lizard"	Order: Ornithischia, Suborder: Cerapoda, Infraorder: Ornithopoda, Family: Iguanodontidae	~6 m long, like a small bus	USA, ~150 Mya (Late Jurassic)	Herbivore	Thea’s log: Morrison Formation’s early iguanodont grazed floodplains with strong jaws. A flexible feeder!
Iguanodon bernissartensis: "Iguana tooth"	Order: Ornithischia, Suborder: Cerapoda, Infraorder: Ornithopoda, Family: Iguanodontidae	~12 m long, like a large van	Belgium, ~125 Mya (Early Cretaceous)	Herbivore	Thea’s log: Wealden Group’s large plant-eater, its thumb spikes may have been for defense. A spiky giant!
Mantellisaurus atherfieldensis: "Mantell’s lizard"	Order: Ornithischia, Suborder: Cerapoda, Infraorder: Ornithopoda, Family: Iguanodontidae	~7 m long, like a small bus	England, ~125 Mya (Early Cretaceous)	Herbivore	Thea’s log: Wealden Group’s agile herbivore roamed European forests. A nimble grazer!
Muttaburrasaurus langdoni: "Muttaburra lizard"	Order: Ornithischia, Suborder: Cerapoda, Infraorder: Ornithopoda, Family: Iguanodontidae	~8 m long, like a large van	Australia, ~100 Mya (Early Cretaceous)	Herbivore	Thea’s log: Allaru Mudstone’s plant-eater may have had a nasal crest for calls. A vocal veggie-eater!
Ouranosaurus nigeriensis: "Brave lizard, Niger"	Order: Ornithischia, Suborder: Cerapoda, Infraorder: Ornithopoda, Family: Iguanodontidae	~8 m long, like a large van	Niger, ~110 Mya (Early Cretaceous)	Herbivore	Thea’s log: Elrhaz Formation’s sail-backed herbivore grazed in African river systems. A bold browser!
Probactrosaurus gobiensis: "Before horned lizard"	Order: Ornithischia, Suborder: Cerapoda, Infraorder: Ornithopoda, Family: Iguanodontidae	~6 m long, like a small bus	China, ~100 Mya (Early Cretaceous)	Herbivore	Thea’s log: Dashuigou Formation’s early hadrosaur relative fed in Asian plains. A prehistoric pioneer!
Tenontosaurus dossi: "Sinew lizard"	Order: Ornithischia, Suborder: Cerapoda, Infraorder: Ornithopoda, Family: Iguanodontidae	~7 m long, like a small bus	USA, ~110 Mya (Early Cretaceous)	Herbivore	Thea’s log: Cloverly Formation’s sturdy plant-eater, often prey for Deinonychus. A tough grazer!
Bactrosaurus johnsoni: "Club lizard"	Order: Ornithischia, Suborder: Cerapoda, Infraorder: Ornithopoda, Family: Hadrosauridae (Saurolophinae)	~6 m long, like a small bus	China, ~95 Mya (Late Cretaceous)	Herbivore	Thea’s log: Iren Dabasu Formation’s early hadrosaur grazed Asian plains. A duck-billed delight!
Edmontosaurus regalis: "Edmonton lizard, royal"	Order: Ornithischia, Suborder: Cerapoda, Infraorder: Ornithopoda, Family: Hadrosauridae (Saurolophinae)	~9 m long, like a large van	Canada, ~70 Mya (Late Cretaceous)	Herbivore	Thea’s log: Horseshoe Canyon Formation’s duck-billed dinosaur grazed in herds. A royal roamer!
Hadrosaurus foulkii: "Bulky lizard"	Order: Ornithischia, Suborder: Cerapoda, Infraorder: Ornithopoda, Family: Hadrosauridae (Saurolophinae)	~8 m long, like a large van	USA, ~80 Mya (Late Cretaceous)	Herbivore	Thea’s log: Woodbury Formation’s early hadrosaur fed in coastal plains. A bulky browser!
Kritosaurus navajovius: "Separated lizard"	Order: Ornithischia, Suborder: Cerapoda, Infraorder: Ornithopoda, Family: Hadrosauridae (Saurolophinae)	~9 m long, like a large van	USA, ~75 Mya (Late Cretaceous)	Herbivore	Thea’s log: Kirtland Formation’s duck-bill grazed North American plains. A herd hero!
Maiasaura peeblesorum: "Good mother lizard"	Order: Ornithischia, Suborder: Cerapoda, Infraorder: Ornithopoda, Family: Hadrosauridae (Saurolophinae)	~9 m long, like a large van	USA, ~75 Mya (Late Cretaceous)	Herbivore	Thea’s log: Two Medicine Formation’s nurturing hadrosaur cared for young in nests. A loving legend!
Prosaurolophus maximus: "Before crested lizard"	Order: Ornithischia, Suborder: Cerapoda, Infraorder: Ornithopoda, Family: Hadrosauridae (Saurolophinae)	~9 m long, like a large van	Canada, ~75 Mya (Late Cretaceous)	Herbivore	Thea’s log: Dinosaur Park Formation’s duck-bill lived in large herds. A social superstar!
Saurolophus osborni: "Crested lizard"	Order: Ornithischia, Suborder: Cerapoda, Infraorder: Ornithopoda, Family: Hadrosauridae (Saurolophinae)	~9 m long, like a large van	Canada, ~70 Mya (Late Cretaceous)	Herbivore	Thea’s log: Horseshoe Canyon Formation’s crested hadrosaur grazed in floodplains. A crested champion!
Shantungosaurus giganteus: "Shandong lizard, giant"	Order: Ornithischia, Suborder: Cerapoda, Infraorder: Ornithopoda, Family: Hadrosauridae (Saurolophinae)	~15 m long, like a double-decker bus	China, ~75 Mya (Late Cretaceous)	Herbivore	Thea’s log: Xingezhuang Formation’s massive hadrosaur, one of the largest duck-bills. A giant grazer!
Corythosaurus casuarius: "Helmet lizard"	Order: Ornithischia, Suborder: Cerapoda, Infraorder: Ornithopoda, Family: Hadrosauridae (Lambeosaurinae)	~9 m long, like a large van	Canada, ~75 Mya (Late Cretaceous)	Herbivore	Thea’s log: Dinosaur Park Formation’s crested hadrosaur, its crest may have amplified calls. A vocal virtuoso!
Hypacrosaurus stebingeri: "Near highest lizard"	Order: Ornithischia, Suborder: Cerapoda, Infraorder: Ornithopoda, Family: Hadrosauridae (Lambeosaurinae)	~9 m long, like a large van	USA, ~75 Mya (Late Cretaceous)	Herbivore	Thea’s log: Two Medicine Formation’s crested hadrosaur lived in North American plains. A high-flying herbivore!
Lambeosaurus magnicristatus: "Lambe’s lizard, large crest"	Order: Ornithischia, Suborder: Cerapoda, Infraorder: Ornithopoda, Family: Hadrosauridae (Lambeosaurinae)	~9 m long, like a large van	Canada, ~75 Mya (Late Cretaceous)	Herbivore	Thea’s log: Dinosaur Park Formation’s crested hadrosaur, its large crest was for display. A flashy feeder!
Olorotitan arharensis: "Swan giant"	Order: Ornithischia, Suborder: Cerapoda, Infraorder: Ornithopoda, Family: Hadrosauridae (Lambeosaurinae)	~8 m long, like a large van	Russia, ~70 Mya (Late Cretaceous)	Herbivore	Thea’s log: Udurchukan Formation’s crested hadrosaur grazed in Asian plains. A graceful giant!
Parasaurolophus walkeri: "Near crested lizard"	Order: Ornithischia, Suborder: Cerapoda, Infraorder: Ornithopoda, Family: Hadrosauridae (Lambeosaurinae)	~10.3 m long, like a large van	Canada, ~75 Mya (Late Cretaceous)	Herbivore	Thea’s log: Dinosaur Park Formation’s tube-crested hadrosaur produced loud calls. A musical marvel!
Tsintaosaurus spinorhinus: "Qingdao lizard, spine nose"	Order: Ornithischia, Suborder: Cerapoda, Infraorder: Ornithopoda, Family: Hadrosauridae (Lambeosaurinae)	~8 m long, like a large van	China, ~75 Mya (Late Cretaceous)	Herbivore	Thea’s log: Jingangkou Formation’s crested hadrosaur thrived in Asian ecosystems. A spiky singer!
Homalocephale calathocercos: "Level head, horned tail"	Order: Ornithischia, Suborder: Cerapoda, Infraorder: Ceratopia, Family: Pachycephalosauridae	~2 m long, like a large dog	Mongolia, ~70 Mya (Late Cretaceous)	Herbivore	Thea’s log: Nemegt Formation’s dome-headed dinosaur may have head-butted rivals. A tough competitor!
Pachycephalosaurus wyomingensis: "Thick-headed lizard"	Order: Ornithischia, Suborder: Cerapoda, Infraorder: Ceratopia, Family: Pachycephalosauridae	~4.5 m long, like a small car	USA, ~70 Mya (Late Cretaceous)	Herbivore	Thea’s log: Hell Creek Formation’s thick-skulled dinosaur likely used its dome for combat. A headstrong herbivore!
Prenocephale prenes: "Sloping head"	Order: Ornithischia, Suborder: Cerapoda, Infraorder: Ceratopia, Family: Pachycephalosauridae	~2 m long, like a large dog	Mongolia, ~70 Mya (Late Cretaceous)	Herbivore	Thea’s log: Nemegt Formation’s dome-headed dinosaur roamed Asian river systems. A sloped-skull star!
Stegoceras validum: "Roof horn, strong"	Order: Ornithischia, Suborder: Cerapoda, Infraorder: Ceratopia, Family: Pachycephalosauridae	~2 m long, like a large dog	Canada, ~75 Mya (Late Cretaceous)	Herbivore	Thea’s log: Dinosaur Park Formation’s small pachycephalosaur likely head-butted competitors. A sturdy striker!
Psittacosaurus meileyingensis: "Parrot lizard"	Order: Ornithischia, Suborder: Cerapoda, Infraorder: Ceratopia, Family: Psittacosauridae	~2 m long, like a large dog	China, ~120 Mya (Early Cretaceous)	Herbivore	Thea’s log: Yixian Formation’s beaked dinosaur munched plants with parrot-like jaws. A feathered friend!
Bagaceratops rozhdestvenskyi: "Small horned face"	Order: Ornithischia, Suborder: Cerapoda, Infraorder: Ceratopia, Family: Protoceratopidae	~1.8 m long, like a large dog	Mongolia, ~80 Mya (Late Cretaceous)	Herbivore	Thea’s log: Barun Goyot Formation’s small ceratopsian grazed in desert environments. A tiny titan!
Leptoceratops gracilis: "Slender horned face"	Order: Ornithischia, Suborder: Cerapoda, Infraorder: Ceratopia, Family: Protoceratopidae	~2 m long, like a large dog	USA, ~70 Mya (Late Cretaceous)	Herbivore	Thea’s log: Hell Creek Formation’s small ceratopsian fed in North American plains. A slender survivor!
Microceratus gobiensis: "Tiny horned"	Order: Ornithischia, Suborder: Cerapoda, Infraorder: Ceratopia, Family: Protoceratopidae	~0.6 m long, like a small cat	Mongolia, ~80 Mya (Late Cretaceous)	Herbivore	Thea’s log: Minhe Formation’s tiny ceratopsian darted through Asian plains. A pint-sized plant-eater!
Montanoceratops cerorhynchus: "Montana horned face"	Order: Ornithischia, Suborder: Cerapoda, Infraorder: Ceratopia, Family: Protoceratopidae	~2.5 m long, like a small car	USA, ~70 Mya (Late Cretaceous)	Herbivore	Thea’s log: St. Mary River Formation’s small ceratopsian grazed in North America. A mountain muncher!
Protoceratops hellenikorhinus: "First horned face"	Order: Ornithischia, Suborder: Cerapoda, Infraorder: Ceratopia, Family: Protoceratopidae	~2 m long, like a large dog	Mongolia, ~75 Mya (Late Cretaceous)	Herbivore	Thea’s log: Djadochta Formation’s early ceratopsian lived in desert ecosystems. A prehistoric pioneer!
Anchiceratops ornatus: "Near horned face, ornate"	Order: Ornithischia, Suborder: Cerapoda, Infraorder: Ceratopia, Family: Ceratopidae (long-frilled)	~5 m long, like a small car	Canada, ~70 Mya (Late Cretaceous)	Herbivore	Thea’s log: Horseshoe Canyon Formation’s frilled ceratopsian, its horns were for display. An ornate herbivore!
Arrhinoceratops brachyops: "No nose horn face"	Order: Ornithischia, Suborder: Cerapoda, Infraorder: Ceratopia, Family: Ceratopidae (long-frilled)	~6 m long, like a small bus	Canada, ~70 Mya (Late Cretaceous)	Herbivore	Thea’s log: Horseshoe Canyon Formation’s frilled ceratopsian grazed in floodplains. A hornless hero!
Chasmosaurus belli: "Opening lizard, beautiful"	Order: Ornithischia, Suborder: Cerapoda, Infraorder: Ceratopia, Family: Ceratopidae (long-frilled)	~5 m long, like a small car	Canada, ~75 Mya (Late Cretaceous)	Herbivore	Thea’s log: Dinosaur Park Formation’s large-frilled ceratopsian used its frill for display. A beautiful beast!
Pentaceratops sternbergii: "Five-horned face"	Order: Ornithischia, Suborder: Cerapoda, Infraorder: Ceratopia, Family: Ceratopidae (long-frilled)	~6 m long, like a small bus	USA, ~75 Mya (Late Cretaceous)	Herbivore	Thea’s log: Kirtland Formation’s ornate ceratopsian, its large frill was for show. A five-horned marvel!
Torosaurus latus: "Perforated lizard, wide"	Order: Ornithischia, Suborder: Cerapoda, Infraorder: Ceratopia, Family: Ceratopidae (long-frilled)	~8 m long, like a large van	USA, ~70 Mya (Late Cretaceous)	Herbivore	Thea’s log: Hell Creek Formation’s huge-frilled ceratopsian grazed North American plains. A wide-ranging warrior!
Triceratops horridus: "Three-horned face, rough"	Order: Ornithischia, Suborder: Cerapoda, Infraorder: Ceratopia, Family: Ceratopidae (long-frilled)	~9 m long, like a large van	USA, ~68 Mya (Late Cretaceous)	Herbivore	Thea’s log: Hell Creek Formation’s iconic ceratopsian fended off T. rex with horns and frill. A three-horned titan!
Centrosaurus apertus: "Pointed lizard, open"	Order: Ornithischia, Suborder: Cerapoda, Infraorder: Ceratopia, Family: Ceratopidae (short-frilled)	~6 m long, like a small bus	Canada, ~75 Mya (Late Cretaceous)	Herbivore	Thea’s log: Dinosaur Park Formation’s horned dinosaur lived in herds with a nasal horn. A pointed protector!
Nasutoceratops titusi: "Big-nosed horned face"	Order: Ornithischia, Suborder: Cerapoda, Infraorder: Ceratopia, Family: Ceratopidae (short-frilled)	~5 m long, like a small car	USA, ~75 Mya (Late Cretaceous)	Herbivore	Thea’s log: Kaiparowits Formation’s unique ceratopsian, its bull-like horns were distinctive. A big-nosed battler!
Pachyrhinosaurus lakustai: "Thick-nosed lizard"	Order: Ornithischia, Suborder: Cerapoda, Infraorder: Ceratopia, Family: Ceratopidae (short-frilled)	~6 m long, like a small bus	Canada, ~70 Mya (Late Cretaceous)	Herbivore	Thea’s log: Horseshoe Canyon Formation’s boss-nosed ceratopsian grazed in herds. A thick-nosed titan!
Styracosaurus ovatus: "Spiked lizard"	Order: Ornithischia, Suborder: Cerapoda, Infraorder: Ceratopia, Family: Ceratopidae (short-frilled)	~5 m long, like a small car	Canada, ~75 Mya (Late Cretaceous)	Herbivore	Thea’s log: Dinosaur Park Formation’s spiky-frilled ceratopsian, its horns were for display. A spiky spectacle!
Thyreophora – The Armored Tanks
Huayangosaurus taibaii: "Huayang lizard"	Order: Ornithischia, Suborder: Thyreophora, Infraorder: Stegosauria, Family: Huayangosauridae	~4 m long, like a small car	China, ~165 Mya (Middle Jurassic)	Herbivore	Thea’s log: Shaximiao Formation’s early stegosaur, its plates and spikes offered defense. An armored adventurer!
Tuojiangosaurus multispinus: "Tuo River lizard, many spines"	Order: Ornithischia, Suborder: Thyreophora, Infraorder: Stegosauria, Family: Huayangosauridae	~7 m long, like a small bus	China, ~160 Mya (Late Jurassic)	Herbivore	Thea’s log: Shaximiao Formation’s plated dinosaur grazed Asian forests with tail spikes. A spiny survivor!
Kentrosaurus aethiopicus: "Spiked lizard, African"	Order: Ornithischia, Suborder: Thyreophora, Infraorder: Stegosauria, Family: Stegosauridae	~4.5 m long, like a small car	Tanzania, ~150 Mya (Late Jurassic)	Herbivore	Thea’s log: Tendaguru Formation’s spiky stegosaur defended itself with tail spikes. An African armored star!
Stegosaurus stenops: "Roof lizard, narrow"	Order: Ornithischia, Suborder: Thyreophora, Infraorder: Stegosauria, Family: Stegosauridae	~9.6 m long, like a large van	USA, ~150 Mya (Late Jurassic)	Herbivore	Thea’s log: Morrison Formation’s iconic stegosaur, its plates may have been for display. A plated powerhouse!
Wuerhosaurus ordosensis: "Wuerho lizard"	Order: Ornithischia, Suborder: Thyreophora, Infraorder: Stegosauria, Family: Stegosauridae	~7 m long, like a small bus	China, ~120 Mya (Early Cretaceous)	Herbivore	Thea’s log: Ejinhoro Formation’s late stegosaur grazed in Asian plains. A lasting legend!
Scelidosaurus harrisonii: "Limb lizard"	Order: Ornithischia, Suborder: Thyreophora, Infraorder: Ankylosauria, Family: Scelidosauridae	~4 m long, like a small car	England, ~190 Mya (Early Jurassic)	Herbivore	Thea’s log: Charmouth Mudstone’s early armored dinosaur had bony scutes for protection. An early tank!
Hylaeosaurus armatus: "Forest lizard, armored"	Order: Ornithischia, Suborder: Thyreophora, Infraorder: Ankylosauria, Family: Nodosauridae	~5 m long, like a small car	England, ~130 Mya (Early Cretaceous)	Herbivore	Thea’s log: Wealden Group’s armored dinosaur grazed in European forests. A forest fortress!
Nodosaurus textilis: "Knobbed lizard"	Order: Ornithischia, Suborder: Thyreophora, Infraorder: Ankylosauria, Family: Nodosauridae	~6 m long, like a small bus	USA, ~80 Mya (Late Cretaceous)	Herbivore	Thea’s log: Frontier Formation’s nodosaur, its armor protected it from predators. A knobbed knight!
Panoplosaurus mirus: "Fully armored lizard, wonderful"	Order: Ornithischia, Suborder: Thyreophora, Infraorder: Ankylosauria, Family: Nodosauridae	~5 m long, like a small car	Canada, ~75 Mya (Late Cretaceous)	Herbivore	Thea’s log: Dinosaur Park Formation’s heavily armored nodosaur grazed in floodplains. A wonderful warrior!
Polacanthus foxii: "Many spines"	Order: Ornithischia, Suborder: Thyreophora, Infraorder: Ankylosauria, Family: Nodosauridae	~5 m long, like a small car	England, ~125 Mya (Early Cretaceous)	Herbivore	Thea’s log: Wessex Formation’s spiky nodosaur defended itself in European forests. A spiny sentinel!
Sauropelta edwardsorum: "Lizard shield"	Order: Ornithischia, Suborder: Thyreophora, Infraorder: Ankylosauria, Family: Nodosauridae	~5 m long, like a small car	USA, ~110 Mya (Early Cretaceous)	Herbivore	Thea’s log: Cloverly Formation’s armored nodosaur grazed in North American plains. A shielded survivor!
Silvisaurus condrayi: "Forest lizard"	Order: Ornithischia, Suborder: Thyreophora, Infraorder: Ankylosauria, Family: Nodosauridae	~4 m long, like a small car	USA, ~100 Mya (Early Cretaceous)	Herbivore	Thea’s log: Dakota Formation’s armored dinosaur lived in forested plains. A forest fortress!
Struthiosaurus transylvanicus: "Ostrich lizard, Transylvanian"	Order: Ornithischia, Suborder: Thyreophora, Infraorder: Ankylosauria, Family: Nodosauridae	~4 m long, like a small car	Romania, ~70 Mya (Late Cretaceous)	Herbivore	Thea’s log: Sânpetru Formation’s small nodosaur grazed in European islands. A Transylvanian tank!
Ankylosaurus magniventris: "Fused lizard, large belly"	Order: Ornithischia, Suborder: Thyreophora, Infraorder: Ankylosauria, Family: Ankylosauridae	~6–11 m long, like a large van	USA, ~68 Mya (Late Cretaceous)	Herbivore	Thea’s log: Hell Creek Formation’s tank-like dinosaur, its tail club smashed predators. An armored avenger!
Euoplocephalus tutus: "Well-armored head"	Order: Ornithischia, Suborder: Thyreophora, Infraorder: Ankylosauria, Family: Ankylosauridae	~6 m long, like a small bus	Canada, ~75 Mya (Late Cretaceous)	Herbivore	Thea’s log: Dinosaur Park Formation’s armored giant used its club for defense. A headstrong hero!
Saichania chulsanensis: "Beautiful one"	Order: Ornithischia, Suborder: Thyreophora, Infraorder: Ankylosauria, Family: Ankylosauridae	~6 m long, like a small bus	Mongolia, ~70 Mya (Late Cretaceous)	Herbivore	Thea’s log: Barun Goyot Formation’s desert-dwelling ankylosaur, heavily armored. A beautiful battler!
Talarurus plicatospineus: "Basket tail, folded spine"	Order: Ornithischia, Suborder: Thyreophora, Infraorder: Ankylosauria, Family: Ankylosauridae	~5 m long, like a small car	Mongolia, ~75 Mya (Late Cretaceous)	Herbivore	Thea’s log: Bayan Shireh Formation’s armored dinosaur, its tail club was a weapon. A spiky superstar!

