Gallery of Dinosaurs

Gallery

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Pterosauria Classification Table

Soar into the skies, dino adventurers! Thea Stilton, voiced by Sarah Edmondson, and Teodora Villavicencio, voiced by Annemarie Blanco, are gliding through the world of Pterosauria—the Lords of the Ancient Skies! Join us on this high-flying quest to uncover the secrets of these winged wonders!

Name	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 large eagle	Dorset, England	Carnivore/Piscivore	Thea’s log: Swooped over Jurassic coasts with a big head and two types of teeth—sharp for fish, peg-like for insects! Teodora’s insight: Fossils show a lightweight frame for flapping flight, perfect for hunting along ancient shores.
Eudimorphodon ranzii	“True two-form tooth”	Order: Pterosauria, Suborder: Rhamphorhynchoidea, Family: Eudimorphodontidae	~1 m wingspan, like a large hawk	Lombardy, Italy	Piscivore	Thea’s log: Zipped through Triassic skies, snapping up fish with sharp, multicusped teeth! Teodora’s insight: One of the earliest pterosaurs, with a long tail and vane for stable flight, found in marine deposits.
Anurognathus ammoni	“No jaw, Ammon’s”	Order: Pterosauria, Suborder: Rhamphorhynchoidea, Family: Rhamphorhynchidae	~0.5 m wingspan, like a small bat	Bavaria, Germany	Insectivore	Thea’s log: A tiny night flier, gobbling insects like a prehistoric bat! Teodora’s insight: Broad beak and short tail made it agile for catching bugs in the Jurassic twilight, preserved in fine limestone.
Rhamphorhynchus etchesi	“Beak snout, Etches’”	Order: Pterosauria, Suborder: Rhamphorhynchoidea, Family: Rhamphorhynchidae	~1.8 m wingspan, like a large albatross	Dorset, England	Piscivore	Thea’s log: Dove into Jurassic seas, spearing fish with its pointy beak! Teodora’s insight: Forward-angled teeth and a tail vane helped it skim coastal waters, recently named for its discoverer.
Scaphognathus crassirostris	“Boat jaw, thick snout”	Order: Pterosauria, Suborder: Rhamphorhynchoidea, Family: Rhamphorhynchidae	~1 m wingspan, like a large hawk	Bavaria, Germany	Carnivore/Piscivore	Thea’s log: Snatched small prey with its sturdy, blunt snout in Jurassic skies! Teodora’s insight: Shorter tail than Rhamphorhynchus gave it agility, found alongside marine fossils in Solnhofen.
Sordes pilosus	“Hairy devil”	Order: Pterosauria, Suborder: Rhamphorhynchoidea, Family: Rhamphorhynchidae	~1 m wingspan, like a large eagle	Karatau, Kazakhstan	Piscivore	Thea’s log: Flew over ancient lakes, covered in fuzzy pycnofibers! Teodora’s insight: Fossils show hair-like structures for warmth, a key find for understanding pterosaur insulation.
Dsungaripterus weii	“Junggar wing, Wei’s”	Order: Pterosauria, Suborder: Pterodactyloidea, Family: Dsungaripteridae	~3 m wingspan, like a small plane	Xinjiang, China	Piscivore/Molluscivore	Thea’s log: Crunched shellfish with its tough, curved beak in Cretaceous skies! Teodora’s insight: Blunt teeth and narrow wings suited it for soaring over inland seas, crushing hard-shelled prey.
Arthurdactylus conandoylei	“Arthur’s finger, Conan Doyle’s”	Order: Pterosauria, Suborder: Pterodactyloidea, Family: Pterodaustriidae	~4.5 m wingspan, like a hang glider	Ceará, Brazil	Piscivore	Thea’s log: Glided over Brazilian coasts, spearing fish with a slender beak! Teodora’s insight: Long wings and robust build suggest strong flight, named for Sherlock Holmes’ creator.
Pterodaustro guinazui	“Southern wing, Guinazu’s”	Order: Pterosauria, Suborder: Pterodactyloidea, Family: Pterodaustriidae	~2.5 m wingspan, like a large pelican	Mendoza, Argentina	Filter-feeder	Thea’s log: Skimmed lakes with comb-like teeth, scooping tiny critters! Teodora’s insight: Hundreds of bristle-like teeth filtered plankton, like a flamingo, with fossils showing juvenile growth stages.