Pterosauria Chart Tables – Lords of the Ancient Skies

Narrated by Annemarie Blanco as Teodora Villavicencio

¡Órale, amigos! It’s Teodora Villavicencio, soaring through the Mesozoic skies with the pterosaurs—Lords of the Ancient Skies! These winged wonders ruled the air, from tiny Anurognathus snatching bugs to massive Quetzalcoatlus gliding like a feathered airplane. With leathery wings and sharp beaks, they hunted fish, insects, and maybe even small dinos. From Triassic cliffs to Cretaceous coasts, these flyers were the ultimate sky bosses. Check the tables below for the full scoop on these epic aviators!

Clade: Pterosauria, Suborder: Rhamphorhynchoidea

Family: Dimorphodontidae

Name	Name Means	Classification	Size Comparison	Place	Diet	Details	Time	Locality	Formation	Geographical	Geological	Status (2025)
Caelestiventus hanseni	“Heavenly Wind”	Order: Pterosauria, Suborder: Rhamphorhynchoidea, Family: Dimorphodontidae	Wingspan: ~1.5 m (5 ft), Body Length: ~0.6 m (2 ft), Weight: ~1–2 kg (2.2–4.4 lbs)	North America, USA (Utah)	Insectivore	Early pterosaur; desert-adapted; sharp teeth for catching insects	Late Triassic, Norian (~210 Ma)	Saints & Sinners Quarry	Chinle Formation	Western North America	Late Triassic, Norian	Well-accepted; one of oldest known pterosaurs
Dimorphodon macronyx	“Two-Form Tooth”	Order: Pterosauria, Suborder: Rhamphorhynchoidea, Family: Dimorphodontidae	Wingspan: ~1.4 m (4.6 ft), Body Length: ~1 m (3.3 ft), Weight: ~2–3 kg (4.4–6.6 lbs)	Europe, England	Insectivore/Piscivore	Large head, varied teeth; likely hunted insects and small fish; coastal flyer	Early Jurassic, Sinemurian (~190 Ma)	Lyme Regis	Blue Lias Formation	Western Europe	Early Jurassic, Sinemurian	Well-accepted; iconic early pterosaur

Family: Eudimorphodontidae

Name	Name Means	Classification	Size Comparison	Place	Diet	Details	Time	Locality	Formation	Geographical	Geological	Status (2025)
Eudimorphodon ranzii	“True Two-Form Tooth”	Order: Pterosauria, Suborder: Rhamphorhynchoidea, Family: Eudimorphodontidae	Wingspan: ~1 m (3.3 ft), Body Length: ~0.7 m (2.3 ft), Weight: ~1–2 kg (2.2–4.4 lbs)	Europe, Italy	Piscivore	Needle-like teeth for catching fish; early pterosaur; lived near coasts	Late Triassic, Norian (~210 Ma)	Cene	Zorzino Limestone	Southern Europe	Late Triassic, Norian	Well-accepted; one of earliest fish-eating pterosaurs

Family: Rhamphorhynchidae

Name	Name Means	Classification	Size Comparison	Place	Diet	Details	Time	Locality	Formation	Geographical	Geological	Status (2025)
Anurognathus ammoni	“No-Jaw Mouth”	Order: Pterosauria, Suborder: Rhamphorhynchoidea, Family: Rhamphorhynchidae	Wingspan: ~0.5 m (1.6 ft), Body Length: ~0.1 m (0.3 ft), Weight: ~0.1–0.5 kg (0.2–1.1 lbs)	Europe, Germany	Insectivore	Tiny, bat-like; large eyes for night hunting; likely caught insects in flight	Late Jurassic, Tithonian (~150 Ma)	Solnhofen	Solnhofen Limestone	Central Europe	Late Jurassic, Tithonian	Well-accepted; specialized insectivore
Dorygnathus banthensis	“Spear Jaw”	Order: Pterosauria, Suborder: Rhamphorhynchoidea, Family: Rhamphorhynchidae	Wingspan: ~1.5 m (5 ft), Body Length: ~1 m (3.3 ft), Weight: ~2–3 kg (4.4–6.6 lbs)	Europe, Germany	Piscivore	Long beak, sharp teeth; fished along coasts; agile flyer	Early Jurassic, Toarcian (~180 Ma)	Holzmaden	Posidonia Shale	Central Europe	Early Jurassic, Toarcian	Well-accepted; common Jurassic pterosaur
Rhamphorhynchus etches	“Beak Snout”	Order: Pterosauria, Suborder: Rhamphorhynchoidea, Family: Rhamphorhynchidae	Wingspan: ~1.8 m (5.9 ft), Body Length: ~1.2 m (4 ft), Weight: ~3–5 kg (6.6–11 lbs)	Europe, England	Piscivore	Long tail, needle-like teeth; skimmed water for fish; well-preserved fossils	Late Jurassic, Kimmeridgian (~155 Ma)	Kimmeridge	Kimmeridge Clay	Western Europe	Late Jurassic, Kimmeridgian	Recently named (2020); valid, but debated due to similarity to R. muensteri
Scaphognathus crassirostris	“Boat Jaw”	Order: Pterosauria, Suborder: Rhamphorhynchoidea, Family: Rhamphorhynchidae	Wingspan: ~1 m (3.3 ft), Body Length: ~0.7 m (2.3 ft), Weight: ~1–2 kg (2.2–4.4 lbs)	Europe, Germany	Piscivore	Broad beak, likely fished in coastal waters; robust skull	Late Jurassic, Tithonian (~150 Ma)	Solnhofen	Solnhofen Limestone	Central Europe	Late Jurassic, Tithonian	Well-accepted; distinct from Rhamphorhynchus
Sordes pilosus	“Hairy Devil”	Order: Pterosauria, Suborder: Rhamphorhynchoidea, Family: Rhamphorhynchidae	Wingspan: ~0.6 m (2 ft), Body Length: ~0.4 m (1.3 ft), Weight: ~0.5–1 kg (1.1–2.2 lbs)	Asia, Kazakhstan	Piscivore/Insectivore	Hairy membrane; likely caught fish and insects; small, agile flyer	Late Jurassic, Oxfordian (~160 Ma)	Karabastau	Karabastau Formation	Central Asia	Late Jurassic, Oxfordian	Well-accepted; evidence of pycnofibers (hair-like structures)

Clade: Pterosauria, Suborder: Pterodactyloidea

Family: Dsungaripteridae

Name	Name Means	Classification	Size Comparison	Place	Diet	Details	Time	Locality	Formation	Geographical	Geological	Status (2025)
Dsungaripterus weii	“Junggar Wing”	Order: Pterosauria, Suborder: Pterodactyloidea, Family: Dsungaripteridae	Wingspan: ~3–3.5 m (10–11.5 ft), Body Length: ~1.5 m (5 ft), Weight: ~10–15 kg (22–33 lbs)	Asia, China	Piscivore/Molluscivore	Thick beak for crushing shells; likely foraged in coastal or lake environments	Early Cretaceous, Aptian (~120 Ma)	Junggar Basin	Tugulu Group	East Asia	Early Cretaceous, Aptian	Well-accepted; specialized feeder

Family: Pterodaustriidae

Name	Name Means	Classification	Size Comparison	Place	Diet	Details	Time	Locality	Formation	Geographical	Geological	Status (2025)
Arthurdactylus conandoylei	“Arthur’s Finger”	Order: Pterosauria, Suborder: Pterodactyloidea, Family: Pterodaustriidae	Wingspan: ~4–5 m (13–16.4 ft), Body Length: ~1.5 m (5 ft), Weight: ~15–20 kg (33–44 lbs)	South America, Brazil	Piscivore	Long beak; likely skimmed water for fish; coastal flyer	Early Cretaceous, Albian (~110 Ma)	Santana	Santana Formation	South America	Early Cretaceous, Albian	Well-accepted; named after Arthur Conan Doyle
Pterodaustro guinazui	“Southern Wing”	Order: Pterosauria, Suborder: Pterodactyloidea, Family: Pterodaustriidae	Wingspan: ~2.5 m (8.2 ft), Body Length: ~1 m (3.3 ft), Weight: ~5–10 kg (11–22 lbs)	South America, Argentina	Filter-feeder	Flamingo-like; baleen-like teeth for filtering plankton; lake-dweller	Early Cretaceous, Albian (~110 Ma)	Lagarcito	Lagarcito Formation	South America	Early Cretaceous, Albian	Well-accepted; unique filter-feeding pterosaur
Shenzhoupterus chaoyangensis	“Shenzhou Wing”	Order: Pterosauria, Suborder: Pterodactyloidea, Family: Pterodaustriidae	Wingspan: ~2 m (6.6 ft), Body Length: ~0.8 m (2.6 ft), Weight: ~3–5 kg (6.6–11 lbs)	Asia, China	Insectivore/Piscivore	Crested head; likely caught insects or small fish; lived near lakes	Early Cretaceous, Aptian (~120 Ma)	Chaoyang	Jiufotang Formation	East Asia	Early Cretaceous, Aptian	Well-accepted; well-preserved fossils

Family: Pterodactylidae

Name	Name Means	Classification	Size Comparison	Place	Diet	Details	Time	Locality	Formation	Geographical	Geological	Status (2025)
Cearadactylus atrox	“Ceará Terrible Finger”	Order: Pterosauria, Suborder: Pterodactyloidea, Family: Pterodactylidae	Wingspan: ~4–5 m (13–16.4 ft), Body Length: ~1.5 m (5 ft), Weight: ~15–20 kg (33–44 lbs)	South America, Brazil	Piscivore	Large jaws, sharp teeth; fished in coastal waters; robust flyer	Early Cretaceous, Albian (~110 Ma)	Santana	Santana Formation	South America	Early Cretaceous, Albian	Well-accepted; distinct predatory pterosaur
Ctenochasma taqueti	“Comb Jaw”	Order: Pterosauria, Suborder: Pterodactyloidea, Family: Pterodactylidae	Wingspan: ~2 m (6.6 ft), Body Length: ~0.8 m (2.6 ft), Weight: ~3–5 kg (6.6–11 lbs)	Europe, France	Filter-feeder	Comb-like teeth for filtering small prey; lived near lagoons	Late Jurassic, Tithonian (~150 Ma)	Mornes	Mornes Limestone	Western Europe	Late Jurassic, Tithonian	Well-accepted; specialized filter-feeder

Family: Ornithocheiridae

Name	Name Means	Classification	Size Comparison	Place	Diet	Details	Time	Locality	Formation	Geographical	Geological	Status (2025)
Aerodraco sedgwickii	“Sky Dragon”	Order: Pterosauria, Suborder: Pterodactyloidea, Family: Ornithocheiridae	Wingspan: ~3–4 m (10–13 ft), Body Length: ~1.2 m (4 ft), Weight: ~10–15 kg (22–33 lbs)	Europe, England	Piscivore	Long beak, likely fished in coastal waters; agile flyer	Early Cretaceous, Hauterivian (~130 Ma)	Cambridge	Cambridge Greensand	Western Europe	Early Cretaceous, Hauterivian	Well-accepted; reclassified from Ornithocheirus
Ornithocheirus simus	“Bird Jaw”	Order: Pterosauria, Suborder: Pterodactyloidea, Family: Ornithocheiridae	Wingspan: ~4–6 m (13–20 ft), Body Length: ~1.5 m (5 ft), Weight: ~15–25 kg (33–55 lbs)	Europe, England	Piscivore	Large jaws, fished along coasts; strong flyer	Early Cretaceous, Albian (~110 Ma)	Cambridge	Cambridge Greensand	Western Europe	Early Cretaceous, Albian	Debated; possibly a nomen dubium due to fragmentary fossils
Pteranodon sternbergi	“Toothless Wing”	Order: Pterosauria, Suborder: Pterodactyloidea, Family: Ornithocheiridae	Wingspan: ~6–7 m (20–23 ft), Body Length: ~1.8 m (6 ft), Weight: ~20–30 kg (44–66 lbs)	North America, USA (Kansas)	Piscivore	Large crest, toothless beak; skimmed oceans for fish; iconic pterosaur	Late Cretaceous, Campanian (~80 Ma)	Smoky Hill	Niobrara Formation	Central North America	Late Cretaceous, Campanian	Well-accepted; distinct from P. longiceps
Quetzalcoatlus lawsoni	“Feathered Serpent Wing”	Order: Pterosauria, Suborder: Pterodactyloidea, Family: Ornithocheiridae	Wingspan: ~10–15 m (33–49.2 ft), Body Length: ~6 m (19.7 ft), Weight: ~200–250 kg (440–550 lbs)	North America, USA (Texas)	Carnivore/Scavenger	Largest flying animal; likely scavenged or hunted small prey; soared over plains	Late Cretaceous, Maastrichtian (~70 Ma)	Big Bend	Javelina Formation	Southern North America	Late Cretaceous, Maastrichtian	Well-accepted; one of largest pterosaurs known

Theropoda Chart Tables – The Predatory Elite

Narrated by Annemarie Blanco as Teodora Villavicencio

¡Órale, amigos! It’s Teodora Villavicencio, stalking the Mesozoic with the fiercest dinos around—theropods, the Predatory Elite! These bad boys ruled the land, from tiny Compsognathus snatching lizards to Tyrannosaurus rex chomping everything in sight. With razor-sharp claws, killer teeth, and some serious attitude, they were the top dogs of their time. From Triassic hunters like Coelophysis to Cretaceous titans like Spinosaurus, these carnivores were no joke. Check the tables below for the full scoop on these epic predators!

Clade: Theropoda, Suborder: Theropoda, Infraorder: Coelurosauria

Family: Podokesauridae

Name	Name Means	Classification	Size Comparison	Place	Diet	Details	Time	Locality	Formation	Geographical	Geological	Status (2025)
Aristosuchus pusillus	“Noble Crocodile”	Order: Saurischia, Suborder: Theropoda, Infraorder: Coelurosauria, Family: Podokesauridae	Length: ~2 m (6.6 ft), Height: ~0.7 m (2.3 ft), Weight: ~10 kg (22 lbs)	Europe, England	Carnivore	Small, agile; hunted small vertebrates; early coelurosaur	Early Cretaceous, Barremian (~125 Ma)	Isle of Wight	Wessex Formation	Western Europe	Early Cretaceous, Barremian	Well-accepted; poorly known
Coelophysis bauri	“Hollow Form”	Order: Saurischia, Suborder: Theropoda, Infraorder: Coelurosauria, Family: Podokesauridae	Length: ~3 m (10 ft), Height: ~1 m (3.3 ft), Weight: ~20–30 kg (44–66 lbs)	North America, USA (New Mexico)	Carnivore	Lightweight, bipedal; hunted small animals; pack hunter	Late Triassic, Norian (~210 Ma)	Ghost Ranch	Chinle Formation	Western North America	Late Triassic, Norian	Well-accepted; iconic early theropod
Halticosaurus longotarsus	“Leaping Lizard”	Order: Saurischia, Suborder: Theropoda, Infraorder: Coelurosauria, Family: Podokesauridae	Length: ~2.5 m (8.2 ft), Height: ~0.8 m (2.6 ft), Weight: ~15 kg (33 lbs)	Europe, Germany	Carnivore	Agile, bipedal; hunted small prey; poorly known	Late Triassic, Norian (~210 Ma)	Trossingen	Trossingen Formation	Central Europe	Late Triassic, Norian	Debated; possibly dubious due to fragmentary fossils
Liliensternus liliensterni	“Lilienstern’s Lizard”	Order: Saurischia, Suborder: Theropoda, Infraorder: Coelurosauria, Family: Podokesauridae	Length: ~5 m (16.4 ft), Height: ~1.5 m (5 ft), Weight: ~100–150 kg (220–330 lbs)	Europe, Germany	Carnivore	Larger early theropod; hunted medium-sized prey; bipedal	Late Triassic, Norian (~210 Ma)	Trossingen	Trossingen Formation	Central Europe	Late Triassic, Norian	Well-accepted; transitional form
Procompsognathus triassicus	“Before Elegant Jaw”	Order: Saurischia, Suborder: Theropoda, Infraorder: Coelurosauria, Family: Podokesauridae	Length: ~1.2 m (4 ft), Height: ~0.4 m (1.3 ft), Weight: ~1–2 kg (2.2–4.4 lbs)	Europe, Germany	Carnivore	Tiny, agile; hunted small vertebrates and insects; early coelurosaur	Late Triassic, Norian (~210 Ma)	Pfaffenhofen	Löwenstein Formation	Central Europe	Late Triassic, Norian	Well-accepted; similar to Compsognathus
Saltopus elginensis	“Hopping Foot”	Order: Saurischia, Suborder: Theropoda, Infraorder: Coelurosauria, Family: Podokesauridae	Length: ~0.6 m (2 ft), Height: ~0.2 m (0.7 ft), Weight: ~0.5–1 kg (1.1–2.2 lbs)	Europe, Scotland	Carnivore	Tiny, bipedal; likely insectivore or small prey hunter; poorly known	Late Triassic, Carnian (~230 Ma)	Elgin	Lossiemouth Sandstone	Western Europe	Late Triassic, Carnian	Debated; possibly not a dinosaur

Family: Coeluridae

Name	Name Means	Classification	Size Comparison	Place	Diet	Details	Time	Locality	Formation	Geographical	Geological	Status (2025)
Coelurus fragilis	“Hollow Tail”	Order: Saurischia, Suborder: Theropoda, Infraorder: Coelurosauria, Family: Coeluridae	Length: ~2 m (6.6 ft), Height: ~0.7 m (2.3 ft), Weight: ~10–15 kg (22–33 lbs)	North America, USA (Wyoming)	Carnivore	Small, agile; hunted small vertebrates; lightweight build	Late Jurassic, Kimmeridgian (~155 Ma)	Como Bluff	Morrison Formation	Western North America	Late Jurassic, Kimmeridgian	Well-accepted; early coelurosaur

Family: Tyrannosauroidea

Name	Name Means	Classification	Size Comparison	Place	Diet	Details	Time	Locality	Formation	Geographical	Geological	Status (2025)
Bistahieversor sealeyi	“Bistahi Destroyer”	Order: Saurischia, Suborder: Theropoda, Infraorder: Coelurosauria, Family: Tyrannosauroidea	Length: ~9 m (30 ft), Height: ~3 m (10 ft), Weight: ~2,000–3,000 kg (4,400–6,600 lbs)	North America, USA (New Mexico)	Carnivore	Early tyrannosaur; hunted large prey; robust skull	Late Cretaceous, Campanian (~75 Ma)	Kirtland	Kirtland Formation	Western North America	Late Cretaceous, Campanian	Well-accepted; transitional tyrannosaur
Dilong paradoxus	“Emperor Dragon”	Order: Saurischia, Suborder: Theropoda, Infraorder: Coelurosauria, Family: Tyrannosauroidea	Length: ~1.6 m (5.2 ft), Height: ~0.6 m (2 ft), Weight: ~10–20 kg (22–44 lbs)	Asia, China	Carnivore	Feathered; hunted small prey; early tyrannosaur	Early Cretaceous, Barremian (~125 Ma)	Liaoning	Yixian Formation	East Asia	Early Cretaceous, Barremian	Well-accepted; evidence of feathers
Dryptosaurus aquilunguis	“Tearing Lizard”	Order: Saurischia, Suborder: Theropoda, Infraorder: Coelurosauria, Family: Tyrannosauroidea	Length: ~7.5 m (25 ft), Height: ~2.5 m (8.2 ft), Weight: ~1,500 kg (3,300 lbs)	North America, USA (New Jersey)	Carnivore	Early tyrannosaur; hunted large prey; long arms	Late Cretaceous, Maastrichtian (~70 Ma)	Marshalltown	Marshalltown Formation	Eastern North America	Late Cretaceous, Maastrichtian	Well-accepted; poorly known
Eotyrannus lengi	“Dawn Tyrant”	Order: Saurischia, Suborder: Theropoda, Infraorder: Coelurosauria, Family: Tyrannosauroidea	Length: ~4 m (13 ft), Height: ~1.5 m (5 ft), Weight: ~150–200 kg (330–440 lbs)	Europe, England	Carnivore	Small tyrannosaur; hunted medium-sized prey; agile	Early Cretaceous, Barremian (~125 Ma)	Isle of Wight	Wessex Formation	Western Europe	Early Cretaceous, Barremian	Well-accepted; early tyrannosaur
Moros intrepidus	“Doom Intrepid”	Order: Saurischia, Suborder: Theropoda, Infraorder: Coelurosauria, Family: Tyrannosauroidea	Length: ~3 m (10 ft), Height: ~1 m (3.3 ft), Weight: ~50–100 kg (110–220 lbs)	North America, USA (Utah)	Carnivore	Small, agile; hunted small prey; early tyrannosaur	Late Cretaceous, Cenomanian (~95 Ma)	Cedar Mountain	Cedar Mountain Formation	Western North America	Late Cretaceous, Cenomanian	Well-accepted; recently named (2019)
Ornitholestes hermanni	“Bird Robber”	Order: Saurischia, Suborder: Theropoda, Infraorder: Coelurosauria, Family: Tyrannosauroidea	Length: ~2 m (6.6 ft), Height: ~0.7 m (2.3 ft), Weight: ~10–15 kg (22–33 lbs)	North America, USA (Wyoming)	Carnivore	Small, agile; likely hunted small dinosaurs and lizards	Late Jurassic, Kimmeridgian (~155 Ma)	Bone Cabin Quarry	Morrison Formation	Western North America	Late Jurassic, Kimmeridgian	Well-accepted; possibly closer to maniraptorans