Cearadactylus atrox	“Ceará finger, fierce”	Order: Pterosauria, Suborder: Pterodactyloidea, Family: Pterodactylidae	~5.5 m wingspan, like a small plane	Ceará, Brazil	Piscivore	Thea’s log: A fierce flier with toothy jaws, snatching fish from Cretaceous seas! Teodora’s insight: Robust skull, possibly in Ornithocheiridae, shows strong bite for larger prey, found in Santana’s rich fossil beds.
Pteranodon sternbergi	“Toothless wing, Sternberg’s”	Order: Pterosauria, Suborder: Pterodactyloidea, Family: Ornithocheiridae	~7 m wingspan, like a small aircraft	Kansas, USA	Piscivore	Thea’s log: Dove for fish with a long, toothless beak and a flashy crest! Teodora’s insight: Large crest likely for display or steering, soared over ancient oceans, known from numerous fossils.
Quetzalcoatlus lawsoni	“Feathered serpent god, Lawson’s”	Order: Pterosauria, Suborder: Pterodactyloidea, Family: Ornithocheiridae	~10-17 m wingspan, like a small plane	Texas, USA	Carnivore/Scavenger	Thea’s log: A giant of the skies, probing for prey with a massive beak! Teodora’s insight: Belongs to Azhdarchidae, not Ornithocheiridae; stalked or scavenged on land, one of the largest flying animals ever.

NAME MEANS: CLASSIFICATION: SIZE COMPARISON: PLACE: DIET: DETAILS: CHART TABLE: 🦅 Pterosauria – Lords of the Ancient Skies Order: Pterosauria Suborder: Rhamphorhynchoidea Family: Dimorphodontidae Dimorphodon macronyx Family: Eudimorphodontidae Eudimorphodon ranzii Family: Rhamphorhynchidae Anurognathus ammoni Rhamphorhynchus etchesi Scaphognathus crassirostris Sordes pilosus Suborder: Pterodactyloidea Family: Dsungaripteridae Dsungaripterus weii Family: Pterodaustriidae Arthurdactylus conandoylei Pterodaustro guinazui Family: Pterodactylidae: Cearadactylus atrox Family: Ornithocheiridae Pteranodon sternbergi Quetzalcoatlus lawsoni

Theropoda Classification Table

Sharpen your claws, dino detectives! Thea Stilton, voiced by Sarah Edmondson, and Teodora Villavicencio, voiced by Annemarie Blanco, are stalking the world of Theropoda—the Predatory Elite! Join us on this thrilling hunt to uncover the secrets of these ferocious carnivores!

Name	Name Means	Classification	Size Comparison	Place	Diet	Details
Theropoda – The Predatory Elite
Coelophysis bauri	“Hollow form, Baur’s”	Order: Saurischia, Suborder: Theropoda, Infraorder: Coelurosauria, Family: Podokesauridae	~3 m long, like a large dog	New Mexico, USA	Carnivore	Thea’s log: Sprinted through Triassic deserts, snapping up small prey with sharp teeth! Teodora’s insight: Mass bone beds show pack behavior, with slender, hollow bones for speed.
Procompsognathus triassicus	“Before elegant jaw, Triassic”	Order: Saurischia, Suborder: Theropoda, Infraorder: Coelurosauria, Family: Podokesauridae	~1 m long, like a small cat	Württemberg, Germany	Carnivore	Thea’s log: A tiny terror, chasing lizards in the Triassic underbrush! Teodora’s insight: Agile build with long legs, some debate over whether it’s a true theropod or close relative.
Saltopus elginensis	“Hopping foot, Elgin’s”	Order: Saurischia, Suborder: Theropoda, Infraorder: Coelurosauria, Family: Podokesauridae	~0.6 m long, like a small cat	Moray, Scotland	Carnivore	Thea’s log: Darted around Triassic Scotland, snagging small prey! Teodora’s insight: Tiny and lightweight, possibly a non-dinosaurian archosaur, known from fragmentary fossils.
Coelurus fragilis	“Hollow tail, fragile”	Order: Saurischia, Suborder: Theropoda, Infraorder: Coelurosauria, Family: Coeluridae	~2 m long, like a large dog	Wyoming, Utah, USA	Carnivore	Thea’s log: A speedy Jurassic hunter with long arms for grabbing prey! Teodora’s insight: Slender and agile, known from partial skeletons, an early coelurosaur with bird-like traits.
Moros intrepidus	“Doom, fearless”	Order: Saurischia, Suborder: Theropoda, Infraorder: Coelurosauria, Family: Coeluridae	~1.2 m long, like a small dog	Utah, USA	Carnivore	Thea’s log: A feathered sprinter, hunting in Cretaceous forests! Teodora’s insight: Early tyrannosauroid, recently discovered, with feathers suggesting bird ancestry.