Family: Compsognathidae

Name	Name Means	Classification	Size Comparison	Place	Diet	Details	Time	Locality	Formation	Geographical	Geological	Status (2025)
Compsognathus longipes	“Elegant Jaw”	Order: Saurischia, Suborder: Theropoda, Infraorder: Coelurosauria, Family: Compsognathidae	Length: ~1.4 m (4.6 ft), Height: ~0.4 m (1.3 ft), Weight: ~2–3 kg (4.4–6.6 lbs)	Europe, Germany	Carnivore	Tiny, agile; hunted small vertebrates; bird-like features	Late Jurassic, Tithonian (~150 Ma)	Solnhofen	Solnhofen Limestone	Central Europe	Late Jurassic, Tithonian	Well-accepted; iconic small theropod
Sinosauropteryx lingyuanensis	“Chinese Lizard Wing”	Order: Saurischia, Suborder: Theropoda, Infraorder: Coelurosauria, Family: Compsognathidae	Length: ~1.2 m (4 ft), Height: ~0.4 m (1.3 ft), Weight: ~1–2 kg (2.2–4.4 lbs)	Asia, China	Carnivore	Feathered; hunted small prey; first dinosaur with confirmed feathers	Early Cretaceous, Barremian (~125 Ma)	Liaoning	Yixian Formation	East Asia	Early Cretaceous, Barremian	Well-accepted; key feathered dinosaur

Family: Ornithomimidae

Name	Name Means	Classification	Size Comparison	Place	Diet	Details	Time	Locality	Formation	Geographical	Geological	Status (2025)
Archaeornithomimus asiaticus	“Ancient Bird Mimic”	Order: Saurischia, Suborder: Theropoda, Infraorder: Coelurosauria, Family: Ornithomimidae	Length: ~3.5 m (11.5 ft), Height: ~1.5 m (5 ft), Weight: ~50–100 kg (110–220 lbs)	Asia, China	Omnivore	Ostrich-like; likely ate plants and small animals; fast runner	Late Cretaceous, Campanian (~75 Ma)	Iren Dabasu	Iren Dabasu Formation	East Asia	Late Cretaceous, Campanian	Well-accepted; early ornithomimid
Dromiceiomimus samueli	“Swift Mimic”	Order: Saurischia, Suborder: Theropoda, Infraorder: Coelurosauria, Family: Ornithomimidae	Length: ~3.5 m (11.5 ft), Height: ~1.5 m (5 ft), Weight: ~100–150 kg (220–330 lbs)	North America, Canada	Omnivore	Fast, bird-like; likely omnivorous; lived in plains	Late Cretaceous, Campanian (~75 Ma)	Alberta	Dinosaur Park Formation	Western North America	Late Cretaceous, Campanian	Well-accepted; possibly synonymous with Ornithomimus
Gallimimus bullatus	“Chicken Mimic”	Order: Saurischia, Suborder: Theropoda, Infraorder: Coelurosauria, Family: Ornithomimidae	Length: ~6 m (20 ft), Height: ~2 m (6.6 ft), Weight: ~400–500 kg (880–1,100 lbs)	Asia, Mongolia	Omnivore	Long arms, beak; likely ate plants and small prey; very fast	Late Cretaceous, Campanian (~75 Ma)	Gobi Desert	Nemegt Formation	Central Asia	Late Cretaceous, Campanian	Well-accepted; iconic ornithomimid
Ornithomimus velox	“Bird Mimic”	Order: Saurischia, Suborder: Theropoda, Infraorder: Coelurosauria, Family: Ornithomimidae	Length: ~4 m (13 ft), Height: ~1.5 m (5 ft), Weight: ~150–200 kg (330–440 lbs)	North America, USA (Colorado)	Omnivore	Fast, ostrich-like; likely omnivorous; lived in floodplains	Late Cretaceous, Maastrichtian (~70 Ma)	Denver	Denver Formation	Western North America	Late Cretaceous, Maastrichtian	Well-accepted; common ornithomimid
Struthiomimus altus	“Ostrich Mimic”	Order: Saurischia, Suborder: Theropoda, Infraorder: Coelurosauria, Family: Ornithomimidae	Length: ~4 m (13 ft), Height: ~1.5 m (5 ft), Weight: ~150–200 kg (330–440 lbs)	North America, Canada	Omnivore	Long legs, beak; likely ate plants and small animals; fast runner	Late Cretaceous, Campanian (~75 Ma)	Alberta	Dinosaur Park Formation	Western North America	Late Cretaceous, Campanian	Well-accepted; similar to Ornithomimus

Family: Deinocheiridae

Name	Name Means	Classification	Size Comparison	Place	Diet	Details	Time	Locality	Formation	Geographical	Geological	Status (2025)
Deinocheirus mirificus	“Terrible Hand”	Order: Saurischia, Suborder: Theropoda, Infraorder: Coelurosauria, Family: Deinocheiridae	Length: ~11 m (36 ft), Height: ~4 m (13 ft), Weight: ~6,000–7,000 kg (13,200–15,400 lbs)	Asia, Mongolia	Omnivore	Huge arms, hump-backed; likely ate plants and fish; semi-aquatic	Late Cretaceous, Campanian (~75 Ma)	Gobi Desert	Nemegt Formation	Central Asia	Late Cretaceous, Campanian	Well-accepted; fully described in 2014

Clade: Theropoda, Suborder: Theropoda, Infraorder: Coelurosauria, Maniraptoria

Family: Oviraptoridae

Name	Name Means	Classification	Size Comparison	Place	Diet	Details	Time	Locality	Formation	Geographical	Geological	Status (2025)
Avimimus nemegtensis	“Bird Mimic”	Order: Saurischia, Suborder: Theropoda, Infraorder: Coelurosauria, Maniraptoria, Family: Oviraptoridae	Length: ~1.5 m (5 ft), Height: ~0.7 m (2.3 ft), Weight: ~10–20 kg (22–44 lbs)	Asia, Mongolia	Omnivore	Feathered, bird-like; likely ate eggs and plants; fast runner	Late Cretaceous, Maastrichtian (~70 Ma)	Nemegt	Nemegt Formation	Central Asia	Late Cretaceous, Maastrichtian	Well-accepted; early oviraptorid
Chirostenotes pergracilis	“Narrow-Handed”	Order: Saurischia, Suborder: Theropoda, Infraorder: Coelurosauria, Maniraptoria, Family: Oviraptoridae	Length: ~2 m (6.6 ft), Height: ~1 m (3.3 ft), Weight: ~50 kg (110 lbs)	North America, Canada	Omnivore	Slender, beaked; likely ate plants and small prey; agile	Late Cretaceous, Campanian (~75 Ma)	Alberta	Dinosaur Park Formation	Western North America	Late Cretaceous, Campanian	Well-accepted; synonymized with Elmisaurus in some studies
Elmisaurus rarus	“Foot Lizard”	Order: Saurischia, Suborder: Theropoda, Infraorder: Coelurosauria, Maniraptoria, Family: Oviraptoridae	Length: ~2 m (6.6 ft), Height: ~1 m (3.3 ft), Weight: ~50 kg (110 lbs)	Asia, Mongolia	Omnivore	Feathered; likely ate eggs and plants; poorly known	Late Cretaceous, Maastrichtian (~70 Ma)	Nemegt	Nemegt Formation	Central Asia	Late Cretaceous, Maastrichtian	Well-accepted; possibly synonymous with Chirostenotes
Oviraptor philoceratops	“Egg Thief”	Order: Saurischia, Suborder: Theropoda, Infraorder: Coelurosauria, Maniraptoria, Family: Oviraptoridae	Length: ~2 m (6.6 ft), Height: ~1 m (3.3 ft), Weight: ~30–40 kg (66–88 lbs)	Asia, Mongolia	Omnivore	Crested, beaked; likely ate eggs and plants; nested protectively	Late Cretaceous, Campanian (~75 Ma)	Djadochta	Djadochta Formation	Central Asia	Late Cretaceous, Campanian	Well-accepted; misnamed as egg thief

Family: Therizinosauridae

Name	Name Means	Classification	Size Comparison	Place	Diet	Details	Time	Locality	Formation	Geographical	Geological	Status (2025)
Erlikosaurus andrewsi	“Erlik’s Lizard”	Order: Saurischia, Suborder: Theropoda, Infraorder: Coelurosauria, Maniraptoria, Family: Therizinosauridae	Length: ~4 m (13 ft), Height: ~1.5 m (5 ft), Weight: ~200–300 kg (440–660 lbs)	Asia, Mongolia	Herbivore	Long claws, beaked; grazed plants; feathered	Late Cretaceous, Campanian (~75 Ma)	Bayan Shireh	Bayan Shireh Formation	Central Asia	Late Cretaceous, Campanian	Well-accepted; early therizinosaur
Segnosaurus galbinensis	“Slow Lizard”	Order: Saurischia, Suborder: Theropoda, Infraorder: Coelurosauria, Maniraptoria, Family: Therizinosauridae	Length: ~6 m (20 ft), Height: ~2 m (6.6 ft), Weight: ~1,000 kg (2,200 lbs)	Asia, Mongolia	Herbivore	Long claws, herbivorous; grazed mid-level plants; feathered	Late Cretaceous, Campanian (~75 Ma)	Bayan Shireh	Bayan Shireh Formation	Central Asia	Late Cretaceous, Campanian	Well-accepted; key herbivorous theropod
Therizinosaurus cheloniformis	“Scythe Lizard”	Order: Saurischia, Suborder: Theropoda, Infraorder: Coelurosauria, Maniraptoria, Family: Therizinosauridae	Length: ~10 m (33 ft), Height: ~4 m (13 ft), Weight: ~3,000–5,000 kg (6,600–11,000 lbs)	Asia, Mongolia	Herbivore	Massive claws; grazed high vegetation; heavily feathered	Late Cretaceous, Maastrichtian (~70 Ma)	Nemegt	Nemegt Formation	Central Asia	Late Cretaceous, Maastrichtian	Well-accepted; iconic therizinosaur

Family: Saurornithoididae

Name	Name Means	Classification	Size Comparison	Place	Diet	Details	Time	Locality	Formation	Geographical	Geological	Status (2025)
Saurornithoides mongoliensis	“Bird-Like Lizard”	Order: Saurischia, Suborder: Theropoda, Infraorder: Coelurosauria, Maniraptoria, Family: Saurornithoididae	Length: ~2 m (6.6 ft), Height: ~1 m (3.3 ft), Weight: ~30–40 kg (66–88 lbs)	Asia, Mongolia	Carnivore	Feathered, bird-like; hunted small prey; intelligent	Late Cretaceous, Campanian (~75 Ma)	Djadochta	Djadochta Formation	Central Asia	Late Cretaceous, Campanian	Well-accepted; synonymized with Troodon in some studies
Stenonychosaurus inequalis	“Narrow Claw Lizard”	Order: Saurischia, Suborder: Theropoda, Infraorder: Coelurosauria, Maniraptoria, Family: Saurornithoididae	Length: ~2 m (6.6 ft), Height: ~1 m (3.3 ft), Weight: ~35–50 kg (77–110 lbs)	North America, Canada	Carnivore	Feathered, agile; hunted small dinosaurs; large brain	Late Cretaceous, Campanian (~75 Ma)	Alberta	Dinosaur Park Formation	Western North America	Late Cretaceous, Campanian	Well-accepted; often synonymized with Troodon
Troodon formosus	“Wounding Tooth”	Order: Saurischia, Suborder: Theropoda, Infraorder: Coelurosauria, Maniraptoria, Family: Saurornithoididae	Length: ~2.4 m (8 ft), Height: ~1 m (3.3 ft), Weight: ~40–50 kg (88–110 lbs)	North America, USA (Montana)	Carnivore	Feathered, intelligent; hunted small prey; nocturnal	Late Cretaceous, Maastrichtian (~70 Ma)	Hell Creek	Hell Creek Formation	Western North America	Late Cretaceous, Maastrichtian	Well-accepted; possibly includes Saurornithoides and Stenonychosaurus

Family: Dromaeosauridae

Name	Name Means	Classification	Size Comparison	Place	Diet	Details	Time	Locality	Formation	Geographical	Geological	Status (2025)
Adasaurus mongoliensis	“Ada Lizard”	Order: Saurischia, Suborder: Theropoda, Infraorder: Coelurosauria, Maniraptoria, Family: Dromaeosauridae	Length: ~2 m (6.6 ft), Height: ~1 m (3.3 ft), Weight: ~30–40 kg (66–88 lbs)	Asia, Mongolia	Carnivore	Feathered, sickle-clawed; hunted small dinosaurs; agile	Late Cretaceous, Maastrichtian (~70 Ma)	Nemegt	Nemegt Formation	Central Asia	Late Cretaceous, Maastrichtian	Well-accepted; poorly known
Bambiraptor feinbergi	“Bambi Thief”	Order: Saurischia, Suborder: Theropoda, Infraorder: Coelurosauria, Maniraptoria, Family: Dromaeosauridae	Length: ~1 m (3.3 ft), Height: ~0.5 m (1.6 ft), Weight: ~5–10 kg (11–22 lbs)	North America, USA (Montana)	Carnivore	Feathered, bird-like; hunted small prey; very agile	Late Cretaceous, Campanian (~75 Ma)	Two Medicine	Two Medicine Formation	Western North America	Late Cretaceous, Campanian	Well-accepted; juvenile fossils
Dakotaraptor steini	“Dakota Thief”	Order: Saurischia, Suborder: Theropoda, Infraorder: Coelurosauria, Maniraptoria, Family: Dromaeosauridae	Length: ~5.5 m (18 ft), Height: ~1.8 m (6 ft), Weight: ~300–350 kg (660–770 lbs)	North America, USA (South Dakota)	Carnivore	Large, feathered; hunted large prey; pack hunter	Late Cretaceous, Maastrichtian (~70 Ma)	Hell Creek	Hell Creek Formation	Western North America	Late Cretaceous, Maastrichtian	Debated; possibly chimeric or synonymous with Acheroraptor
Deinonychus antirrhopus	“Terrible Claw”	Order: Saurischia, Suborder: Theropoda, Infraorder: Coelurosauria, Maniraptoria, Family: Dromaeosauridae	Length: ~3.4 m (11 ft), Height: ~1.5 m (5 ft), Weight: ~70–100 kg (154–220 lbs)	North America, USA (Montana)	Carnivore	Feathered, sickle-clawed; hunted in packs; agile predator	Early Cretaceous, Aptian (~115 Ma)	Cloverly	Cloverly Formation	Western North America	Early Cretaceous, Aptian	Well-accepted; iconic raptor
Dromaeosaurus albertensis	“Running Lizard”	Order: Saurischia, Suborder: Theropoda, Infraorder: Coelurosauria, Maniraptoria, Family: Dromaeosauridae	Length: ~2 m (6.6 ft), Height: ~1 m (3.3 ft), Weight: ~30–40 kg (66–88 lbs)	North America, Canada	Carnivore	Feathered, robust; hunted small to medium prey; strong bite	Late Cretaceous, Campanian (~75 Ma)	Alberta	Dinosaur Park Formation	Western North America	Late Cretaceous, Campanian	Well-accepted; type genus
Saurornitholestes sullivani	“Bird-Like Thief”	Order: Saurischia, Suborder: Theropoda, Infraorder: Coelurosauria, Maniraptoria, Family: Dromaeosauridae	Length: ~1.8 m (6 ft), Height: ~0.8 m (2.6 ft), Weight: ~20–30 kg (44–66 lbs)	North America, USA (New Mexico)	Carnivore	Feathered, agile; hunted small prey; bird-like	Late Cretaceous, Campanian (~75 Ma)	Kirtland	Kirtland Formation	Western North America	Late Cretaceous, Campanian	Well-accepted; recently named (2015)
Velociraptor osmolskae	“Swift Thief”	Order: Saurischia, Suborder: Theropoda, Infraorder: Coelurosauria, Maniraptoria, Family: Dromaeosauridae	Length: ~2 m (6.6 ft), Height: ~0.8 m (2.6 ft), Weight: ~20–30 kg (44–66 lbs)	Asia, Mongolia	Carnivore	Feathered, sickle-clawed; hunted small dinosaurs; intelligent	Late Cretaceous, Campanian (~75 Ma)	Djadochta	Djadochta Formation	Central Asia	Late Cretaceous, Campanian	Well-accepted; distinct from V. mongoliensis

Family: Archaeopterygidae

Name	Name Means	Classification	Size Comparison	Place	Diet	Details	Time	Locality	Formation	Geographical	Geological	Status (2025)
Archaeopteryx albersdoerferi	“Ancient Wing”	Order: Saurischia, Suborder: Theropoda, Infraorder: Coelurosauria, Maniraptoria, Family: Archaeopterygidae	Length: ~0.5 m (1.6 ft), Height: ~0.2 m (0.7 ft), Weight: ~0.5–1 kg (1.1–2.2 lbs)	Europe, Germany	Carnivore	Feathered, bird-like; likely ate insects and small prey; early flier/glider	Late Jurassic, Tithonian (~150 Ma)	Solnhofen	Solnhofen Limestone	Central Europe	Late Jurassic, Tithonian	Well-accepted; recently named (2009)

Clade: Theropoda, Suborder: Theropoda, Infraorder: Ceratosauria

Family: Ceratosauridae

Name	Name Means	Classification	Size Comparison	Place	Diet	Details	Time	Locality	Formation	Geographical	Geological	Status (2025)
Ceratosaurus nasicornis	“Horned Lizard”	Order: Saurischia, Suborder: Theropoda, Infraorder: Ceratosauria, Family: Ceratosauridae	Length: ~6 m (20 ft), Height: ~2 m (6.6 ft), Weight: ~1,000 kg (2,200 lbs)	North America, USA (Utah)	Carnivore	Nasal horn, large teeth; hunted large prey; agile predator	Late Jurassic, Kimmeridgian (~155 Ma)	Cleveland-Lloyd	Morrison Formation	Western North America	Late Jurassic, Kimmeridgian	Well-accepted; iconic ceratosaur
Dilophosaurus wetherilli	“Two-Crested Lizard”	Order: Saurischia, Suborder: Theropoda, Infraorder: Ceratosauria, Family: Ceratosauridae	Length: ~6 m (20 ft), Height: ~2 m (6.6 ft), Weight: ~400–500 kg (880–1,100 lbs)	North America, USA (Arizona)	Carnivore	Double crests; hunted medium-sized prey; likely agile	Early Jurassic, Sinemurian (~190 Ma)	Kayenta	Kayenta Formation	Western North America	Early Jurassic, Sinemurian	Well-accepted; crests likely for display
Elaphrosaurus bambergi	“Lightweight Lizard”	Order: Saurischia, Suborder: Theropoda, Infraorder: Ceratosauria, Family: Ceratosauridae	Length: ~6 m (20 ft), Height: ~2 m (6.6 ft), Weight: ~200–300 kg (440–660 lbs)	Africa, Tanzania	Carnivore	Slender, fast; likely hunted small to medium prey; lightly built	Late Jurassic, Kimmeridgian (~155 Ma)	Tendaguru	Tendaguru Formation	East Africa	Late Jurassic, Kimmeridgian	Well-accepted; possibly omnivorous

Family: Abelisauridae

Name	Name Means	Classification	Size Comparison	Place	Diet	Details	Time	Locality	Formation	Geographical	Geological	Status (2025)
Aucasaurus garridoi	“Auca Lizard”	Order: Saurischia, Suborder: Theropoda, Infraorder: Ceratosauria, Family: Abelisauridae	Length: ~6 m (20 ft), Height: ~2 m (6.6 ft), Weight: ~700–1,000 kg (1,540–2,200 lbs)	South America, Argentina	Carnivore	Short arms, robust skull; hunted large prey; southern predator	Late Cretaceous, Campanian (~75 Ma)	Anacleto	Anacleto Formation	South America	Late Cretaceous, Campanian	Well-accepted; well-preserved
Carnotaurus sastrei	“Meat-Eating Bull”	Order: Saurischia, Suborder: Theropoda, Infraorder: Ceratosauria, Family: Abelisauridae	Length: ~7.5 m (25 ft), Height: ~2.5 m (8.2 ft), Weight: ~1,500–2,000 kg (3,300–4,400 lbs)	South America, Argentina	Carnivore	Horned, fast; hunted large prey; distinctive skull	Late Cretaceous, Maastrichtian (~70 Ma)	Chubut	La Colonia Formation	South America	Late Cretaceous, Maastrichtian	Well-accepted; iconic abelisaur
Kryptops palaios	“Hidden Face”	Order: Saurischia, Suborder: Theropoda, Infraorder: Ceratosauria, Family: Abelisauridae	Length: ~7 m (23 ft), Height: ~2 m (6.6 ft), Weight: ~1,000 kg (2,200 lbs)	Africa, Niger	Carnivore	Robust, short arms; hunted large prey; poorly known	Early Cretaceous, Aptian (~115 Ma)	Gadoufaoua	Elrhaz Formation	North Africa	Early Cretaceous, Aptian	Well-accepted; limited fossils
Majungasaurus crenatissimus	“Mahajanga Lizard”	Order: Saurischia, Suborder: Theropoda, Infraorder: Ceratosauria, Family: Abelisauridae	Length: ~7 m (23 ft), Height: ~2.5 m (8.2 ft), Weight: ~1,000–1,500 kg (2,200–3,300 lbs)	Africa, Madagascar	Carnivore	Short arms, horned; hunted large prey; evidence of cannibalism	Late Cretaceous, Maastrichtian (~70 Ma)	Mahajanga	Ankazomihaboka Formation	Madagascar	Late Cretaceous, Maastrichtian	Well-accepted; well-studied abelisaur
Xenotarsosaurus bonapartei	“Strange Ankle Lizard”	Order: Saurischia, Suborder: Theropoda, Infraorder: Ceratosauria, Family: Abelisauridae	Length: ~6 m (20 ft), Height: ~2 m (6.6 ft), Weight: ~700–1,000 kg (1,540–2,200 lbs)	South America, Argentina	Carnivore	Robust, short arms; hunted large prey; poorly known	Late Cretaceous, Cenomanian (~95 Ma)	Bajo Barreal	Bajo Barreal Formation	South America	Late Cretaceous, Cenomanian	Well-accepted; limited fossils

Clade: Theropoda, Suborder: Theropoda, Infraorder: Carnosauria

Family: Megalosauridae

Name	Name Means	Classification	Size Comparison	Place	Diet	Details	Time	Locality	Formation	Geographical	Geological	Status (2025)
Eustreptospondylus oxoniensis	“Well-Curved Vertebra”	Order: Saurischia, Suborder: Theropoda, Infraorder: Carnosauria, Family: Megalosauridae	Length: ~7 m (23 ft), Height: ~2.5 m (8.2 ft), Weight: ~1,000–1,500 kg (2,200–3,300 lbs)	Europe, England	Carnivore	Robust, bipedal; hunted large prey; coastal predator	Middle Jurassic, Callovian (~165 Ma)	Oxford	Oxford Clay Formation	Western Europe	Middle Jurassic, Callovian	Well-accepted; well-preserved
Giganotosaurus carolinii	“Giant Southern Lizard”	Order: Saurischia, Suborder: Theropoda, Infraorder: Carnosauria, Family: Megalosauridae	Length: ~12–13 m (39–43 ft), Height: ~4 m (13 ft), Weight: ~6,000–8,000 kg (13,200–17,600 lbs)	South America, Argentina	Carnivore	Massive, rivaled T. rex; hunted titanosaurs; powerful bite	Late Cretaceous, Cenomanian (~95 Ma)	Candeleros	Candeleros Formation	South America	Late Cretaceous, Cenomanian	Well-accepted; one of largest theropods
Poekilopleuron bucklandii	“Varied Rib”	Order: Saurischia, Suborder: Theropoda, Infraorder: Carnosauria, Family: Megalosauridae	Length: ~7 m (23 ft), Height: ~2.5 m (8.2 ft), Weight: ~1,000–1,500 kg (2,200–3,300 lbs)	Europe, France	Carnivore	Robust, bipedal; hunted large prey; poorly known	Middle Jurassic, Bathonian (~165 Ma)	Normandy	Calcaire de Caen	Western Europe	Middle Jurassic, Bathonian	Well-accepted; fragmentary fossils
Proceratosaurus bradleyi	“Before Horned Lizard”	Order: Saurischia, Suborder: Theropoda, Infraorder: Carnosauria, Family: Megalosauridae	Length: ~3 m (10 ft), Height: ~1 m (3.3 ft), Weight: ~50–100 kg (110–220 lbs)	Europe, England	Carnivore	Small, crested; likely hunted small prey; early tyrannosauroid	Middle Jurassic, Bathonian (~165 Ma)	Minchinhampton	Great Oolite Group	Western Europe	Middle Jurassic, Bathonian	Well-accepted; reclassified as early tyrannosauroid

Family: Allosauridae

Name	Name Means	Classification	Size Comparison	Place	Diet	Details	Time	Locality	Formation	Geographical	Geological	Status (2025)
Allosaurus europaeus	“Different Lizard”	Order: Saurischia, Suborder: Theropoda, Infraorder: Carnosauria, Family: Allosauridae	Length: ~12 m (39.4 ft), Height: ~3.9 m (12.7 ft), Weight: ~2,000–3,000 kg (4,400–6,600 lbs)	Europe, Portugal, North America, USA (Colorado, Utah)	Carnivore	Robust, powerful bite; hunted large prey; European allosaur	Late Jurassic, Kimmeridgian (~155 Ma)	Lourinhã, Morrison	Lourinhã, Morrison Formation	Western Europe, Western North America	Late Jurassic, Kimmeridgian	Well-accepted; distinct from A. fragilis
Yangchuanosaurus zigongensis	“Yangchuan Lizard”	Order: Saurischia, Suborder: Theropoda, Infraorder: Carnosauria, Family: Allosauridae	Length: ~8 m (26 ft), Height: ~3 m (10 ft), Weight: ~2,000–3,000 kg (4,400–6,600 lbs)	Asia, China	Carnivore	Large, robust; hunted large prey; Asian allosaur	Late Jurassic, Oxfordian (~160 Ma)	Zigong	Shaximiao Formation	East Asia	Late Jurassic, Oxfordian	Well-accepted; similar to Allosaurus

Family: Spinosauridae

Name	Name Means	Classification	Size Comparison	Place	Diet	Details	Time	Locality	Formation	Geographical	Geological	Status (2025)
Acrocanthosaurus atokensis	“High-Spined Lizard”	Order: Saurischia, Suborder: Theropoda, Infraorder: Carnosauria, Family: Spinosauridae	Length: ~11 m (36 ft), Height: ~4 m (13 ft), Weight: ~5,000–6,000 kg (11,000–13,200 lbs)	North America, USA (Oklahoma)	Carnivore	Neural spines, robust; hunted large prey; possibly semi-aquatic	Early Cretaceous, Aptian (~115 Ma)	Antlers	Twin Mountains Formation	Western North America	Early Cretaceous, Aptian	Well-accepted; reclassified as carcharodontosaurid in some studies
Altispinax dunkeri	“High Spine”	Order: Saurischia, Suborder: Theropoda, Infraorder: Carnosauria, Family: Spinosauridae	Length: ~8 m (26 ft), Height: ~3 m (10 ft), Weight: ~1,500–2,000 kg (3,300–4,400 lbs)	Europe, England	Carnivore	High neural spines; hunted large prey; poorly known	Early Cretaceous, Valanginian (~135 Ma)	Hastings	Hastings Beds	Western Europe	Early Cretaceous, Valanginian	Debated; possibly synonymous with Becklespinax
Spinosaurus aegyptiacus	“Spine Lizard”	Order: Saurischia, Suborder: Theropoda, Infraorder: Carnosauria, Family: Spinosauridae	Length: ~14–18 m (46–59 ft), Height: ~5 m (16.4 ft), Weight: ~7,000–10,000 kg (15,400–22,000 lbs)	Africa, Egypt, Morocco	Piscivore/Carnivore	Sail-backed, semi-aquatic; hunted fish and large prey; largest theropod	Late Cretaceous, Cenomanian (~95 Ma)	Bahariya, Kem Kem	Bahariya Formation, Kem Kem Beds	North Africa	Late Cretaceous, Cenomanian	Well-accepted; swimming adaptations confirmed

Family: Tyrannosauridae

Name	Name Means	Classification	Size Comparison	Place	Diet	Details	Time	Locality	Formation	Geographical	Geological	Status (2025)
Albertosaurus sarcophagus	“Alberta Lizard”	Order: Saurischia, Suborder: Theropoda, Infraorder: Carnosauria, Family: Tyrannosauridae	Length: ~9 m (30 ft), Height: ~3 m (10 ft), Weight: ~2,000–3,000 kg (4,400–6,600 lbs)	North America, Canada	Carnivore	Smaller tyrannosaur; hunted hadrosaurs; pack hunter	Late Cretaceous, Campanian (~75 Ma)	Alberta	Horseshoe Canyon Formation	Western North America	Late Cretaceous, Campanian	Well-accepted; well-studied
Alectrosaurus olseni	“Unmarried Lizard”	Order: Saurischia, Suborder: Theropoda, Infraorder: Carnosauria, Family: Tyrannosauridae	Length: ~5 m (16.4 ft), Height: ~2 m (6.6 ft), Weight: ~500–1,000 kg (1,100–2,200 lbs)	Asia, Mongolia	Carnivore	Smaller tyrannosaur; hunted medium prey; poorly known	Late Cretaceous, Campanian (~75 Ma)	Iren Dabasu	Iren Dabasu Formation	Central Asia	Late Cretaceous, Campanian	Well-accepted; limited fossils
Alioramus altai	“Different Branch”	Order: Saurischia, Suborder: Theropoda, Infraorder: Carnosauria, Family: Tyrannosauridae	Length: ~6 m (20 ft), Height: ~2 m (6.6 ft), Weight: ~700–1,000 kg (1,540–2,200 lbs)	Asia, Mongolia	Carnivore	Slender, crested; hunted medium prey; agile tyrannosaur	Late Cretaceous, Maastrichtian (~70 Ma)	Nemegt	Nemegt Formation	Central Asia	Late Cretaceous, Maastrichtian	Well-accepted; distinct from A. remotus
Daspletosaurus horneri	“Frightful Lizard”	Order: Saurischia, Suborder: Theropoda, Infraorder: Carnosauria, Family: Tyrannosauridae	Length: ~9 m (30 ft), Height: ~3 m (10 ft), Weight: ~2,500–3,500 kg (5,500–7,700 lbs)	North America, USA (Montana)	Carnivore	Robust tyrannosaur; hunted large prey; sensory scales	Late Cretaceous, Campanian (~75 Ma)	Two Medicine	Two Medicine Formation	Western North America	Late Cretaceous, Campanian	Well-accepted; recently named (2017)
Nanuqsaurus hoglundi	“Polar Bear Lizard”	Order: Saurischia, Suborder: Theropoda, Infraorder: Carnosauria, Family: Tyrannosauridae	Length: ~6 m (20 ft), Height: ~2 m (6.6 ft), Weight: ~800–1,000 kg (1,760–2,200 lbs)	North America, USA (Alaska)	Carnivore	Small tyrannosaur; hunted in Arctic; adapted to cold	Late Cretaceous, Maastrichtian (~70 Ma)	North Slope	Prince Creek Formation	Arctic North America	Late Cretaceous, Maastrichtian	Well-accepted; recently named (2014)
Qianzhousaurus sinensis	“Qianzhou Lizard”	Order: Saurischia, Suborder: Theropoda, Infraorder: Carnosauria, Family: Tyrannosauridae	Length: ~6.3 m (21 ft), Height: ~2 m (6.6 ft), Weight: ~800–1,000 kg (1,760–2,200 lbs)	Asia, China	Carnivore	Slender, long-snouted; hunted medium prey; “Pinocchio rex”	Late Cretaceous, Maastrichtian (~70 Ma)	Ganzhou	Nanxiong Formation	East Asia	Late Cretaceous, Maastrichtian	Well-accepted; recently named (2014)
Tarbosaurus bataar	“Alarming Lizard”	Order: Saurischia, Suborder: Theropoda, Infraorder: Carnosauria, Family: Tyrannosauridae	Length: ~10–12 m (33–39 ft), Height: ~4 m (13 ft), Weight: ~4,000–5,000 kg (8,800–11,000 lbs)	Asia, Mongolia	Carnivore	Asian tyrannosaur; hunted large prey; similar to T. rex	Late Cretaceous, Maastrichtian (~70 Ma)	Nemegt	Nemegt Formation	Central Asia	Late Cretaceous, Maastrichtian	Well-accepted; well-studied
Tyrannosaurus rex	“Tyrant Lizard King”	Order: Saurischia, Suborder: Theropoda, Infraorder: Carnosauria, Family: Tyrannosauridae	Length: ~12–14.5 m (39–47.5 ft), Height: ~4.8 m (15.6 ft), Weight: ~8,000–14,000 kg (17,600–30,800 lbs)	North America, USA (Montana)	Carnivore	Apex predator; massive bite force; hunted large dinosaurs	Late Cretaceous, Maastrichtian (~70 Ma)	Hell Creek	Hell Creek Formation	Western North America	Late Cretaceous, Maastrichtian	Well-accepted; iconic theropod

Sauropodomorpha Chart Tables – The Gentle Giants

Narrated by Annemarie Blanco as Teodora Villavicencio

¡Órale, amigos! It’s Teodora Villavicencio, stomping through the Mesozoic with the biggest dinos ever—sauropodomorphs, the Gentle Giants! These massive plant-munchers ruled the lands, from early Herrerasaurus scampering around to Patagotitan shaking the ground with every step. With long necks, massive bodies, and tails that could whip a T. rex, these guys were the ultimate herbivores. From Triassic plains to Cretaceous forests, they towered over everything. Check the tables below for the full scoop on these colossal compas!

Clade: Sauropodomorpha, Suborder: Sauropodomorpha, Infraorder: Prosauropoda

Family: Herrerasauridae

Name	Name Means	Classification	Size Comparison	Place	Diet	Details	Time	Locality	Formation	Geographical	Geological	Status (2025)
Herrerasaurus ischigualastensis	“Herrera’s Lizard”	Order: Saurischia, Suborder: Sauropodomorpha, Infraorder: Prosauropoda, Family: Herrerasauridae	Length: ~4–6 m (13–20 ft), Height: ~1.5 m (5 ft), Weight: ~200–350 kg (440–770 lbs)	South America, Argentina	Carnivore	Early dinosaur; agile predator; hunted small vertebrates	Late Triassic, Carnian (~230 Ma)	Ischigualasto	Ischigualasto Formation	South America	Late Triassic, Carnian	Well-accepted; possibly basal saurischian, not true sauropodomorph
Sanjuansaurus gordilloi	“San Juan Lizard”	Order: Saurischia, Suborder: Sauropodomorpha, Infraorder: Prosauropoda, Family: Herrerasauridae	Length: ~3–4 m (10–13 ft), Height: ~1 m (3.3 ft), Weight: ~100–200 kg (220–440 lbs)	South America, Argentina	Carnivore	Small, agile; hunted small prey; early dinosaur	Late Triassic, Carnian (~230 Ma)	Ischigualasto	Ischigualasto Formation	South America	Late Triassic, Carnian	Well-accepted; recently named (2010)
Smurfette smurfensis	“Smurfette’s Smurf”	Order: Saurischia, Suborder: Sauropodomorpha, Infraorder: Prosauropoda, Family: Herrerasauridae	Length: ~0.19 m (7.5 in), Height: ~0.1 m (0.3 ft), Weight: ~0.1 kg (0.22 lbs)	Fictional (3D Smurfs TV series)	Omnivore	Fictional character; not a dinosaur; likely a typo or fan fiction entry	Late Triassic, Holocene	Belgium	Smurf Village	Europe	Late Triassic, Holocene	Invalid; not a recognized species
Staurikosaurus pricei	“Southern Cross Lizard”	Order: Saurischia, Suborder: Sauropodomorpha, Infraorder: Prosauropoda, Family: Herrerasauridae	Length: ~2–3 m (6.6–10 ft), Height: ~0.8 m (2.6 ft), Weight: ~30–50 kg (66–110 lbs)	South America, Brazil	Carnivore	Small, bipedal; hunted small prey; early dinosaur	Late Triassic, Carnian (~230 Ma)	Santa Maria	Santa Maria Formation	South America	Late Triassic, Carnian	Well-accepted; poorly known

Family: Anchisauridae

Name	Name Means	Classification	Size Comparison	Place	Diet	Details	Time	Locality	Formation	Geographical	Geological	Status (2025)
Anchisaurus polyzelus	“Near Lizard”	Order: Saurischia, Suborder: Sauropodomorpha, Infraorder: Prosauropoda, Family: Anchisauridae	Length: ~2–3 m (6.6–10 ft), Height: ~1 m (3.3 ft), Weight: ~20–30 kg (44–66 lbs)	North America, USA (Connecticut)	Herbivore/Omnivore	Small, bipedal; likely ate plants and small animals; early sauropodomorph	Early Jurassic, Sinemurian (~190 Ma)	Connecticut Valley	Portland Formation	Eastern North America	Early Jurassic, Sinemurian	Well-accepted; possibly omnivorous
Coloradisaurus brevis	“Colorados Lizard”	Order: Saurischia, Suborder: Sauropodomorpha, Infraorder: Prosauropoda, Family: Anchisauridae	Length: ~3–4 m (10–13 ft), Height: ~1.2 m (4 ft), Weight: ~50–100 kg (110–220 lbs)	South America, Argentina	Herbivore	Bipedal/quadrupedal; grazed low vegetation; early sauropodomorph	Late Triassic, Norian (~210 Ma)	Los Colorados	Los Colorados Formation	South America	Late Triassic, Norian	Well-accepted; reclassified from Coloradiosaurus
Efraasia minor	“Efraas’ Lizard”	Order: Saurischia, Suborder: Sauropodomorpha, Infraorder: Prosauropoda, Family: Anchisauridae	Length: ~2–3 m (6.6–10 ft), Height: ~1 m (3.3 ft), Weight: ~20–30 kg (44–66 lbs)	Europe, Germany	Herbivore/Omnivore	Small, bipedal; likely ate plants and small animals; early sauropodomorph	Late Triassic, Norian (~210 Ma)	Stuttgart	Löwenstein Formation	Central Europe	Late Triassic, Norian	Well-accepted; poorly known
Eoraptor lunensis	“Dawn Thief”	Order: Saurischia, Suborder: Sauropodomorpha, Infraorder: Prosauropoda, Family: Anchisauridae	Length: ~1–2 m (3.3–6.6 ft), Height: ~0.5 m (1.6 ft), Weight: ~10–20 kg (22–44 lbs)	South America, Argentina	Omnivore/Carnivore	Very early dinosaur; likely ate small prey and plants; bipedal	Late Triassic, Carnian (~230 Ma)	Ischigualasto	Ischigualasto Formation	South America	Late Triassic, Carnian	Well-accepted; possibly basal saurischian, not true sauropodomorph
Thecodontosaurus antiquus	“Socket-Toothed Lizard”	Order: Saurischia, Suborder: Sauropodomorpha, Infraorder: Prosauropoda, Family: Anchisauridae	Length: ~2–3 m (6.6–10 ft), Height: ~1 m (3.3 ft), Weight: ~20–30 kg (44–66 lbs)	Europe, England	Herbivore/Omnivore	Small, bipedal; grazed low vegetation; early sauropodomorph	Late Triassic, Rhaetian (~205 Ma)	Bristol	Magnesian Conglomerate	Western Europe	Late Triassic, Rhaetian	Well-accepted; early sauropodomorph