Compsognathus longipes	“Elegant jaw, long foot”	Order: Saurischia, Suborder: Theropoda, Infraorder: Coelurosauria, Family: Compsognathidae	~1 m long, like a small cat	Bavaria, Germany	Carnivore	Thea’s log: A chicken-sized predator, gobbling lizards in Jurassic lagoons! Teodora’s insight: Well-preserved fossils show a delicate build, key to understanding small theropods.
Sinosauropteryx lingyuanensis	“Chinese lizard wing, Lingyuan’s”	Order: Saurischia, Suborder: Theropoda, Infraorder: Coelurosauria, Family: Compsognathidae	~1 m long, like a small cat	Liaoning, China	Carnivore	Thea’s log: Strutted with colorful proto-feathers, hunting in Cretaceous China! Teodora’s insight: First dinosaur with fossilized feathers, showing dinosaur-bird link, found in Yixian beds.
Dromiceiomimus samueli	“Emu mimic, Samuel’s”	Order: Saurischia, Suborder: Theropoda, Infraorder: Coelurosauria, Family: Ornithomimidae	~3.5 m long, like a small car	Alberta, Canada	Omnivore	Thea’s log: Raced like an ostrich, pecking plants and small critters! Teodora’s insight: Toothless beak and long legs suggest speed, possibly synonymous with Ornithomimus.
Gallimimus bullatus	“Chicken mimic, bulbous”	Order: Saurischia, Suborder: Theropoda, Infraorder: Coelurosauria, Family: Ornithomimidae	~6 m long, like a small bus	Gobi Desert, Mongolia	Omnivore	Thea’s log: Sprinted across Cretaceous plains, foraging with a long neck! Teodora’s insight: Large eyes and beak suited for mixed diet, known from multiple skeletons in Nemegt.
Ornithomimus velox	“Bird mimic, swift”	Order: Saurischia, Suborder: Theropoda, Infraorder: Coelurosauria, Family: Ornithomimidae	~4 m long, like a small car	Colorado, USA	Omnivore	Thea’s log: Zoomed through Cretaceous forests, grabbing plants and bugs! Teodora’s insight: Toothless beak and long arms for foraging, some debate over synonymy with Dromiceiomimus.
Struthiomimus altus	“Ostrich mimic, tall”	Order: Saurischia, Suborder: Theropoda, Infraorder: Coelurosauria, Family: Ornithomimidae	~4 m long, like a small car	Alberta, Canada; Wyoming, USA	Omnivore	Thea’s log: Dashed like an ostrich, munching on anything it could find! Teodora’s insight: Long legs and beak for omnivorous diet, well-studied from North American fossil beds.
Deinocheirus mirificus	“Terrible hand, wonderful”	Order: Saurischia, Suborder: Theropoda, Infraorder: Coelurosauria, Family: Deinocheiridae	~11 m long, like a large van	Gobi Desert, Mongolia	Omnivore	Thea’s log: Wielded massive arms, foraging in Cretaceous swamps! Teodora’s insight: Huge claws likely for digging or pulling plants, nearly complete skeletons reveal unique build.
Oviraptor philoceratops	“Egg thief, ceratopsian lover”	Order: Saurischia, Suborder: Theropoda, Infraorder: Coelurosauria, Maniraptoria, Family: Oviraptoridae	~2 m long, like a large dog	Gobi Desert, Mongolia	Omnivore	Thea’s log: Snacked on eggs and plants with a toothless beak! Teodora’s insight: Misnamed as egg thief; fossils show brooding behavior, crest likely for display.
Therizinosaurus cheloniformis	“Scythe lizard, turtle-shaped”	Order: Saurischia, Suborder: Theropoda, Infraorder: Coelurosauria, Maniraptoria, Family: Therizinosauridae	~10 m long, like a large van	Gobi Desert, Mongolia	Herbivore	Thea’s log: Slashed branches with meter-long claws, a veggie-eating giant! Teodora’s insight: Feathered herbivore with long arms, adapted for pulling foliage, known from partial skeletons.
Stenonychosaurus inequalis	“Narrow claw lizard, unequal”	Order: Saurischia, Suborder: Theropoda, Infraorder: Coelurosauria, Maniraptoria, Family: Saurornithoididae	~2 m long, like a large dog	Alberta, Canada	Carnivore	Thea’s log: Hunted at night with big eyes and a sickle claw! Teodora’s insight: Large brain and feathers, possibly synonymous with Troodon, known from partial remains.
Troodon formosus	“Wounding tooth, beautiful”	Order: Saurischia, Suborder: Theropoda, Infraorder: Coelurosauria, Maniraptoria, Family: Saurornithoididae	~2 m long, like a large dog	Montana, USA	Carnivore	Thea’s log: A clever hunter, stalking prey with sharp teeth! Teodora’s insight: Large eyes for nocturnal hunting, may be same as Stenonychosaurus, significant for brain size.
Bambiraptor feinbergi	“Bambi thief, Feinberg’s”	Order: Saurischia, Suborder: Theropoda, Infraorder: Coelurosauria, Maniraptoria, Family: Dromaeosauridae	~1 m long, like a small cat	Montana, USA	Carnivore	Thea’s log: A tiny, feathered raptor, pouncing like a prehistoric cat! Teodora’s insight: Juvenile specimen with feathers, shows close bird ancestry, named for Disney’s Bambi.
Deinonychus antirrhopus	“Terrible claw, counterbalanced”	Order: Saurischia, Suborder: Theropoda, Infraorder: Coelurosauria, Maniraptoria, Family: Dromaeosauridae	~3.4 m long, like a small car	Montana, USA	Carnivore	Thea’s log: Slashed prey with its sickle-shaped claw, a fierce hunter! Teodora’s insight: Feathered predator, inspired raptor hunting theories, well-studied from Cloverly fossils.
Dromaeosaurus albertensis	“Running lizard, Alberta’s”	Order: Saurischia, Suborder: Theropoda, Infraorder: Coelurosauria, Maniraptoria, Family: Dromaeosauridae	~2 m long, like a large dog	Alberta, Canada	Carnivore	Thea’s log: Bolted after prey with sharp teeth and claws! Teodora’s insight: Robust skull, feathered, known from partial remains, a key North American raptor.
Saurornitholestes sullivani	“Lizard-bird thief, Sullivan’s”	Order: Saurischia, Suborder: Theropoda, Infraorder: Coelurosauria, Maniraptoria, Family: Dromaeosauridae	~1.8 m long, like a large dog	Alberta, Canada	Carnivore	Thea’s log: A brainy raptor, hunting with sharp, curved claws! Teodora’s insight: Feathered with large brain, recently distinguished, close to Velociraptor in behavior.
Velociraptor osmolskae	“Swift thief, Osmolska’s”	Order: Saurischia, Suborder: Theropoda, Infraorder: Coelurosauria, Maniraptoria, Family: Dromaeosauridae	~2 m long, like a large dog	Gobi Desert, Mongolia	Carnivore	Thea’s log: Hunted in packs, slashing with sickle claws! Teodora’s insight: Feathered predator, known from fighting fossils, distinct from V. mongoliensis.
Archaeopteryx albersdoerferi	“Ancient wing, Albersdörfer’s”	Order: Saurischia, Suborder: Theropoda, Infraorder: Coelurosauria, Maniraptoria	~0.5 m long, like a small cat	Bavaria, Germany	Carnivore	Thea’s log: Flew like a prehistoric bird with feathered wings! Teodora’s insight: Taxonomy debated; belongs in Theropoda (Maniraptora), not separate order, key for dinosaur-bird evolution.
Ceratosaurus nasicornis	“Horned lizard, nose horn”	Order: Saurischia, Suborder: Theropoda, Infraorder: Ceratosauria, Family: Ceratosauridae	~6 m long, like a small bus	Colorado, USA; Portugal	Carnivore	Thea’s log: Charged with a nasal horn and blade-like teeth! Teodora’s insight: Robust build with horn for display, found in Morrison and Lourinhã formations.
Dilophosaurus wetherilli	“Two-crested lizard, Wetherill’s”	Order: Saurischia, Suborder: Theropoda, Infraorder: Ceratosauria, Family: Ceratosauridae	~7 m long, like a small bus	Arizona, USA	Carnivore	Thea’s log: Flashed double crests, hunting in Jurassic rivers! Teodora’s insight: Crests likely for display, not venomous as in movies, known from Kayenta fossils.
Elaphrosaurus bambergi	“Lightweight lizard, Bamberg’s”	Order: Saurischia, Suborder: Theropoda, Infraorder: Ceratosauria, Family: Ceratosauridae	~6 m long, like a small bus	Lindi, Tanzania	Carnivore	Thea’s log: Raced after prey with a long neck and light build! Teodora’s insight: Slender and fast, possibly chased small prey, known from Tendaguru partial skeleton.