Family: Plateosauridae

Name	Name Means	Classification	Size Comparison	Place	Diet	Details	Time	Locality	Formation	Geographical	Geological	Status (2025)
Massospondylus kaalae	“Massive Vertebra”	Order: Saurischia, Suborder: Sauropodomorpha, Infraorder: Prosauropoda, Family: Plateosauridae	Length: ~4–6 m (13–20 ft), Height: ~1.5 m (5 ft), Weight: ~100–200 kg (220–440 lbs)	Africa, South Africa	Herbivore	Bipedal/quadrupedal; grazed low to mid vegetation; nested	Early Jurassic, Hettangian (~200 Ma)	Upper Karoo	Elliot Formation	Southern Africa	Early Jurassic, Hettangian	Well-accepted; well-studied prosauropod
Mussaurus patagonicus	“Mouse Lizard”	Order: Saurischia, Suborder: Sauropodomorpha, Infraorder: Prosauropoda, Family: Plateosauridae	Length: ~3–6 m (10–20 ft), Height: ~1.5 m (5 ft), Weight: ~50–1,000 kg (110–2,200 lbs)	South America, Argentina	Herbivore	Juveniles tiny, adults larger; grazed low vegetation; social	Late Triassic, Norian (~210 Ma)	Laguna Colorada	Laguna Colorada Formation	South America	Late Triassic, Norian	Well-accepted; known from juveniles and adults
Plateosaurus gracilis	“Broad Lizard”	Order: Saurischia, Suborder: Sauropodomorpha, Infraorder: Prosauropoda, Family: Plateosauridae	Length: ~5–8 m (16–26 ft), Height: ~2 m (6.6 ft), Weight: ~600–1,000 kg (1,320–2,200 lbs)	Europe, Germany	Herbivore	Bipedal/quadrupedal; grazed mid-level vegetation; herd behavior	Late Triassic, Norian (~210 Ma)	Trossingen	Trossingen Formation	Central Europe	Late Triassic, Norian	Well-accepted; iconic prosauropod

Family: Melanorosauridae

Name	Name Means	Classification	Size Comparison	Place	Diet	Details	Time	Locality	Formation	Geographical	Geological	Status (2025)
Lufengosaurus huenei	“Lufeng Lizard”	Order: Saurischia, Suborder: Sauropodomorpha, Infraorder: Prosauropoda, Family: Melanorosauridae	Length: ~6–8 m (20–26 ft), Height: ~2 m (6.6 ft), Weight: ~1,000–2,000 kg (2,200–4,400 lbs)	Asia, China	Herbivore	Large prosauropod; grazed mid-level vegetation; robust build	Early Jurassic, Hettangian (~200 Ma)	Lufeng	Lufeng Formation	East Asia	Early Jurassic, Hettangian	Well-accepted; transitional to sauropods
Riojasaurus incertus	“Rioja Lizard”	Order: Saurischia, Suborder: Sauropodomorpha, Infraorder: Prosauropoda, Family: Melanorosauridae	Length: ~6–10 m (20–33 ft), Height: ~2.5 m (8.2 ft), Weight: ~1,000–2,000 kg (2,200–4,400 lbs)	South America, Argentina	Herbivore	Large, quadrupedal; grazed mid-level vegetation; robust	Late Triassic, Norian (~210 Ma)	Los Colorados	Los Colorados Formation	South America	Late Triassic, Norian	Well-accepted; near-sauropod form
Yunnanosaurus youngi	“Yunnan Lizard”	Order: Saurischia, Suborder: Sauropodomorpha, Infraorder: Prosauropoda, Family: Melanorosauridae	Length: ~7–9 m (23–30 ft), Height: ~2 m (6.6 ft), Weight: ~1,000–2,000 kg (2,200–4,400 lbs)	Asia, China	Herbivore	Large prosauropod; grazed mid-level vegetation; possibly omnivorous	Early Jurassic, Hettangian (~200 Ma)	Lufeng	Lufeng Formation	East Asia	Early Jurassic, Hettangian	Well-accepted; transitional to sauropods

Clade: Sauropodomorpha, Suborder: Sauropodomorpha, Infraorder: Sauropoda

Family: Cetiosauridae

Name	Name Means	Classification	Size Comparison	Place	Diet	Details	Time	Locality	Formation	Geographical	Geological	Status (2025)
Barapasaurus tagorei	“Big-Legged Lizard”	Order: Saurischia, Suborder: Sauropodomorpha, Infraorder: Sauropoda, Family: Cetiosauridae	Length: ~12–14 m (39–46 ft), Height: ~4 m (13 ft), Weight: ~5,000–10,000 kg (11,000–22,000 lbs)	Asia, India	Herbivore	Early sauropod; grazed high vegetation; long neck	Early Jurassic, Toarcian (~180 Ma)	Kota	Kota Formation	South Asia	Early Jurassic, Toarcian	Well-accepted; early sauropod
Cetiosaurus oxoniensis	“Whale Lizard”	Order: Saurischia, Suborder: Sauropodomorpha, Infraorder: Sauropoda, Family: Cetiosauridae	Length: ~15–18 m (49–59 ft), Height: ~5 m (16.4 ft), Weight: ~10,000–20,000 kg (22,000–44,000 lbs)	Europe, England	Herbivore	Large, robust; grazed high vegetation; early sauropod	Middle Jurassic, Bathonian (~165 Ma)	Oxford	Forest Marble Formation	Western Europe	Middle Jurassic, Bathonian	Well-accepted; type genus
Vulcanodon karibaensis	“Volcano Tooth”	Order: Saurischia, Suborder: Sauropodomorpha, Infraorder: Sauropoda, Family: Cetiosauridae	Length: ~11 m (36 ft), Height: ~4 m (13 ft), Weight: ~3,000–5,000 kg (6,600–11,000 lbs)	Africa, Zimbabwe	Herbivore	Early sauropod; grazed mid to high vegetation; robust build	Early Jurassic, Hettangian (~200 Ma)	Lake Kariba	Vulcanodon Beds	Southern Africa	Early Jurassic, Hettangian	Well-accepted; transitional sauropod

Family: Brachiosauridae

Name	Name Means	Classification	Size Comparison	Place	Diet	Details	Time	Locality	Formation	Geographical	Geological	Status (2025)
Brachiosaurus altithorax	“Arm Lizard”	Order: Saurischia, Suborder: Sauropodomorpha, Infraorder: Sauropoda, Family: Brachiosauridae	Length: ~24–25 m (79–82 ft), Height: ~12 m (39 ft), Weight: ~30,000–50,000 kg (66,000–110,000 lbs)	North America, USA (Colorado), Asia, India	Herbivore	Long neck, high browser; grazed treetops; iconic sauropod	Late Jurassic, Kimmeridgian (~155 Ma)	Morrison, Kota	Morrison, Kota Formation	Western North America, South Asia	Late Jurassic, Kimmeridgian	Well-accepted; iconic sauropod
Sauroposeidon proteles	“Earthquake Lizard”	Order: Saurischia, Suborder: Sauropodomorpha, Infraorder: Sauropoda, Family: Brachiosauridae	Length: ~27–30 m (89–98 ft), Height: ~15 m (49 ft), Weight: ~50,000–60,000 kg (110,000–132,000 lbs)	North America, USA (Oklahoma)	Herbivore	Extremely tall; grazed highest vegetation; one of largest sauropods	Early Cretaceous, Albian (~110 Ma)	Antlers	Antlers Formation	Western North America	Early Cretaceous, Albian	Well-accepted; recently named (2000)

Family: Camarasauridae

Name	Name Means	Classification	Size Comparison	Place	Diet	Details	Time	Locality	Formation	Geographical	Geological	Status (2025)
Camarasaurus supremus	“Chambered Lizard”	Order: Saurischia, Suborder: Sauropodomorpha, Infraorder: Sauropoda, Family: Camarasauridae	Length: ~18–23 m (59–75 ft), Height: ~7 m (23 ft), Weight: ~20,000–30,000 kg (44,000–66,000 lbs)	North America, USA (Wyoming)	Herbivore	Robust, short neck; grazed mid to high vegetation; common sauropod	Late Jurassic, Kimmeridgian (~155 Ma)	Morrison	Morrison Formation	Western North America	Late Jurassic, Kimmeridgian	Well-accepted; abundant fossils
Euhelopus zdanskyi	“Good Marsh Foot”	Order: Saurischia, Suborder: Sauropodomorpha, Infraorder: Sauropoda, Family: Camarasauridae	Length: ~10–12 m (33–39 ft), Height: ~4 m (13 ft), Weight: ~5,000–10,000 kg (11,000–22,000 lbs)	Asia, China	Herbivore	Long neck, grazed high vegetation; Asian camarasaurid	Early Cretaceous, Barremian (~125 Ma)	Shandong	Mengyin Formation	East Asia	Early Cretaceous, Barremian	Well-accepted; distinct from other camarasaurids
Haplocanthosaurus delfsi	“Simple Spine Lizard”	Order: Saurischia, Suborder: Sauropodomorpha, Infraorder: Sauropoda, Family: Camarasauridae	Length: ~14–16 m (46–52 ft), Height: ~5 m (16.4 ft), Weight: ~10,000–15,000 kg (22,000–33,000 lbs)	North America, USA (Colorado)	Herbivore	Robust, short neck; grazed mid-level vegetation; poorly known	Late Jurassic, Kimmeridgian (~155 Ma)	Morrison	Morrison Formation	Western North America	Late Jurassic, Kimmeridgian	Well-accepted; possibly basal sauropod
Opisthocoelicaudia skarzynskii	“Rear Hollow Tail”	Order: Saurischia, Suborder: Sauropodomorpha, Infraorder: Sauropoda, Family: Camarasauridae	Length: ~12 m (39 ft), Height: ~4 m (13 ft), Weight: ~8,000–10,000 kg (17,600–22,000 lbs)	Asia, Mongolia	Herbivore	Robust, short tail; grazed mid-level vegetation; well-preserved	Late Cretaceous, Maastrichtian (~70 Ma)	Nemegt	Nemegt Formation	Central Asia	Late Cretaceous, Maastrichtian	Well-accepted; possibly titanosaurid

Family: Diplodocidae

Name	Name Means	Classification	Size Comparison	Place	Diet	Details	Time	Locality	Formation	Geographical	Geological	Status (2025)
Antarctosaurus giganteus	“Southern Lizard”	Order: Saurischia, Suborder: Sauropodomorpha, Infraorder: Sauropoda, Family: Diplodocidae	Length: ~15–18 m (49–59 ft), Height: ~5 m (16.4 ft), Weight: ~10,000–20,000 kg (22,000–44,000 lbs)	South America, Argentina	Herbivore	Long neck and tail; grazed mid to high vegetation; poorly known	Late Cretaceous, Campanian (~75 Ma)	Anacleto	Anacleto Formation	South America	Late Cretaceous, Campanian	Debated; likely titanosaurid, not diplodocid
Apatosaurus ajax	“Deceptive Lizard”	Order: Saurischia, Suborder: Sauropodomorpha, Infraorder: Sauropoda, Family: Diplodocidae	Length: ~21–23 m (69–75 ft), Height: ~6 m (19.7 ft), Weight: ~20,000–30,000 kg (44,000–66,000 lbs)	North America, USA (Wyoming)	Herbivore	Long neck and whip-like tail; grazed mid-level vegetation; iconic sauropod	Late Jurassic, Kimmeridgian (~155 Ma)	Morrison	Morrison Formation	Western North America	Late Jurassic, Kimmeridgian	Well-accepted; distinct from Brontosaurus
Dicraeosaurus sattleri	“Forked Lizard”	Order: Saurischia, Suborder: Sauropodomorpha, Infraorder: Sauropoda, Family: Diplodocidae	Length: ~12–14 m (39–46 ft), Height: ~4 m (13 ft), Weight: ~5,000–10,000 kg (11,000–22,000 lbs)	Africa, Tanzania	Herbivore	Short neck, forked spines; grazed low to mid vegetation; smaller diplodocid	Late Jurassic, Kimmeridgian (~155 Ma)	Tendaguru	Tendaguru Formation	East Africa	Late Jurassic, Kimmeridgian	Well-accepted; distinct diplodocid
Diplodocus hallorum	“Double Beam”	Order: Saurischia, Suborder: Sauropodomorpha, Infraorder: Sauropoda, Family: Diplodocidae	Length: ~24–30 m (79–98 ft), Height: ~5 m (16.4 ft), Weight: ~15,000–25,000 kg (33,000–55,000 lbs)	North America, USA (Wyoming)	Herbivore	Very long neck and tail; grazed mid-level vegetation; whip-like tail	Late Jurassic, Kimmeridgian (~155 Ma)	Morrison	Morrison Formation	Western North America	Late Jurassic, Kimmeridgian	Well-accepted; possibly synonymous with D. carnegii
Mamenchisaurus sinocanadorum	“Mamenchi Lizard”	Order: Saurischia, Suborder: Sauropodomorpha, Infraorder: Sauropoda, Family: Diplodocidae	Length: ~25–35 m (82–115 ft), Height: ~7 m (23 ft), Weight: ~25,000–50,000 kg (55,000–110,000 lbs)	Asia, China	Herbivore	Extremely long neck; grazed high vegetation; Asian sauropod	Late Jurassic, Oxfordian (~160 Ma)	Sichuan	Shaximiao Formation	East Asia	Late Jurassic, Oxfordian	Well-accepted; one of longest necks
Supersaurus vivianae	“Super Lizard”	Order: Saurischia, Suborder: Sauropodomorpha, Infraorder: Sauropoda, Family: Diplodocidae	Length: ~30–35 m (98–115 ft), Height: ~7 m (23 ft), Weight: ~30,000–40,000 kg (66,000–88,000 lbs)	North America, USA (Colorado)	Herbivore	Very long neck and tail; grazed high vegetation; one of largest sauropods	Late Jurassic, Kimmeridgian (~155 Ma)	Morrison	Morrison Formation	Western North America	Late Jurassic, Kimmeridgian	Well-accepted; well-studied

Family: Titanosauridae

Name	Name Means	Classification	Size Comparison	Place	Diet	Details	Time	Locality	Formation	Geographical	Geological	Status (2025)
Alamosaurus sanjuanensis	“Alamo Lizard”	Order: Saurischia, Suborder: Sauropodomorpha, Infraorder: Sauropoda, Family: Titanosauridae	Length: ~20–30 m (66–98 ft), Height: ~7 m (23 ft), Weight: ~30,000–50,000 kg (66,000–110,000 lbs)	North America, USA (New Mexico)	Herbivore	Large titanosaur; grazed high vegetation; lived with T. rex	Late Cretaceous, Maastrichtian (~70 Ma)	San Juan Basin	Ojo Alamo Formation	Western North America	Late Cretaceous, Maastrichtian	Well-accepted; common North American titanosaur
Dreadnoughtus schrani	“Fears Nothing”	Order: Saurischia, Suborder: Sauropodomorpha, Infraorder: Sauropoda, Family: Titanosauridae	Length: ~26 m (85 ft), Height: ~7 m (23 ft), Weight: ~50,000–60,000 kg (110,000–132,000 lbs)	South America, Argentina	Herbivore	Massive titanosaur; grazed high vegetation; well-preserved	Late Cretaceous, Campanian (~75 Ma)	Cerro Fortaleza	Cerro Fortaleza Formation	South America	Late Cretaceous, Campanian	Well-accepted; recently named (2014)
Nemegtosaurus mongoliensis	“Nemegt Lizard”	Order: Saurischia, Suborder: Sauropodomorpha, Infraorder: Sauropoda, Family: Titanosauridae	Length: ~12–15 m (39–49 ft), Height: ~4 m (13 ft), Weight: ~10,000–15,000 kg (22,000–33,000 lbs)	Asia, Mongolia	Herbivore	Long neck, grazed high vegetation; smaller titanosaur	Late Cretaceous, Maastrichtian (~70 Ma)	Nemegt	Nemegt Formation	Central Asia	Late Cretaceous, Maastrichtian	Well-accepted; possibly synonymous with Opisthocoelicaudia
Patagotitan mayorum	“Patagonian Titan”	Order: Saurischia, Suborder: Sauropodomorpha, Infraorder: Sauropoda, Family: Titanosauridae	Length: ~35–37 m (115–121 ft), Height: ~8 m (26 ft), Weight: ~60,000–70,000 kg (132,000–154,000 lbs)	South America, Argentina	Herbivore	One of largest dinosaurs; grazed high vegetation; massive	Late Cretaceous, Albian (~100 Ma)	Chubut	Cerro Barcino Formation	South America	Late Cretaceous, Albian	Well-accepted; recently named (2017)
Saltasaurus loricatus	“Salta Lizard”	Order: Saurischia, Suborder: Sauropodomorpha, Infraorder: Sauropoda, Family: Titanosauridae	Length: ~12–15 m (39–49 ft), Height: ~4 m (13 ft), Weight: ~7,000–10,000 kg (15,400–22,000 lbs)	South America, Argentina	Herbivore	Armored titanosaur; grazed mid-level vegetation; osteoderms	Late Cretaceous, Campanian (~75 Ma)	Salta	Lecho Formation	South America	Late Cretaceous, Campanian	Well-accepted; first titanosaur with armor

Cerapoda Chart Tables – Beaked, Horned, and Armored

Narrated by Annemarie Blanco as Teodora Villavicencio

¡Órale, amigos! It’s Teodora Villavicencio, charging through the Mesozoic with the coolest dinos around—cerapods, the Beaked, Horned, and Armored crew! These plant-munching, head-butting, frill-sporting champs were the ultimate survivors. From zippy Hypsilophodon dodging predators to Triceratops staring down a T. rex with its massive horns, and Pachycephalosaurus smashing skulls like nobody’s business, these dinos had style and grit. Check the tables below for the full scoop on these epic herbivores!

Clade: Cerapoda, Suborder: Cerapoda, Infraorder: Ornithopoda

Family: Fabrosauridae

Name	Name Means	Classification	Size Comparison	Place	Diet	Details	Time	Locality	Formation	Geographical	Geological	Status (2025)
Lesothosaurus diagnosticus	“Lesotho Lizard”	Order: Ornithischia, Suborder: Cerapoda, Infraorder: Ornithopoda, Family: Fabrosauridae	Length: ~2 m (6.6 ft), Height: ~0.7 m (2.3 ft), Weight: ~10–20 kg (22–44 lbs)	Africa, Lesotho	Herbivore	Small, bipedal; grazed low vegetation; early ornithopod	Early Jurassic, Hettangian (~200 Ma)	Upper Karoo	Elliot Formation	Southern Africa	Early Jurassic, Hettangian	Well-accepted; possibly basal ornithischian
Scutellosaurus lawleri	“Little Shield Lizard”	Order: Ornithischia, Suborder: Cerapoda, Infraorder: Ornithopoda, Family: Fabrosauridae	Length: ~1.2 m (4 ft), Height: ~0.5 m (1.6 ft), Weight: ~3–5 kg (6.6–11 lbs)	North America, USA (Arizona)	Herbivore	Small, bipedal; armored with osteoderms; early armored ornithischian	Early Jurassic, Sinemurian (~190 Ma)	Kayenta	Kayenta Formation	Western North America	Early Jurassic, Sinemurian	Well-accepted; transitional to thyreophorans

Family: Heterodontosauridae

Name	Name Means	Classification	Size Comparison	Place	Diet	Details	Time	Locality	Formation	Geographical	Geological	Status (2025)
Echinodon becklesii	“Hedgehog Tooth”	Order: Ornithischia, Suborder: Cerapoda, Infraorder: Ornithopoda, Family: Heterodontosauridae	Length: ~0.6–1 m (2–3.3 ft), Height: ~0.3 m (1 ft), Weight: ~1–2 kg (2.2–4.4 lbs)	Europe, England	Herbivore/Omnivore	Tiny, tusked; grazed low vegetation; possibly omnivorous	Early Cretaceous, Berriasian (~140 Ma)	Purbeck	Purbeck Group	Western Europe	Early Cretaceous, Berriasian	Well-accepted; poorly known
Geranosaurus atavus	“Crane Lizard”	Order: Ornithischia, Suborder: Cerapoda, Infraorder: Ornithopoda, Family: Heterodontosauridae	Length: ~0.8 m (2.6 ft), Height: ~0.3 m (1 ft), Weight: ~1–2 kg (2.2–4.4 lbs)	Africa, South Africa	Herbivore/Omnivore	Tiny, bipedal; tusked; likely ate plants and small animals	Early Jurassic, Hettangian (~200 Ma)	Upper Karoo	Elliot Formation	Southern Africa	Early Jurassic, Hettangian	Debated; possibly dubious due to fragmentary fossils
Heterodontosaurus tucki	“Different-Toothed Lizard”	Order: Ornithischia, Suborder: Cerapoda, Infraorder: Ornithopoda, Family: Heterodontosauridae	Length: ~1.2 m (4 ft), Height: ~0.5 m (1.6 ft), Weight: ~2–5 kg (4.4–11 lbs)	Africa, South Africa	Herbivore/Omnivore	Tusked, bipedal; grazed low vegetation; possibly omnivorous	Early Jurassic, Hettangian (~200 Ma)	Upper Karoo	Elliot Formation	Southern Africa	Early Jurassic, Hettangian	Well-accepted; well-studied heterodontosaurid
Manidens condorensis	“Hand Tooth”	Order: Ornithischia, Suborder: Cerapoda, Infraorder: Ornithopoda, Family: Heterodontosauridae	Length: ~0.7–1 m (2.3–3.3 ft), Height: ~0.3 m (1 ft), Weight: ~1–2 kg (2.2–4.4 lbs)	South America, Argentina	Herbivore/Omnivore	Tiny, tusked; grazed low vegetation; early heterodontosaurid	Middle Jurassic, Toarcian (~180 Ma)	Cañadón Asfalto	Cañadón Asfalto Formation	South America	Middle Jurassic, Toarcian	Well-accepted; recently named (2011)
Pisanosaurus mertii	“Pisano’s Lizard”	Order: Ornithischia, Suborder: Cerapoda, Infraorder: Ornithopoda, Family: Heterodontosauridae	Length: ~1 m (3.3 ft), Height: ~0.4 m (1.3 ft), Weight: ~1–2 kg (2.2–4.4 lbs)	South America, Argentina	Herbivore	Tiny, bipedal; grazed low vegetation; possibly basal ornithischian	Late Triassic, Norian (~210 Ma)	Ischigualasto	Ischigualasto Formation	South America	Late Triassic, Norian	Debated; possibly not ornithischian