Eustreptospondylus oxoniensis	“Well-curved vertebra, Oxford’s”	Order: Saurischia, Suborder: Theropoda, Infraorder: Carnosauria, Family: Megalosauridae	~7 m long, like a small bus	Oxfordshire, England	Carnivore	Thea’s log: Stalked Jurassic shores with powerful jaws! Teodora’s insight: Robust predator, subadult skeleton from Oxford Clay, early carnosaur.
Giganotosaurus carolinii	“Giant southern lizard, Carolina’s”	Order: Saurischia, Suborder: Theropoda, Infraorder: Carnosauria, Family: Megalosauridae	~14 m long, like a large bus	Neuquén, Argentina	Carnivore	Thea’s log: A massive predator, rivaling T. rex in size! Teodora’s insight: Apex predator with serrated teeth, hunted sauropods, known from Candeleros fossils.
Poekilopleuron bucklandii	“Varied rib, Buckland’s”	Order: Saurischia, Suborder: Theropoda, Infraorder: Carnosauria, Family: Megalosauridae	~6 m long, like a small bus	Normandy, France	Carnivore	Thea’s log: Hunted with strong arms in Jurassic Europe! Teodora’s insight: Early predator with sharp teeth, known from partial remains in Calcaire de Caen.
Proceratosaurus bradleyi	“Before horned lizard, Bradley’s”	Order: Saurischia, Suborder: Theropoda, Infraorder: Carnosauria, Family: Megalosauridae	~3 m long, like a small car	Gloucestershire, England	Carnivore	Thea’s log: A small hunter with a crest, ancestor to giants! Teodora’s insight: Early tyrannosauroid with nasal crest, known from Middle Jurassic fossils.
Allosaurus europaeus	“Different lizard, Europe’s”	Order: Saurischia, Suborder: Theropoda, Infraorder: Carnosauria, Family: Allosauridae	~11.8 m long, like a large van	Portugal, USA	Carnivore	Thea’s log: Slashed prey with large claws in Jurassic forests! Teodora’s insight: Distinct from A. fragilis, apex predator in Lourinhã, and Morrison, hunted sauropods.
Yangchuanosaurus zigongensis	“Yangchuan lizard, Zigong’s”	Order: Saurischia, Suborder: Theropoda, Infraorder: Carnosauria, Family: Allosauridae	~8 m long, like a large van	Sichuan, China	Carnivore	Thea’s log: Roamed Jurassic China, tackling big prey! Teodora’s insight: Robust skull and teeth for hunting sauropods, well-preserved in Shaximiao Formation.
Acrocanthosaurus atokensis	“High-spined lizard, Atoka’s”	Order: Saurischia, Suborder: Theropoda, Infraorder: Carnosauria, Family: Spinosauridae	~11 m long, like a large van	Oklahoma, USA	Carnivore	Thea’s log: Stalked with a sail-like ridge on its back! Teodora’s insight: Belongs to Carcharodontosauridae, not Spinosauridae; neural spines for display, found in Antlers Formation.
Spinosaurus aegyptiacus	“Spine lizard, Egypt’s”	Order: Saurischia, Suborder: Theropoda, Infraorder: Carnosauria, Family: Spinosauridae	~15 m long, like a double-decker bus	Bahariya, Egypt	Piscivore/Carnivore	Thea’s log: Paddled rivers, fishing with a massive sail! Teodora’s insight: Semi-aquatic with long snout, sail for display or thermoregulation, known from Bahariya fossils.
Albertosaurus sarcophagus	“Alberta lizard, flesh-eater”	Order: Saurischia, Suborder: Theropoda, Infraorder: Carnosauria, Family: Tyrannosauridae	~9 m long, like a large van	Alberta, Canada	Carnivore	Thea’s log: Chased hadrosaurs with sharp teeth and speed! Teodora’s insight: Smaller tyrannosaur, hunted in packs, well-studied from Horseshoe Canyon fossils.
Alioramus altai	“Different branch, Altai’s”	Order: Saurischia, Suborder: Theropoda, Infraorder: Carnosauria, Family: Tyrannosauridae	~6 m long, like a small bus	Gobi Desert, Mongolia	Carnivore	Thea’s log: A slender tyrannosaur with small horns! Teodora’s insight: Possibly juvenile Tarbosaurus, long snout for hunting, known from Nemegt Formation.
Daspletosaurus horneri	“Frightful lizard, Horner’s”	Order: Saurischia, Suborder: Theropoda, Infraorder: Carnosauria, Family: Tyrannosauridae	~9 m long, like a large van	Montana, USA	Carnivore	Thea’s log: Crushed bones with a powerful bite! Teodora’s insight: Social hunter with robust skull, recently distinguished, found in Two Medicine Formation.
Tarbosaurus bataar	“Alarming lizard, hero”	Order: Saurischia, Suborder: Theropoda, Infraorder: Carnosauria, Family: Tyrannosauridae	~12 m long, like a large van	Gobi Desert, Mongolia	Carnivore	Thea’s log: Ruled Asia with a bone-crushing bite! Teodora’s insight: Close to T. rex, apex predator, well-preserved in Nemegt Formation.
Tyrannosaurus rex	“Tyrant lizard king”	Order: Saurischia, Suborder: Theropoda, Infraorder: Carnosauria, Family: Tyrannosauridae	~12.5 m long, like a large bus	Montana, Wyoming, USA	Carnivore	Thea’s log: The ultimate predator, stomping with tiny arms! Teodora’s insight: Massive jaws, feathered juveniles, iconic from Hell Creek and Lance formations.

NAME MEANS: CLASSIFICATION: SIZE COMPARISON: PLACE: DIET: DETAILS: CHART TABLE: 🦖 Theropoda – The Predatory Elite Order: Saurischia Suborder: Theropoda (Carnivorous Dinosaurs) Infraorder: Coelurosauria Family: Podokesauridae Coelophysis bauri, Procompsognathus triassicus, Saltopus elginensis Family: Coeluridae Coelurus fragilis, Moros intrepidus Family: Compsognathidae Compsognathus longipes, Sinosauropteryx lingyuanensis Family: Ornithomimidae Dromiceiomimus samueli, Gallimimus bullatus, Ornithomimus velox, Struthiomimus altus Family: Deinocheiridae Deinocheirus mirificus Infraorder: Coelurosauria, Maniraptoria Family: Oviraptoridae Oviraptor philoceratops Family: Therizinosauridae Therizinosaurus cheloniformis Family: Saurornithoididae Stenonychosaurus inequalis, Troodon formosus Family: Dromaeosauridae Bambiraptor feinbergi, Deinonychus antirrhopus, Dromaeosaurus albertensis, Saurornitholestes sullivani, Velociraptor osmolskae Order: Archaeopterygiformes: Archaeopteryx albersdoerferi Infraorder: Ceratosauria Family: Ceratosauridae Ceratosaurus nasicornis, Dilophosaurus wetherilli, Elaphrosaurus bambergi Infraorder: Carnosauria Family: Megalosauridae Eustreptospondylus oxoniensis, Giganotosaurus carolinii, Poekilopleuron bucklandii, Proceratosaurus bradleyi Family: Allosauridae Allosaurus europaeus, Yangchuanosaurus zigongensis Family: Spinosauridae Acrocanthosaurus atokensis, Spinosaurus aegyptiacus Family: Tyrannosauridae Albertosaurus sarcophagus, Alioramus altai, Daspletosaurus horneri, Tarbosaurus bataar, Tyrannosaurus Rex

Sauropodomorpha Classification Table

Hold onto your explorer hats, dino fans! Thea Stilton, voiced by Sarah Edmondson, and Teodora Villavicencio, voiced by Annemarie Blanco, are stomping through the world of Sauropodomorpha—the Gentle Giants! Join us on this colossal adventure to meet these massive plant-eaters and one curious imposter!

Name	Name Means	Classification	Size Comparison	Place	Diet	Details
Sauropodomorpha – The Gentle Giants
Herrerasaurus ischigualastensis	“Herrera’s lizard, Ischigualasto’s”	Order: Saurischia, Suborder: Sauropodomorpha, Infraorder: Prosauropoda, Family: Herrerasauridae	~4–6 m long, like a small bus	San Juan, Argentina	Carnivore	Thea’s log: Charged through Triassic forests, snapping up prey with sharp teeth! Teodora’s insight: Early dinosaur, possibly a theropod, with serrated teeth for slicing, found in Ischigualasto bone beds.
Sanjuansaurus gordilloi	“San Juan lizard, Gordillo’s”	Order: Saurischia, Suborder: Sauropodomorpha, Infraorder: Prosauropoda, Family: Herrerasauridae	~3 m long, like a small car	San Juan, Argentina	Carnivore	Thea’s log: A nimble hunter, chasing small critters in Triassic valleys! Teodora’s insight: Compact predator, recently described, possibly a basal saurischian, known from partial skeletons.