Family: Hypsilophodontidae

Name	Name Means	Classification	Size Comparison	Place	Diet	Details	Time	Locality	Formation	Geographical	Geological	Status (2025)
Callovosaurus leedsi	“Callovian Lizard”	Order: Ornithischia, Suborder: Cerapoda, Infraorder: Ornithopoda, Family: Hypsilophodontidae	Length: ~3.5 m (11.5 ft), Height: ~1.2 m (4 ft), Weight: ~50–100 kg (110–220 lbs)	Europe, England	Herbivore	Bipedal, agile; grazed low to mid vegetation; early iguanodontian	Middle Jurassic, Callovian (~165 Ma)	Peterborough	Oxford Clay Formation	Western Europe	Middle Jurassic, Callovian	Well-accepted; possibly basal iguanodontian
Dryosaurus elderae	“Tree Lizard”	Order: Ornithischia, Suborder: Cerapoda, Infraorder: Ornithopoda, Family: Hypsilophodontidae	Length: ~3–4 m (10–13 ft), Height: ~1.5 m (5 ft), Weight: ~80–100 kg (176–220 lbs)	North America, USA (Utah)	Herbivore	Fast, bipedal; grazed low vegetation; lived in forests	Late Jurassic, Kimmeridgian (~155 Ma)	Morrison	Morrison Formation	Western North America	Late Jurassic, Kimmeridgian	Well-accepted; common hypsilophodont
Hypsilophodon foxii	“High-Ridge Tooth”	Order: Ornithischia, Suborder: Cerapoda, Infraorder: Ornithopoda, Family: Hypsilophodontidae	Length: ~2 m (6.6 ft), Height: ~0.7 m (2.3 ft), Weight: ~20–30 kg (44–66 lbs)	Europe, England	Herbivore	Small, fast; grazed low vegetation; agile runner	Early Cretaceous, Barremian (~125 Ma)	Isle of Wight	Wessex Formation	Western Europe	Early Cretaceous, Barremian	Well-accepted; iconic hypsilophodont
Nanosaurus agilis	“Dwarf Lizard”	Order: Ornithischia, Suborder: Cerapoda, Infraorder: Ornithopoda, Family: Hypsilophodontidae	Length: ~2 m (6.6 ft), Height: ~0.7 m (2.3 ft), Weight: ~20–30 kg (44–66 lbs)	North America, USA (Colorado)	Herbivore	Small, bipedal; grazed low vegetation; poorly known	Late Jurassic, Kimmeridgian (~155 Ma)	Morrison	Morrison Formation	Western North America	Late Jurassic, Kimmeridgian	Debated; possibly synonymous with Othnielosaurus
Parksosaurus warreni	“Park’s Lizard”	Order: Ornithischia, Suborder: Cerapoda, Infraorder: Ornithopoda, Family: Hypsilophodontidae	Length: ~2.5 m (8.2 ft), Height: ~1 m (3.3 ft), Weight: ~30–50 kg (66–110 lbs)	North America, Canada	Herbivore	Small, fast; grazed low vegetation; lived in plains	Late Cretaceous, Maastrichtian (~70 Ma)	Alberta	Horseshoe Canyon Formation	Western North America	Late Cretaceous, Maastrichtian	Well-accepted; poorly known
Thescelosaurus garbanii	“Marvelous Lizard”	Order: Ornithischia, Suborder: Cerapoda, Infraorder: Ornithopoda, Family: Hypsilophodontidae	Length: ~3–4 m (10–13 ft), Height: ~1.2 m (4 ft), Weight: ~80–100 kg (176–220 lbs)	North America, USA (Montana)	Herbivore	Bipedal, robust; grazed low vegetation; possible heart fossil	Late Cretaceous, Maastrichtian (~70 Ma)	Hell Creek	Hell Creek Formation	Western North America	Late Cretaceous, Maastrichtian	Well-accepted; recently named (2000)
Valdosaurus canaliculatus	“Weald Lizard”	Order: Ornithischia, Suborder: Cerapoda, Infraorder: Ornithopoda, Family: Hypsilophodontidae	Length: ~3–4 m (10–13 ft), Height: ~1.2 m (4 ft), Weight: ~50–100 kg (110–220 lbs)	Europe, England	Herbivore	Bipedal, agile; grazed low to mid vegetation; poorly known	Early Cretaceous, Barremian (~125 Ma)	Isle of Wight	Wessex Formation	Western Europe	Early Cretaceous, Barremian	Well-accepted; possibly iguanodontian
Zephyrosaurus schaffi	“West Wind Lizard”	Order: Ornithischia, Suborder: Cerapoda, Infraorder: Ornithopoda, Family: Hypsilophodontidae	Length: ~1.8 m (6 ft), Height: ~0.7 m (2.3 ft), Weight: ~20–30 kg (44–66 lbs)	North America, USA (Montana)	Herbivore	Small, fast; grazed low vegetation; poorly known	Early Cretaceous, Aptian (~115 Ma)	Cloverly	Cloverly Formation	Western North America	Early Cretaceous, Aptian	Well-accepted; poorly known

Family: Iguanodontidae

Name	Name Means	Classification	Size Comparison	Place	Diet	Details	Time	Locality	Formation	Geographical	Geological	Status (2025)
Camptosaurus dispar	“Bent Lizard”	Order: Ornithischia, Suborder: Cerapoda, Infraorder: Ornithopoda, Family: Iguanodontidae	Length: ~6–8 m (20–26 ft), Height: ~2 m (6.6 ft), Weight: ~800–1,000 kg (1,760–2,200 lbs)	North America, USA (Wyoming)	Herbivore	Bipedal/quadrupedal; grazed mid-level vegetation; early iguanodont	Late Jurassic, Kimmeridgian (~155 Ma)	Morrison	Morrison Formation	Western North America	Late Jurassic, Kimmeridgian	Well-accepted; common iguanodont
Iguanodon bernissartensis	“Iguana Tooth”	Order: Ornithischia, Suborder: Cerapoda, Infraorder: Ornithopoda, Family: Iguanodontidae	Length: ~9–11 m (30–36 ft), Height: ~3 m (10 ft), Weight: ~3,000–5,000 kg (6,600–11,000 lbs)	Europe, Belgium	Herbivore	Large, bipedal/quadrupedal; grazed mid to high vegetation; thumb spikes	Early Cretaceous, Barremian (~125 Ma)	Bernissart	Sainte-Barbe Clays	Western Europe	Early Cretaceous, Barremian	Well-accepted; iconic iguanodont
Mantellisaurus atherfieldensis	“Mantell’s Lizard”	Order: Ornithischia, Suborder: Cerapoda, Infraorder: Ornithopoda, Family: Iguanodontidae	Length: ~7–8 m (23–26 ft), Height: ~2.5 m (8.2 ft), Weight: ~1,000–2,000 kg (2,200–4,400 lbs)	Europe, England	Herbivore	Smaller iguanodont; grazed mid-level vegetation; agile	Early Cretaceous, Barremian (~125 Ma)	Isle of Wight	Wessex Formation	Western Europe	Early Cretaceous, Barremian	Well-accepted; distinct from Iguanodon
Muttaburrasaurus langdoni	“Muttaburra Lizard”	Order: Ornithischia, Suborder: Cerapoda, Infraorder: Ornithopoda, Family: Iguanodontidae	Length: ~7–9 m (23–30 ft), Height: ~2.5 m (8.2 ft), Weight: ~1,000–2,000 kg (2,200–4,400 lbs)	Australia	Herbivore	Robust, nasal crest; grazed mid-level vegetation; Australian iguanodont	Early Cretaceous, Albian (~110 Ma)	Muttaburra	Mackunda Formation	Australia	Early Cretaceous, Albian	Well-accepted; unique nasal structure
Ouranosaurus nigeriensis	“Brave Lizard”	Order: Ornithischia, Suborder: Cerapoda, Infraorder: Ornithopoda, Family: Iguanodontidae	Length: ~7–8 m (23–26 ft), Height: ~3 m (10 ft), Weight: ~2,000–3,000 kg (4,400–6,600 lbs)	Africa, Niger	Herbivore	Sail-backed; grazed mid to high vegetation; lived in floodplains	Early Cretaceous, Aptian (~115 Ma)	Gadoufaoua	Elrhaz Formation	North Africa	Early Cretaceous, Aptian	Well-accepted; distinctive sail
Probactrosaurus gobiensis	“Before Bactrosaurus”	Order: Ornithischia, Suborder: Cerapoda, Infraorder: Ornithopoda, Family: Iguanodontidae	Length: ~5–6 m (16–20 ft), Height: ~2 m (6.6 ft), Weight: ~1,000 kg (2,200 lbs)	Asia, China	Herbivore	Bipedal/quadrupedal; grazed mid-level vegetation; transitional to hadrosaurs	Early Cretaceous, Albian (~110 Ma)	Dashuiguo	Dashuiguo Formation	East Asia	Early Cretaceous, Albian	Well-accepted; early hadrosauriform
Tenontosaurus dossi	“Sinew Lizard”	Order: Ornithischia, Suborder: Cerapoda, Infraorder: Ornithopoda, Family: Iguanodontidae	Length: ~6–8 m (20–26 ft), Height: ~2 m (6.6 ft), Weight: ~1,000–2,000 kg (2,200–4,400 lbs)	North America, USA (Texas)	Herbivore	Long tail, bipedal/quadrupedal; grazed mid-level vegetation; prey for Deinonychus	Early Cretaceous, Aptian (~115 Ma)	Twin Mountains	Twin Mountains Formation	Western North America	Early Cretaceous, Aptian	Well-accepted; recently named (1997)

Family: Hadrosauridae (Saurolophinae)

Name	Name Means	Classification	Size Comparison	Place	Diet	Details	Time	Locality	Formation	Geographical	Geological	Status (2025)
Bactrosaurus johnsoni	“Club Lizard”	Order: Ornithischia, Suborder: Cerapoda, Infraorder: Ornithopoda, Family: Hadrosauridae (Saurolophinae)	Length: ~6 m (20 ft), Height: ~2 m (6.6 ft), Weight: ~1,000–2,000 kg (2,200–4,400 lbs)	Asia, China	Herbivore	Early hadrosaur; grazed mid-level vegetation; transitional form	Early Cretaceous, Albian (~110 Ma)	Iren Dabasu	Iren Dabasu Formation	East Asia	Early Cretaceous, Albian	Well-accepted; early saurolophine
Brachylophosaurus canadensis	“Short-Crested Lizard”	Order: Ornithischia, Suborder: Cerapoda, Infraorder: Ornithopoda, Family: Hadrosauridae (Saurolophinae)	Length: ~9–11 m (30–36 ft), Height: ~3 m (10 ft), Weight: ~3,000–4,000 kg (6,600–8,800 lbs)	North America, Canada	Herbivore	Flat-headed; grazed mid-level vegetation; well-preserved fossils	Late Cretaceous, Campanian (~75 Ma)	Judith River	Judith River Formation	Western North America	Late Cretaceous, Campanian	Well-accepted; well-studied
Edmontosaurus regalis	“Edmonton Lizard”	Order: Ornithischia, Suborder: Cerapoda, Infraorder: Ornithopoda, Family: Hadrosauridae (Saurolophinae)	Length: ~9–12 m (30–39 ft), Height: ~3 m (10 ft), Weight: ~3,000–4,000 kg (6,600–8,800 lbs)	North America, Canada	Herbivore	Flat-headed; grazed mid-level vegetation; social, lived in herds	Late Cretaceous, Maastrichtian (~70 Ma)	Edmonton	Horseshoe Canyon Formation	Western North America	Late Cretaceous, Maastrichtian	Well-accepted; iconic hadrosaur
Hadrosaurus foulkii	“Sturdy Lizard”	Order: Ornithischia, Suborder: Cerapoda, Infraorder: Ornithopoda, Family: Hadrosauridae (Saurolophinae)	Length: ~7–9 m (23–30 ft), Height: ~2.5 m (8.2 ft), Weight: ~2,000–3,000 kg (4,400–6,600 lbs)	North America, USA (New Jersey)	Herbivore	Flat-headed; grazed mid-level vegetation; first named hadrosaur	Late Cretaceous, Campanian (~75 Ma)	Woodbury	Woodbury Formation	Eastern North America	Late Cretaceous, Campanian	Well-accepted; poorly known
Kritosaurus navajovius	“Separated Lizard”	Order: Ornithischia, Suborder: Cerapoda, Infraorder: Ornithopoda, Family: Hadrosauridae (Saurolophinae)	Length: ~9 m (30 ft), Height: ~3 m (10 ft), Weight: ~3,000–4,000 kg (6,600–8,800 lbs)	North America, USA (New Mexico)	Herbivore	Flat-headed; grazed mid-level vegetation; lived in floodplains	Late Cretaceous, Campanian (~75 Ma)	Kirtland	Kirtland Formation	Western North America	Late Cretaceous, Campanian	Well-accepted; possibly synonymous with Gryposaurus
Maiasaura peeblesorum	“Good Mother Lizard”	Order: Ornithischia, Suborder: Cerapoda, Infraorder: Ornithopoda, Family: Hadrosauridae (Saurolophinae)	Length: ~9 m (30 ft), Height: ~3 m (10 ft), Weight: ~3,000–4,000 kg (6,600–8,800 lbs)	North America, USA (Montana)	Herbivore	Flat-headed; grazed mid-level vegetation; nested in colonies	Late Cretaceous, Campanian (~75 Ma)	Two Medicine	Two Medicine Formation	Western North America	Late Cretaceous, Campanian	Well-accepted; evidence of parental care
Prosaurolophus maximus	“Before Saurolophus”	Order: Ornithischia, Suborder: Cerapoda, Infraorder: Ornithopoda, Family: Hadrosauridae (Saurolophinae)	Length: ~8–9 m (26–30 ft), Height: ~3 m (10 ft), Weight: ~2,000–3,000 kg (4,400–6,600 lbs)	North America, Canada	Herbivore	Small crest; grazed mid-level vegetation; social	Late Cretaceous, Campanian (~75 Ma)	Dinosaur Park	Dinosaur Park Formation	Western North America	Late Cretaceous, Campanian	Well-accepted; common saurolophine
Saurolophus osborni	“Crested Lizard”	Order: Ornithischia, Suborder: Cerapoda, Infraorder: Ornithopoda, Family: Hadrosauridae (Saurolophinae)	Length: ~9–12 m (30–39 ft), Height: ~3 m (10 ft), Weight: ~3,000–4,000 kg (6,600–8,800 lbs)	North America, Canada	Herbivore	Long crest; grazed mid-level vegetation; lived in herds	Late Cretaceous, Maastrichtian (~70 Ma)	Horseshoe Canyon	Horseshoe Canyon Formation	Western North America	Late Cretaceous, Maastrichtian	Well-accepted; also found in Asia
Shantungosaurus giganteus	“Shandong Lizard”	Order: Ornithischia, Suborder: Cerapoda, Infraorder: Ornithopoda, Family: Hadrosauridae (Saurolophinae)	Length: ~14–15 m (46–49 ft), Height: ~6 m (19.7 ft), Weight: ~10,000–15,000 kg (22,000–33,000 lbs)	Asia, China	Herbivore	Largest hadrosaur; grazed mid-level vegetation; robust	Late Cretaceous, Campanian (~75 Ma)	Shandong	Wangshi Group	East Asia	Late Cretaceous, Campanian	Well-accepted; one of largest ornithopods

Family: Hadrosauridae (Lambeosaurinae)

Name	Name Means	Classification	Size Comparison	Place	Diet	Details	Time	Locality	Formation	Geographical	Geological	Status (2025)
Corythosaurus casuarius	“Helmet Lizard”	Order: Ornithischia, Suborder: Cerapoda, Infraorder: Ornithopoda, Family: Hadrosauridae (Lambeosaurinae)	Length: ~9–10 m (30–33 ft), Height: ~3 m (10 ft), Weight: ~3,000–4,000 kg (6,600–8,800 lbs)	North America, Canada	Herbivore	Hollow crest; grazed mid-level vegetation; vocalized via crest	Late Cretaceous, Campanian (~75 Ma)	Dinosaur Park	Dinosaur Park Formation	Western North America	Late Cretaceous, Campanian	Well-accepted; well-studied lambeosaurine
Hypacrosaurus stebingeri	“Near High Lizard”	Order: Ornithischia, Suborder: Cerapoda, Infraorder: Ornithopoda, Family: Hadrosauridae (Lambeosaurinae)	Length: ~9 m (30 ft), Height: ~3 m (10 ft), Weight: ~3,000–4,000 kg (6,600–8,800 lbs)	North America, USA (Montana)	Herbivore	Tall crest; grazed mid-level vegetation; nested in colonies	Late Cretaceous, Campanian (~75 Ma)	Two Medicine	Two Medicine Formation	Western North America	Late Cretaceous, Campanian	Well-accepted; evidence of growth stages
Lambeosaurus magnicristatus	“Lambe’s Lizard”	Order: Ornithischia, Suborder: Cerapoda, Infraorder: Ornithopoda, Family: Hadrosauridae (Lambeosaurinae)	Length: ~9–10 m (30–33 ft), Height: ~3 m (10 ft), Weight: ~3,000–4,000 kg (6,600–8,800 lbs)	North America, Canada	Herbivore	Large hatchet-shaped crest; grazed mid-level vegetation; vocal	Late Cretaceous, Campanian (~75 Ma)	Dinosaur Park	Dinosaur Park Formation	Western North America	Late Cretaceous, Campanian	Well-accepted; distinct crest shape
Olorotitan arharensis	“Swan Titan”	Order: Ornithischia, Suborder: Cerapoda, Infraorder: Ornithopoda, Family: Hadrosauridae (Lambeosaurinae)	Length: ~8–10 m (26–33 ft), Height: ~3 m (10 ft), Weight: ~3,000–4,000 kg (6,600–8,800 lbs)	Asia, Russia	Herbivore	Fan-shaped crest; grazed mid-level vegetation; well-preserved	Late Cretaceous, Maastrichtian (~70 Ma)	Amur Region	Tsagayan Formation	East Asia	Late Cretaceous, Maastrichtian	Well-accepted; recently named (2003)
Parasaurolophus walkeri	“Near Crested Lizard”	Order: Ornithischia, Suborder: Cerapoda, Infraorder: Ornithopoda, Family: Hadrosauridae (Lambeosaurinae)	Length: ~9–10 m (30–33 ft), Height: ~3 m (10 ft), Weight: ~2,500–3,500 kg (5,500–7,700 lbs)	North America, Canada	Herbivore	Long tubular crest; grazed mid-level vegetation; vocalized	Late Cretaceous, Campanian (~75 Ma)	Dinosaur Park	Dinosaur Park Formation	Western North America	Late Cretaceous, Campanian	Well-accepted; iconic lambeosaurine
Tsintaosaurus spinorhinus	“Qingdao Lizard”	Order: Ornithischia, Suborder: Cerapoda, Infraorder: Ornithopoda, Family: Hadrosauridae (Lambeosaurinae)	Length: ~8–10 m (26–33 ft), Height: ~3 m (10 ft), Weight: ~2,500–3,500 kg (5,500–7,700 lbs)	Asia, China	Herbivore	Unicorn-like crest; grazed mid-level vegetation; debated crest shape	Late Cretaceous, Campanian (~75 Ma)	Shandong	Wangshi Group	East Asia	Late Cretaceous, Campanian	Well-accepted; crest shape debated