Smurfette (Smurfs 2025)	“Little Smurf girl”	Order: Saurischia, Suborder: Sauropodomorpha, Infraorder: Prosauropoda, Family: Herrerasauridae	~0.19 m tall, like a small doll	Belgium (Fictional)	Omnivore (Fictional)	Thea’s log: Not a dino, but a magical Smurf leading adventures in 2025! Teodora’s insight: Fictional Smurfs character, voiced by Rihanna, not a fossil; included for fun, no paleontological data.
Staurikosaurus pricei	“Southern cross lizard, Price’s”	Order: Saurischia, Suborder: Sauropodomorpha, Infraorder: Prosauropoda, Family: Herrerasauridae	~2 m long, like a large dog	Rio Grande do Sul, Brazil	Carnivore	Thea’s log: Darted through Triassic jungles, hunting with sharp teeth! Teodora’s insight: Early dinosaur, possibly a theropod, known from partial skeleton in Santa Maria Formation.
Anchisaurus polyzelus	“Near lizard, many-protected”	Order: Saurischia, Suborder: Sauropodomorpha, Infraorder: Prosauropoda, Family: Anchisauridae	~2 m long, like a large dog	Connecticut, USA	Herbivore	Thea’s log: Munched low plants with a slender neck in Jurassic forests! Teodora’s insight: Early herbivore with leaf-shaped teeth, bipedal, found in Portland Formation.
Efraasia minor	“Efroasia’s minor”	Order: Saurischia, Suborder: Sauropodomorpha, Infraorder: Prosauropoda, Family: Anchisauridae	~2.5 m long, like a small car	Baden-Württemberg, Germany	Herbivore	Thea’s log: Nibbled plants as a juvenile, roaming Triassic hills! Teodora’s insight: Known from juvenile fossils, long neck for browsing, found in Löwenstein Formation.
Eoraptor lunensis	“Dawn thief, moon’s”	Order: Saurischia, Suborder: Sauropodomorpha, Infraorder: Prosauropoda, Family: Anchisauridae	~1 m long, like a small dog	San Juan, Argentina	Omnivore	Thea’s log: A tiny pioneer, eating plants and small prey in Triassic times! Teodora’s insight: Debated as basal saurischian, heterodont teeth suggest mixed diet, found in Ischigualasto.
Thecodontosaurus antiquus	“Socket-toothed lizard, ancient”	Order: Saurischia, Suborder: Sauropodomorpha, Infraorder: Prosauropoda, Family: Anchisauridae	~2.5 m long, like a small car	Bristol, England	Herbivore	Thea’s log: Grazed on tough plants with socketed teeth in Triassic caves! Teodora’s insight: Bipedal or quadrupedal, early herbivore, well-preserved in Magnesian Conglomerate.
Massospondylus kaalae	“Longer vertebra, Kaala’s”	Order: Saurischia, Suborder: Sauropodomorpha, Infraorder: Prosauropoda, Family: Plateosauridae	~4–6 m long, like a small bus	Free State, South Africa	Herbivore	Thea’s log: Reached high branches with a long neck, a Jurassic giant! Teodora’s insight: Fossils suggest parental care, recently distinguished, found in Elliot Formation.
Mussaurus patagonicus	“Mouse lizard, Patagonia’s”	Order: Saurischia, Suborder: Sauropodomorpha, Infraorder: Prosauropoda, Family: Plateosauridae	~3 m long (juvenile), like a small car	Santa Cruz, Argentina	Herbivore	Thea’s log: A “mouse” that grew big, munching plants in Jurassic plains! Teodora’s insight: Named for tiny juvenile fossils, adults larger, found in Laguna Colorada Formation.
Plateosaurus gracilis	“Broad lizard, slender”	Order: Saurischia, Suborder: Sauropodomorpha, Infraorder: Prosauropoda, Family: Plateosauridae	~5–8 m long, like a large van	Bavaria, Germany	Herbivore	Thea’s log: Roamed in herds, browsing high vegetation in Triassic forests! Teodora’s insight: Long neck and tail, bone beds show social behavior, found in Löwenstein Formation.
Riojasaurus incertus	“La Rioja lizard, uncertain”	Order: Saurischia, Suborder: Sauropodomorpha, Infraorder: Prosauropoda, Family: Melanorosauridae	~10 m long, like a school bus	La Rioja, Argentina	Herbivore	Thea’s log: A hefty plant-eater, paving the way for giant sauropods! Teodora’s insight: Heavy build, transitional to sauropods, multiple skeletons from Los Colorados Formation.