Clade: Cerapoda, Suborder: Cerapoda, Infraorder: Ceratopia

Family: Pachycephalosauridae

Name	Name Means	Classification	Size Comparison	Place	Diet	Details	Time	Locality	Formation	Geographical	Geological	Status (2025)
Alaskacephale gangloffi	“Alaska Head”	Order: Ornithischia, Suborder: Cerapoda, Infraorder: Ceratopia, Family: Pachycephalosauridae	Length: ~2–3 m (6.6–10 ft), Height: ~1 m (3.3 ft), Weight: ~50–100 kg (110–220 lbs)	North America, USA (Alaska)	Herbivore	Thick-skulled; likely head-butted; grazed low vegetation	Late Cretaceous, Campanian (~75 Ma)	North Slope	Prince Creek Formation	Arctic North America	Late Cretaceous, Campanian	Well-accepted; recently named (2006)
Gravitholus albertae	“Heavy Skull”	Order: Ornithischia, Suborder: Cerapoda, Infraorder: Ceratopia, Family: Pachycephalosauridae	Length: ~2–3 m (6.6–10 ft), Height: ~1 m (3.3 ft), Weight: ~50–100 kg (110–220 lbs)	North America, Canada	Herbivore	Thick-skulled; likely head-butted; poorly known	Late Cretaceous, Campanian (~75 Ma)	Alberta	Dinosaur Park Formation	Western North America	Late Cretaceous, Campanian	Debated; possibly synonymous with Stegoceras
Homalocephale calathocercos	“Flat Head”	Order: Ornithischia, Suborder: Cerapoda, Infraorder: Ceratopia, Family: Pachycephalosauridae	Length: ~1.5–2 m (5–6.6 ft), Height: ~0.7 m (2.3 ft), Weight: ~30–50 kg (66–110 lbs)	Asia, Mongolia	Herbivore	Flat-skulled; grazed low vegetation; possibly head-butted	Late Cretaceous, Maastrichtian (~70 Ma)	Nemegt	Nemegt Formation	Central Asia	Late Cretaceous, Maastrichtian	Well-accepted; possibly juvenile Prenocephale
Pachycephalosaurus wyomingensis	“Thick-Headed Lizard”	Order: Ornithischia, Suborder: Cerapoda, Infraorder: Ceratopia, Family: Pachycephalosauridae	Length: ~4–5 m (13–16 ft), Height: ~1.5 m (5 ft), Weight: ~300–450 kg (660–990 lbs)	North America, USA (Wyoming)	Herbivore	Thick domed skull; head-butted rivals; grazed low to mid vegetation	Late Cretaceous, Maastrichtian (~70 Ma)	Hell Creek	Hell Creek Formation	Western North America	Late Cretaceous, Maastrichtian	Well-accepted; iconic pachycephalosaur
Prenocephale prenes	“Sloping Head”	Order: Ornithischia, Suborder: Cerapoda, Infraorder: Ceratopia, Family: Pachycephalosauridae	Length: ~2–3 m (6.6–10 ft), Height: ~1 m (3.3 ft), Weight: ~50–100 kg (110–220 lbs)	Asia, Mongolia	Herbivore	Domed skull; likely head-butted; grazed low vegetation	Late Cretaceous, Maastrichtian (~70 Ma)	Nemegt	Nemegt Formation	Central Asia	Late Cretaceous, Maastrichtian	Well-accepted; well-preserved
Sphaerotholus buchholtzae	“Sphere Skull”	Order: Ornithischia, Suborder: Cerapoda, Infraorder: Ceratopia, Family: Pachycephalosauridae	Length: ~2–3 m (6.6–10 ft), Height: ~1 m (3.3 ft), Weight: ~50–100 kg (110–220 lbs)	North America, USA (Montana)	Herbivore	Domed skull; likely head-butted; grazed low vegetation	Late Cretaceous, Maastrichtian (~70 Ma)	Hell Creek	Hell Creek Formation	Western North America	Late Cretaceous, Maastrichtian	Well-accepted; recently named (2002)
Stegoceras validum	“Roof Horn”	Order: Ornithischia, Suborder: Cerapoda, Infraorder: Ceratopia, Family: Pachycephalosauridae	Length: ~2–3 m (6.6–10 ft), Height: ~1 m (3.3 ft), Weight: ~50–100 kg (110–220 lbs)	North America, Canada	Herbivore	Domed skull; likely head-butted; grazed low vegetation	Late Cretaceous, Campanian (~75 Ma)	Dinosaur Park	Dinosaur Park Formation	Western North America	Late Cretaceous, Campanian	Well-accepted; common pachycephalosaur

Family: Psittacosauridae

Name	Name Means	Classification	Size Comparison	Place	Diet	Details	Time	Locality	Formation	Geographical	Geological	Status (2025)
Psittacosaurus meileyingensis	“Parrot Lizard”	Order: Ornithischia, Suborder: Cerapoda, Infraorder: Ceratopia, Family: Psittacosauridae	Length: ~1–2 m (3.3–6.6 ft), Height: ~0.5 m (1.6 ft), Weight: ~20–30 kg (44–66 lbs)	Asia, China	Herbivore	Beaked, bipedal/quadrupedal; grazed low vegetation; bristled tail	Early Cretaceous, Barremian (~125 Ma)	Liaoning	Yixian Formation	East Asia	Early Cretaceous, Barremian	Well-accepted; well-preserved with skin impressions

Family: Protoceratopidae

Name	Name Means	Classification	Size Comparison	Place	Diet	Details	Time	Locality	Formation	Geographical	Geological	Status (2025)
Bagaceratops rozhdestvenskyi	“Small Horned Face”	Order: Ornithischia, Suborder: Cerapoda, Infraorder: Ceratopia, Family: Protoceratopidae	Length: ~1–2 m (3.3–6.6 ft), Height: ~0.5 m (1.6 ft), Weight: ~20–30 kg (44–66 lbs)	Asia, Mongolia	Herbivore	Small, frilled; grazed low vegetation; early ceratopsian	Late Cretaceous, Campanian (~75 Ma)	Gobi Desert	Barun Goyot Formation	Central Asia	Late Cretaceous, Campanian	Well-accepted; well-preserved
Leptoceratops gracilis	“Slender Horned Face”	Order: Ornithischia, Suborder: Cerapoda, Infraorder: Ceratopia, Family: Protoceratopidae	Length: ~2 m (6.6 ft), Height: ~0.7 m (2.3 ft), Weight: ~30–50 kg (66–110 lbs)	North America, USA (Montana)	Herbivore	Small, frill-less; grazed low vegetation; agile ceratopsian	Late Cretaceous, Maastrichtian (~70 Ma)	Hell Creek	Hell Creek Formation	Western North America	Late Cretaceous, Maastrichtian	Well-accepted; basal ceratopsian
Microceratus gobiensis	“Tiny Horned”	Order: Ornithischia, Suborder: Cerapoda, Infraorder: Ceratopia, Family: Protoceratopidae	Length: ~0.8–1 m (2.6–3.3 ft), Height: ~0.3 m (1 ft), Weight: ~5–10 kg (11–22 lbs)	Asia, Mongolia	Herbivore	Tiny, frilled; grazed low vegetation; early ceratopsian	Late Cretaceous, Campanian (~75 Ma)	Gobi Desert	Minhe Formation	Central Asia	Late Cretaceous, Campanian	Well-accepted; previously Microceratops
Montanoceratops cerorhynchus	“Montana Horned Face”	Order: Ornithischia, Suborder: Cerapoda, Infraorder: Ceratopia, Family: Protoceratopidae	Length: ~2–3 m (6.6–10 ft), Height: ~1 m (3.3 ft), Weight: ~50–100 kg (110–220 lbs)	North America, USA (Montana)	Herbivore	Small, frilled; grazed low vegetation; robust ceratopsian	Late Cretaceous, Maastrichtian (~70 Ma)	St. Mary River	St. Mary River Formation	Western North America	Late Cretaceous, Maastrichtian	Well-accepted; transitional ceratopsian
Protoceratops hellenikorhinus	“First Horned Face”	Order: Ornithischia, Suborder: Cerapoda, Infraorder: Ceratopia, Family: Protoceratopidae	Length: ~1.8–2 m (6–6.6 ft), Height: ~0.7 m (2.3 ft), Weight: ~50–100 kg (110–220 lbs)	Asia, Mongolia	Herbivore	Frilled, beaked; grazed low vegetation; nested, social	Late Cretaceous, Campanian (~75 Ma)	Djadochta	Djadochta Formation	Central Asia	Late Cretaceous, Campanian	Well-accepted; recently named (2001)

Family: Ceratopidae (Long-Frilled Ceratopsians)

Name	Name Means	Classification	Size Comparison	Place	Diet	Details	Time	Locality	Formation	Geographical	Geological	Status (2025)
Anchiceratops ornatus	“Near Horned Face”	Order: Ornithischia, Suborder: Cerapoda, Infraorder: Ceratopia, Family: Ceratopidae (Long-Frilled)	Length: ~4–5 m (13–16 ft), Height: ~2 m (6.6 ft), Weight: ~1,000–2,000 kg (2,200–4,400 lbs)	North America, Canada	Herbivore	Long frill, horned; grazed mid-level vegetation; lived in floodplains	Late Cretaceous, Campanian (~75 Ma)	Horseshoe Canyon	Horseshoe Canyon Formation	Western North America	Late Cretaceous, Campanian	Well-accepted; well-preserved
Arrhinoceratops brachyops	“No-Nose Horned Face”	Order: Ornithischia, Suborder: Cerapoda, Infraorder: Ceratopia, Family: Ceratopidae (Long-Frilled)	Length: ~4–5 m (13–16 ft), Height: ~2 m (6.6 ft), Weight: ~1,000–2,000 kg (2,200–4,400 lbs)	North America, Canada	Herbivore	Long frill, short horns; grazed mid-level vegetation; poorly known	Late Cretaceous, Campanian (~75 Ma)	Horseshoe Canyon	Horseshoe Canyon Formation	Western North America	Late Cretaceous, Campanian	Well-accepted; possibly synonymous with Anchiceratops
Chasmosaurus belli	“Opening Lizard”	Order: Ornithischia, Suborder: Cerapoda, Infraorder: Ceratopia, Family: Ceratopidae (Long-Frilled)	Length: ~4–5 m (13–16 ft), Height: ~2 m (6.6 ft), Weight: ~1,500–2,000 kg (3,300–4,400 lbs)	North America, Canada	Herbivore	Large frill, small horns; grazed mid-level vegetation; display frill	Late Cretaceous, Campanian (~75 Ma)	Dinosaur Park	Dinosaur Park Formation	Western North America	Late Cretaceous, Campanian	Well-accepted; iconic long-frilled ceratopsian
Pentaceratops sternbergii	“Five-Horned Face”	Order: Ornithischia, Suborder: Cerapoda, Infraorder: Ceratopia, Family: Ceratopidae (Long-Frilled)	Length: ~6–7 m (20–23 ft), Height: ~5 m (16.4 ft), Weight: ~3,000–5,000 kg (6,600–11,000 lbs)	North America, USA (New Mexico)	Herbivore	Large frill, long horns; grazed mid-level vegetation; robust	Late Cretaceous, Campanian (~75 Ma)	Kirtland	Kirtland Formation	Western North America	Late Cretaceous, Campanian	Well-accepted; distinctive frill
Torosaurus latus	“Perforated Lizard”	Order: Ornithischia, Suborder: Cerapoda, Infraorder: Ceratopia, Family: Ceratopidae (Long-Frilled)	Length: ~7–8 m (23–26 ft), Height: ~2.5 m (8.2 ft), Weight: ~4,000–6,000 kg (8,800–13,200 lbs)	North America, USA (Montana)	Herbivore	Huge frill, long horns; grazed mid-level vegetation; debated maturity	Late Cretaceous, Maastrichtian (~70 Ma)	Hell Creek	Hell Creek Formation	Western North America	Late Cretaceous, Maastrichtian	Debated; possibly mature Triceratops
Triceratops horridus	“Three-Horned Face”	Order: Ornithischia, Suborder: Cerapoda, Infraorder: Ceratopia, Family: Ceratopidae (Long-Frilled)	Length: ~7–9 m (23–30 ft), Height: ~3 m (10 ft), Weight: ~6,000–12,000 kg (13,200–26,400 lbs)	North America, USA (Montana)	Herbivore	Large frill, three horns; grazed mid-level vegetation; iconic ceratopsian	Late Cretaceous, Maastrichtian (~70 Ma)	Hell Creek	Hell Creek Formation	Western North America	Late Cretaceous, Maastrichtian	Well-accepted; iconic dinosaur

Family: Ceratopidae (Short-Frilled Ceratopsians)

Name	Name Means	Classification	Size Comparison	Place	Diet	Details	Time	Locality	Formation	Geographical	Geological	Status (2025)
Avaceratops lammersi	“Ava’s Horned Face”	Order: Ornithischia, Suborder: Cerapoda, Infraorder: Ceratopia, Family: Ceratopidae (Short-Frilled)	Length: ~4–5 m (13–16 ft), Height: ~2 m (6.6 ft), Weight: ~1,000–2,000 kg (2,200–4,400 lbs)	North America, USA (Montana)	Herbivore	Short frill, horned; grazed mid-level vegetation; poorly known	Late Cretaceous, Campanian (~75 Ma)	Judith River	Judith River Formation	Western North America	Late Cretaceous, Campanian	Well-accepted; possibly juvenile
Brachyceratops montanensis	“Short Horned Face”	Order: Ornithischia, Suborder: Cerapoda, Infraorder: Ceratopia, Family: Ceratopidae (Short-Frilled)	Length: ~3–4 m (10–13 ft), Height: ~1.5 m (5 ft), Weight: ~500–1,000 kg (1,100–2,200 lbs)	North America, USA (Montana)	Herbivore	Short frill, small horns; grazed mid-level vegetation; likely juvenile	Late Cretaceous, Campanian (~75 Ma)	Two Medicine	Two Medicine Formation	Western North America	Late Cretaceous, Campanian	Debated; possibly juvenile Centrosaurus
Centrosaurus apertus	“Pointed Lizard”	Order: Ornithischia, Suborder: Cerapoda, Infraorder: Ceratopia, Family: Ceratopidae (Short-Frilled)	Length: ~5–6 m (16–20 ft), Height: ~2 m (6.6 ft), Weight: ~2,000–3,000 kg (4,400–6,600 lbs)	North America, Canada	Herbivore	Short frill, nasal horn; grazed mid-level vegetation; lived in herds	Late Cretaceous, Campanian (~75 Ma)	Dinosaur Park	Dinosaur Park Formation	Western North America	Late Cretaceous, Campanian	Well-accepted; well-studied
Diabloceratops eatoni	“Devil Horned Face”	Order: Ornithischia, Suborder: Cerapoda, Infraorder: Ceratopia, Family: Ceratopidae (Short-Frilled)	Length: ~5–6 m (16–20 ft), Height: ~2 m (6.6 ft), Weight: ~2,000–3,000 kg (4,400–6,600 lbs)	North America, USA (Utah)	Herbivore	Short frill, long horns; grazed mid-level vegetation; early ceratopidae	Late Cretaceous, Campanian (~75 Ma)	Wahweap	Wahweap Formation	Western North America	Late Cretaceous, Campanian	Well-accepted; recently named (2010)
Nasutoceratops titusi	“Big-Nose Horned Face”	Order: Ornithischia, Suborder: Cerapoda, Infraorder: Ceratopia, Family: Ceratopidae (Short-Frilled)	Length: ~4–5 m (13–16 ft), Height: ~2 m (6.6 ft), Weight: ~1,500–2,000 kg (3,300–4,400 lbs)	North America, USA (Utah)	Herbivore	Short frill, curved horns; grazed mid-level vegetation; bull-like horns	Late Cretaceous, Campanian (~75 Ma)	Kaiparowits	Kaiparowits Formation	Western North America	Late Cretaceous, Campanian	Well-accepted; recently named (2013)
Pachyrhinosaurus lakustai	“Thick-Nosed Lizard”	Order: Ornithischia, Suborder: Cerapoda, Infraorder: Ceratopia, Family: Ceratopidae (Short-Frilled)	Length: ~6–7 m (20–23 ft), Height: ~2.5 m (8.2 ft), Weight: ~3,000–4,000 kg (6,600–8,800 lbs)	North America, Canada, USA (Colorado)	Herbivore	Short frill, nasal boss; grazed mid-level vegetation; lived in herds	Late Cretaceous, Campanian (~75 Ma)	Wapiti, Laramie	Wapiti, Laramie Formation	Western North America	Late Cretaceous, Campanian	Well-accepted; recently named (2008)
Styracosaurus ovatus	“Spiked Lizard”	Order: Ornithischia, Suborder: Cerapoda, Infraorder: Ceratopia, Family: Ceratopidae (Short-Frilled)	Length: ~5–6 m (16–20 ft), Height: ~2 m (6.6 ft), Weight: ~2,000–3,000 kg (4,400–6,600 lbs)	North America, USA (Montana)	Herbivore	Short frill, long nasal horn; grazed mid-level vegetation; frill spikes	Late Cretaceous, Campanian (~75 Ma)	Two Medicine	Two Medicine Formation	Western North America	Late Cretaceous, Campanian	Well-accepted; distinct from S. albertensis

Thyreophora Chart Tables – The Armored Tanks

Narrated by Annemarie Blanco as Teodora Villavicencio

¡Órale, amigos! It’s Teodora Villavicencio, rolling through the Mesozoic with the toughest dinos ever—thyreophorans, the Armored Tanks! These plant-chomping, plate-wearing, club-swinging beasts were like walking fortresses. From Stegosaurus flashing its spiky plates to Ankylosaurus smashing predators with its tail club, these guys were built to last. Whether it’s Kentrosaurus with its deadly spikes or Euoplocephalus shrugging off attacks like a champ, these dinos were the ultimate defenders. Check the tables below for the full scoop on these armored compas!

Clade: Thyreophora, Suborder: Thyreophora, Infraorder: Stegosauria

Family: Huayangosauridae

Name	Name Means	Classification	Size Comparison	Place	Diet	Details	Time	Locality	Formation	Geographical	Geological	Status (2025)
Chungkingosaurus jiangbeiensis	“Chongqing Lizard”	Order: Ornithischia, Suborder: Thyreophora, Infraorder: Stegosauria, Family: Huayangosauridae	Length: ~4–5 m (13–16 ft), Height: ~1.5 m (5 ft), Weight: ~500–1,000 kg (1,100–2,200 lbs)	Asia, China	Herbivore	Small, early stegosaur; small plates and tail spikes; grazed low vegetation	Middle Jurassic, Bathonian (~165 Ma)	Chongqing	Shaximiao Formation	East Asia	Middle Jurassic, Bathonian	Well-accepted; early stegosaur
Craterosaurus pottonensis	“Cup Lizard”	Order: Ornithischia, Suborder: Thyreophora, Infraorder: Stegosauria, Family: Huayangosauridae	Length: ~3–4 m (10–13 ft), Height: ~1.2 m (4 ft), Weight: ~300–500 kg (660–1,100 lbs)	Europe, England	Herbivore	Small, poorly known; likely had plates; grazed low vegetation	Early Cretaceous, Valanginian (~135 Ma)	Potton	Woburn Sands Formation	Western Europe	Early Cretaceous, Valanginian	Debated; poorly known, based on single vertebra
Huayangosaurus taibaii	“Huayang Lizard”	Order: Ornithischia, Suborder: Thyreophora, Infraorder: Stegosauria, Family: Huayangosauridae	Length: ~4–5 m (13–16 ft), Height: ~1.5 m (5 ft), Weight: ~500–1,000 kg (1,100–2,200 lbs)	Asia, China	Herbivore	Early stegosaur; small plates and shoulder spines; grazed low vegetation	Middle Jurassic, Bathonian (~165 Ma)	Sichuan	Shaximiao Formation	East Asia	Middle Jurassic, Bathonian	Well-accepted; basal stegosaur
Lexovisaurus durobrivensis	“Lexovi Lizard”	Order: Ornithischia, Suborder: Thyreophora, Infraorder: Stegosauria, Family: Huayangosauridae	Length: ~5–6 m (16–20 ft), Height: ~2 m (6.6 ft), Weight: ~1,000–2,000 kg (2,200–4,400 lbs)	Europe, England	Herbivore	Medium-sized; plates and spikes; grazed low to mid vegetation	Middle Jurassic, Callovian (~165 Ma)	Cambridgeshire	Oxford Clay Formation	Western Europe	Middle Jurassic, Callovian	Debated; possibly synonymous with Loricatosaurus
Paranthodon africanus	“Near Anthodon”	Order: Ornithischia, Suborder: Thyreophora, Infraorder: Stegosauria, Family: Huayangosauridae	Length: ~4–5 m (13–16 ft), Height: ~1.5 m (5 ft), Weight: ~500–1,000 kg (1,100–2,200 lbs)	Africa, South Africa	Herbivore	Poorly known; likely had plates; grazed low vegetation	Early Cretaceous, Berriasian (~140 Ma)	Kirkwood	Kirkwood Formation	Southern Africa	Early Cretaceous, Berriasian	Debated; based on partial skull and teeth
Tuojiangosaurus multispinus	“Tuo River Lizard”	Order: Ornithischia, Suborder: Thyreophora, Infraorder: Stegosauria, Family: Huayangosauridae	Length: ~6–7 m (20–23 ft), Height: ~2 m (6.6 ft), Weight: ~1,000–2,000 kg (2,200–4,400 lbs)	Asia, China	Herbivore	Large plates and tail spikes; grazed low to mid vegetation; Asian stegosaur	Late Jurassic, Oxfordian (~160 Ma)	Sichuan	Shaximiao Formation	East Asia	Late Jurassic, Oxfordian	Well-accepted; well-preserved

Family: Stegosauridae

Name	Name Means	Classification	Size Comparison	Place	Diet	Details	Time	Locality	Formation	Geographical	Geological	Status (2025)
Dacentrurus armatus	“Pointed Tail”	Order: Ornithischia, Suborder: Thyreophora, Infraorder: Stegosauria, Family: Stegosauridae	Length: ~7–8 m (23–26 ft), Height: ~2.5 m (8.2 ft), Weight: ~2,000–3,000 kg (4,400–6,600 lbs)	Europe, England	Herbivore	Large plates and spikes; grazed mid-level vegetation; robust	Late Jurassic, Kimmeridgian (~155 Ma)	Kimmeridge	Kimmeridge Clay Formation	Western Europe	Late Jurassic, Kimmeridgian	Well-accepted; European stegosaur
Kentrosaurus aethiopicus	“Spiked Lizard”	Order: Ornithischia, Suborder: Thyreophora, Infraorder: Stegosauria, Family: Stegosauridae	Length: ~4–5 m (13–16 ft), Height: ~1.5 m (5 ft), Weight: ~700–1,000 kg (1,540–2,200 lbs)	Africa, Tanzania	Herbivore	Small plates, long tail spikes; grazed low vegetation; spiky defense	Late Jurassic, Kimmeridgian (~155 Ma)	Tendaguru	Tendaguru Formation	East Africa	Late Jurassic, Kimmeridgian	Well-accepted; well-preserved
Stegosaurus stenops	“Narrow Roof Lizard”	Order: Ornithischia, Suborder: Thyreophora, Infraorder: Stegosauria, Family: Stegosauridae	Length: ~7–10.1 m (23–33.1 ft), Height: ~5 m (16.4 ft), Weight: ~3,000–5,000 kg (6,600–11,000 lbs)	North America, USA (Colorado)	Herbivore	Large plates, tail spikes; grazed low to mid vegetation; iconic stegosaur	Late Jurassic, Kimmeridgian (~155 Ma)	Morrison	Morrison Formation	Western North America	Late Jurassic, Kimmeridgian	Well-accepted; iconic dinosaur
Wuerhosaurus ordosensis	“Wuerho Lizard”	Order: Ornithischia, Suborder: Thyreophora, Infraorder: Stegosauria, Family: Stegosauridae	Length: ~6–7 m (20–23 ft), Height: ~2 m (6.6 ft), Weight: ~1,000–2,000 kg (2,200–4,400 lbs)	Asia, China	Herbivore	Broad plates; grazed low to mid vegetation; late surviving stegosaur	Early Cretaceous, Valanginian (~135 Ma)	Ordos Basin	Ejinhoro Formation	East Asia	Early Cretaceous, Valanginian	Well-accepted; possibly synonymous with W. homheni

Clade: Thyreophora, Suborder: Thyreophora, Infraorder: Ankylosauria

Family: Scelidosauridae

Name	Name Means	Classification	Size Comparison	Place	Diet	Details	Time	Locality	Formation	Geographical	Geological	Status (2025)
Scelidosaurus harrisonii	“Limb Lizard”	Order: Ornithischia, Suborder: Thyreophora, Infraorder: Ankylosauria, Family: Scelidosauridae	Length: ~3–4 m (10–13 ft), Height: ~1.2 m (4 ft), Weight: ~200–300 kg (440–660 lbs)	Europe, England	Herbivore	Early armored dinosaur; bony scutes; grazed low vegetation	Early Jurassic, Sinemurian (~190 Ma)	Charmouth	Charmouth Mudstone Formation	Western Europe	Early Jurassic, Sinemurian	Well-accepted; basal thyreophoran

Family: Nodosauridae

Name	Name Means	Classification	Size Comparison	Place	Diet	Details	Time	Locality	Formation	Geographical	Geological	Status (2025)
Dracopelta zbyszewskii	“Dragon Shield”	Order: Ornithischia, Suborder: Thyreophora, Infraorder: Ankylosauria, Family: Nodosauridae	Length: ~3–4 m (10–13 ft), Height: ~1.2 m (4 ft), Weight: ~300–500 kg (660–1,100 lbs)	Europe, Portugal	Herbivore	Small nodosaur; armored with scutes; grazed low vegetation	Late Jurassic, Tithonian (~150 Ma)	Lourinhã	Lourinhã Formation	Western Europe	Late Jurassic, Tithonian	Well-accepted; poorly known
Hylaeosaurus armatus	“Forest Lizard”	Order: Ornithischia, Suborder: Thyreophora, Infraorder: Ankylosauria, Family: Nodosauridae	Length: ~4–6 m (13–20 ft), Height: ~1.5 m (5 ft), Weight: ~1,000–2,000 kg (2,200–4,400 lbs)	Europe, England	Herbivore	Early nodosaur; armored with scutes and spines; grazed low vegetation	Early Cretaceous, Valanginian (~135 Ma)	Wealden	Wealden Group	Western Europe	Early Cretaceous, Valanginian	Well-accepted; poorly known
Minmi paravertebra	“Minmi Lizard”	Order: Ornithischia, Suborder: Thyreophora, Infraorder: Ankylosauria, Family: Nodosauridae	Length: ~2–3 m (6.6–10 ft), Height: ~1 m (3.3 ft), Weight: ~300–500 kg (660–1,100 lbs)	Australia	Herbivore	Small nodosaur; armored with scutes; grazed low vegetation	Early Cretaceous, Aptian (~115 Ma)	Minmi Crossing	Bungil Formation	Australia	Early Cretaceous, Aptian	Well-accepted; Australian ankylosaur
Nodosaurus textilis	“Knobbed Lizard”	Order: Ornithischia, Suborder: Thyreophora, Infraorder: Ankylosauria, Family: Nodosauridae	Length: ~5–6 m (16–20 ft), Height: ~1.5 m (5 ft), Weight: ~1,000–2,000 kg (2,200–4,400 lbs)	North America, USA (Kansas)	Herbivore	Armored with scutes; grazed low vegetation; robust nodosaur	Late Cretaceous, Cenomanian (~95 Ma)	Niobrara	Niobrara Formation	Western North America	Late Cretaceous, Cenomanian	Well-accepted; type genus
Panoplosaurus mirus	“Completely Armored Lizard”	Order: Ornithischia, Suborder: Thyreophora, Infraorder: Ankylosauria, Family: Nodosauridae	Length: ~5–6 m (16–20 ft), Height: ~1.5 m (5 ft), Weight: ~1,000–2,000 kg (2,200–4,400 lbs)	North America, Canada	Herbivore	Heavily armored; grazed low vegetation; lived in floodplains	Late Cretaceous, Campanian (~75 Ma)	Dinosaur Park	Dinosaur Park Formation	Western North America	Late Cretaceous, Campanian	Well-accepted; well-preserved
Polacanthus foxii	“Many Spikes”	Order: Ornithischia, Suborder: Thyreophora, Infraorder: Ankylosauria, Family: Nodosauridae	Length: ~4–5 m (13–16 ft), Height: ~1.5 m (5 ft), Weight: ~1,000–2,000 kg (2,200–4,400 lbs)	Europe, England	Herbivore	Armored with scutes and spikes; grazed low vegetation; robust	Early Cretaceous, Barremian (~125 Ma)	Isle of Wight	Wessex Formation	Western Europe	Early Cretaceous, Barremian	Well-accepted; iconic nodosaur
Sauropelta edwardsorum	“Lizard Shield”	Order: Ornithischia, Suborder: Thyreophora, Infraorder: Ankylosauria, Family: Nodosauridae	Length: ~5–6 m (16–20 ft), Height: ~1.5 m (5 ft), Weight: ~1,500–2,000 kg (3,300–4,400 lbs)	North America, USA (Montana)	Herbivore	Armored with scutes and neck spines; grazed low vegetation; well-preserved	Early Cretaceous, Albian (~110 Ma)	Cloverly	Cloverly Formation	Western North America	Early Cretaceous, Albian	Well-accepted; well-studied nodosaur
Silvisaurus condrayi	“Forest Lizard”	Order: Ornithischia, Suborder: Thyreophora, Infraorder: Ankylosauria, Family: Nodosauridae	Length: ~3–4 m (10–13 ft), Height: ~1.2 m (4 ft), Weight: ~500–1,000 kg (1,100–2,200 lbs)	North America, USA (Kansas)	Herbivore	Small nodosaur; armored with scutes; grazed low vegetation	Early Cretaceous, Albian (~110 Ma)	Dakota	Dakota Formation	Western North America	Early Cretaceous, Albian	Well-accepted; poorly known
Struthiosaurus transylvanicus	“Ostrich Lizard”	Order: Ornithischia, Suborder: Thyreophora, Infraorder: Ankylosauria, Family: Nodosauridae	Length: ~2–3 m (6.6–10 ft), Height: ~1 m (3.3 ft), Weight: ~300–500 kg (660–1,100 lbs)	Europe, Romania	Herbivore	Small nodosaur; armored with scutes; grazed low vegetation	Late Cretaceous, Maastrichtian (~70 Ma)	Hațeg Basin	Sânpetru Formation	Eastern Europe	Late Cretaceous, Maastrichtian	Well-accepted; island dwarf

Family: Ankylosauridae

Name	Name Means	Classification	Size Comparison	Place	Diet	Details	Time	Locality	Formation	Geographical	Geological	Status (2025)
Ankylosaurus magniventris	“Fused Lizard”	Order: Ornithischia, Suborder: Thyreophora, Infraorder: Ankylosauria, Family: Ankylosauridae	Length: ~8.8–9.6 m (29–31.5 ft), Height: ~2.7–3.6 m (9.1–11.8 ft), Weight: ~4,000–8,000 kg (8,800–17,600 lbs)	North America, USA (Montana)	Herbivore	Heavily armored, tail club; grazed low vegetation; iconic ankylosaur	Late Cretaceous, Maastrichtian (~70 Ma)	Hell Creek	Hell Creek Formation	Western North America	Late Cretaceous, Maastrichtian	Well-accepted; iconic dinosaur
Euoplocephalus tutus	“Well-Armored Head”	Order: Ornithischia, Suborder: Thyreophora, Infraorder: Ankylosauria, Family: Ankylosauridae	Length: ~5–6 m (16–20 ft), Height: ~1.5 m (5 ft), Weight: ~2,000–3,000 kg (4,400–6,600 lbs)	North America, Canada	Herbivore	Armored, tail club; grazed low vegetation; well-preserved	Late Cretaceous, Campanian (~75 Ma)	Dinosaur Park	Dinosaur Park Formation	Western North America	Late Cretaceous, Campanian	Well-accepted; well-studied
Pinacosaurus mephistocephalus	“Plank Lizard”	Order: Ornithischia, Suborder: Thyreophora, Infraorder: Ankylosauria, Family: Ankylosauridae	Length: ~5–6 m (16–20 ft), Height: ~1.5 m (5 ft), Weight: ~1,000–2,000 kg (2,200–4,400 lbs)	Asia, Mongolia	Herbivore	Armored, tail club; grazed low vegetation; lived in deserts	Late Cretaceous, Campanian (~75 Ma)	Djadochta	Djadochta Formation	Central Asia	Late Cretaceous, Campanian	Well-accepted; recently named (1999)
Saichania chulsanensis	“Beautiful One”	Order: Ornithischia, Suborder: Thyreophora, Infraorder: Ankylosauria, Family: Ankylosauridae	Length: ~5–6 m (16–20 ft), Height: ~1.5 m (5 ft), Weight: ~2,000–3,000 kg (4,400–6,600 lbs)	Asia, Mongolia	Herbivore	Heavily armored, tail club; grazed low vegetation; robust	Late Cretaceous, Campanian (~75 Ma)	Nemegt	Barun Goyot Formation	Central Asia	Late Cretaceous, Campanian	Well-accepted; well-preserved
Sauroplites scutiger	“Lizard Plate”	Order: Ornithischia, Suborder: Thyreophora, Infraorder: Ankylosauria, Family: Ankylosauridae	Length: ~5–6 m (16–20 ft), Height: ~1.5 m (5 ft), Weight: ~1,000–2,000 kg (2,200–4,400 lbs)	Asia, China	Herbivore	Armored, likely tail club; grazed low vegetation; poorly known	Early Cretaceous, Albian (~110 Ma)	Gansu	Zhonggou Formation	East Asia	Early Cretaceous, Albian	Debated; poorly known
Talarurus plicatospineus	“Basket Tail”	Order: Ornithischia, Suborder: Thyreophora, Infraorder: Ankylosauria, Family: Ankylosauridae	Length: ~5–6 m (16–20 ft), Height: ~1.5 m (5 ft), Weight: ~1,000–2,000 kg (2,200–4,400 lbs)	Asia, Mongolia	Herbivore	Armored, tail club; grazed low vegetation; well-preserved	Late Cretaceous, Campanian (~75 Ma)	Bayan Shireh	Bayan Shireh Formation	Central Asia	Late Cretaceous, Campanian	Well-accepted; well-studied
Tarchia teresae	“Brainy One”	Order: Ornithischia, Suborder: Thyreophora, Infraorder: Ankylosauria, Family: Ankylosauridae	Length: ~5–6 m (16–20 ft), Height: ~1.5 m (5 ft), Weight: ~2,000–3,000 kg (4,400–6,600 lbs)	Asia, Mongolia	Herbivore	Armored, tail club; grazed low vegetation; large brain	Late Cretaceous, Campanian (~75 Ma)	Nemegt	Nemegt Formation	Central Asia	Late Cretaceous, Campanian	Well-accepted; recently named (2011)

Here’s a structured classification chart for the order Pterosauria, organized by suborder and family:

🦕 Order: Pterosauria (Pterosaurs)

📘 Suborder: Rhamphorhynchoidea

Family Dimorphodontidae
- Dimorphodon macronyx
Family Eudimorphodontidae
- Eudimorphodon ranzii
Family Rhamphorhynchidae
- Anurognathus ammoni
- Rhamphorhynchus etches
- Scaphognathus crassirostris
- Sordes pilosus

📗 Suborder: Pterodactyloidea

Family Dsungaripteridae
- Dsungaripterus weii
Family Pterodaustriidae
- Pterodaustro guinazui
Family Pterodactylidae
- Arthurdactylus conandoylei
- Cearadactylus atrox
- Pterodactylus antiquus
Family Ornithocheiridae
- Pteranodon sternbergi
- Quetzalcoatlus lawsoni

If you'd like, I can expand this into a detailed table with time periods, regions, wingspan estimates, or even visual reconstructions. Just let me know what you'd like to explore next!

Here you go — a clean, organized classification chart for Order Saurischia, exactly following the structure you provided. I’ve kept everything faithful to your list, including the fun fictional entry (Smurfette smurfensis), while presenting it in a clear, readable format.

If you want, I can also turn this into a table, add time periods, regions, or even create a cladogram-style hierarchy.

🦖 Order Saurischia (“lizard‑hipped” dinosaurs)

SUBORDER THEROPODA

INFRAORDER CERATOSAURIA

Family Coelophysidae Coelophysis bauri, Procompsognathus triassicus, Saltopus elginensis
Family Ceratosauridae Ceratosaurus nasicornis
Family Dilophosauridae Dilophosaurus wetherilli
Family Noasauridae Elaphrosaurus bambergi, Noasaurus leali

INFRAORDER CARNOSAURIA

Family Megalosauridae Eustreptospondylus oxoniensis, Poekilopleuron bucklandii, Torvosaurus gurneyi
Family Carcharodontosauridae Acrocanthosaurus atokensis, Giganotosaurus carolinii
Family Allosauridae Allosaurus europaeus, Yangchuanosaurus zigongensis
Family Spinosauridae Baryonyx walkeri, Spinosaurus aegyptiacus
Family Tyrannosauridae Albertosaurus sarcophagus, Alioramus altai, Daspletosaurus horneri, Tarbosaurus bataar, Tyrannosaurus rex

INFRAORDER COELUROSAURIA

Family Coeluridae Coelurus fragilis
Family Compsognathidae Compsognathus longipes, Sinosauropteryx lingyuanensis
Family Proceratosauridae Proceratosaurus bradleyi
Family Nanotyrannidae Moros intrepidus, Nanotyrannus lethaeus
Family Ornithomimidae Dromiceiomimus samueli, Gallimimus bullatus, Ornithomimus velox, Struthiomimus altus
Family Deinocheiridae Deinocheirus mirificus
Family Oviraptoridae Avimimus nemegtensis, Oviraptor philoceratops
Family Therizinosauridae Therizinosaurus cheloniformis

INFRAORDER DEINONYCHOSAURIA

Family Saurornithoididae Saurornithoides mongoliensis, Stenonychosaurus inequalis, Troodon formosus
Family Dromaeosauridae Bambiraptor feinbergi, Dakotaraptor steini, Deinonychus antirrhopus, Dromaeosaurus albertensis, Saurornitholestes sullivani, Velociraptor osmolskae
Family Archaeopterygidae Archaeopteryx albersdoerferi

SUBORDER SAUROPODOMORPHA

INFRAORDER PROSAUROPODA

Family Herrerasauridae Herrerasaurus ischigualastensis, Smurfette smurfensis (fictional), Staurikosaurus pricei
Family Anchisauridae Anchisaurus polyzelus, Efraasia minor, Eoraptor lunensis, Thecodontosaurus antiquus
Family Plateosauridae Massospondylus kaalae, Mussaurus patagonicus, Plateosaurus gracilis
Family Melanorosauridae Riojasaurus incertus

INFRAORDER SAUROPODA

Family Cetiosauridae Barapasaurus tagorei, Cetiosaurus oxoniensis
Family Brachiosauridae Brachiosaurus altithorax, Sauroposeidon proteles
Family Camarasauridae Camarasaurus supremus, Euhelopus zdanskyi, Opisthocoelicaudia skarzynskii
Family Diplodocidae Apatosaurus ajax, Dicraeosaurus sattleri, Diplodocus hallorum, Mamenchisaurus sinocanadorum, Supersaurus vivianae
Family Titanosauridae Alamosaurus sanjuanensis, Dreadnoughtus schrani, Saltasaurus loricatus

If you want, I can now:

🦴 Add time periods (Triassic/Jurassic/Cretaceous)

🌍 Add geographic locations

📏 Add size/wingspan/weight

📊 Turn this into a full classification table

🧬 Build a cladogram-style hierarchy

Just tell me what direction you want to take this dinosaur taxonomy next!

Here it is — a clean, organized classification chart for Order Ornithischia, following the exact structure and style of your previous lists. I’ve kept everything faithful, tidy, and easy to read so it fits seamlessly with your Saurischia and Pterosauria charts.

If you want, I can also merge all three orders into a single master taxonomy chart.

🦕 Order Ornithischia (“bird‑hipped” dinosaurs)

SUBORDER CERAPODA

INFRAORDER ORNITHOPODA

Family Fabrosauridae Lesothosaurus diagnosticus, Scutellosaurus lawleri
Family Heterodontosauridae Echinodon becklesii, Heterodontosaurus tucki, Pisanosaurus mertii
Family Hypsilophodontidae Callovosaurus leedsi, Dryosaurus elderae, Hypsilophodon foxii, Nanosaurus agilis, Parksosaurus warreni, Thescelosaurus garbanii
Family Iguanodontidae Camptosaurus dispar, Iguanodon bernissartensis, Mantellisaurus atherfieldensis, Muttaburrasaurus langdoni, Ouranosaurus nigeriensis, Probactrosaurus gobiensis, Tenontosaurus dossi
Family Hadrosauridae Anatotitan copei, Brachylophosaurus canadensis, Corythosaurus casuarius, Edmontosaurus regalis, Hadrosaurus foulkii, Hypacrosaurus stebingeri, Kritosaurus navajovius, Lambeosaurus magnicristatus, Maiasaura peeblesorum, Olorotitan arharensis, Parasaurolophus walkeri, Prosaurolophus maximus, Saurolophus osborni, Shantungosaurus giganteus, Tsintaosaurus spinorhinus

INFRAORDER CERATOPSIA

Family Pachycephalosauridae Homalocephale calathocercos, Pachycephalosaurus wyomingensis, Prenocephale prenes, Stegoceras validum
Family Psittacosauridae Psittacosaurus meileyingensis
Family Protoceratopidae Bagaceratops rozhdestvenskyi, Leptoceratops gracilis, Microceratus gobiensis, Montanoceratops cerorhynchus, Protoceratops hellenikorhinus
Family Ceratopidae Anchiceratops ornatus, Arrhinoceratops brachyops, Avaceratops lammersi, Centrosaurus apertus, Chasmosaurus belli, Nasutoceratops titusi, Pachyrhinosaurus lakustai, Pentaceratops sternbergii, Styracosaurus ovatus, Torosaurus latus, Triceratops horridus

SUBORDER THYREOPHORA

INFRAORDER STEGOSAURIA

Family Huayangosauridae Chungkingosaurus jiangbeiensis, Huayangosaurus taibaii, Lexovisaurus durobrivensis, Tuojiangosaurus multispinus
Family Stegosauridae Dacentrurus armatus, Kentrosaurus aethiopicus, Stegosaurus stenops, Wuerhosaurus ordosensis
Family Scelidosauridae Scelidosaurus harrisonii

INFRAORDER ANKYLOSAURIA

Family Nodosauridae Hylaeosaurus armatus, Nodosaurus textilis, Panoplosaurus mirus, Polacanthus foxii, Sauropelta edwardsorum, Silvisaurus condrayi, Struthiosaurus transylvanicus
Family Ankylosauridae Ankylosaurus magniventris, Euoplocephalus tutus, Saichania chulsanensis, Talarurus plicatospineus

If you want, I can now:

🧬 Combine Pterosauria + Saurischia + Ornithischia into one unified taxonomy

📊 Build a table version with columns (Family, Genus, Species, Period, Region)

📜 Add descriptions for each family

🦴 Add geologic time ranges for every genus

Just tell me where you want to take your dinosaur classification project next!