Barapasaurus tagorei	“Big-leg lizard, Tagore’s”	Order: Saurischia, Suborder: Sauropodomorpha, Infraorder: Sauropoda, Family: Cetiosauridae	~14 m long, like a large bus	Maharashtra, India	Herbivore	Thea’s log: Stretched its long legs to reach Jurassic treetops! Teodora’s insight: Early sauropod with long neck, partial skeletons found in Kota Formation.
Cetiosaurus oxoniensis	“Whale lizard, Oxford’s”	Order: Saurischia, Suborder: Sauropodomorpha, Infraorder: Sauropoda, Family: Cetiosauridae	~16 m long, like a double-decker bus	Oxfordshire, England	Herbivore	Thea’s log: Grazed like a giant whale on land, munching Jurassic plants! Teodora’s insight: Named for massive size, long neck and tail, found in Oxford Clay.
Brachiosaurus altithorax	“Arm lizard, deep chest”	Order: Saurischia, Suborder: Sauropodomorpha, Infraorder: Sauropoda, Family: Brachiosauridae	~25 m long, like a train carriage	Colorado, USA; China	Herbivore	Thea’s log: Towered like a giraffe, nibbling treetops in Jurassic forests! Teodora’s insight: Long front limbs for high browsing, iconic from Morrison and Ziliujing Formation fossils.
Sauroposeidon proteles	“Earthquake lizard, perfect before”	Order: Saurischia, Suborder: Sauropodomorpha, Infraorder: Sauropoda, Family: Brachiosauridae	~28 m long, like a blue whale	Oklahoma, USA	Herbivore	Thea’s log: A skyscraper of a dinosaur, reaching the highest branches! Teodora’s insight: Extremely long neck, one of tallest dinosaurs, known from Antlers Formation vertebrae.
Camarasaurus supremus	“Chambered lizard, supreme”	Order: Saurischia, Suborder: Sauropodomorpha, Infraorder: Sauropoda, Family: Camarasauridae	~18 m long, like a large bus	Wyoming, USA	Herbivore	Thea’s log: Chowed down on tough plants with a boxy skull! Teodora’s insight: Hollow vertebrae, strong teeth, well-preserved skeletons from Morrison Formation.
Euhelopus zdanskyi	“Good marsh foot, Zdansky’s”	Order: Saurischia, Suborder: Sauropodomorpha, Infraorder: Sauropoda, Family: Camarasauridae	~15 m long, like a double-decker bus	Shandong, China	Herbivore	Thea’s log: Grazed in Cretaceous wetlands, snapping up soft plants! Teodora’s insight: Long neck for wetland browsing, nearly complete skeleton from Mengyin Formation.
Opisthocoelicaudia skarzynskii	“Posterior hollow tail, Skarzynski’s”	Order: Saurischia, Suborder: Sauropodomorpha, Infraorder: Sauropoda, Family: Camarasauridae	~12 m long, like a large van	Gobi Desert, Mongolia	Herbivore	Thea’s log: Roamed Cretaceous plains with a short, strong tail! Teodora’s insight: Hollow vertebrae, strong limbs for grazing, partial skeleton from Nemegt Formation.
Apatosaurus ajax	“Deceptive lizard, Ajax”	Order: Saurischia, Suborder: Sauropodomorpha, Infraorder: Sauropoda, Family: Diplodocidae	~24 m long, like a train carriage	Wyoming, USA	Herbivore	Thea’s log: Whipped its tail to fend off predators in Jurassic plains! Teodora’s insight: Long neck for low browsing, distinct from Brontosaurus, found in Morrison Formation.
Dicraeosaurus sattleri	“Forked lizard, Sattler’s”	Order: Saurischia, Suborder: Sauropodomorpha, Infraorder: Sauropoda, Family: Diplodocidae	~12 m long, like a large van	Lindi, Tanzania	Herbivore	Thea’s log: Nibbled low plants with a short neck in Jurassic Africa! Teodora’s insight: Forked dorsal spines, well-preserved in Tendaguru Formation, smaller diplodocid.
Diplodocus hallorum	“Double beam, Hallorum’s”	Order: Saurischia, Suborder: Sauropodomorpha, Infraorder: Sauropoda, Family: Diplodocidae	~29 m long, like a train carriage	New Mexico, USA	Herbivore	Thea’s log: Lashed its super-long tail like a whip in Jurassic forests! Teodora’s insight: 80 tail vertebrae, distinct from D. carnegii, found in Morrison Formation.
Mamenchisaurus sinocanadorum	“Mamenchi lizard, Sino-Canadian”	Order: Saurischia, Suborder: Sauropodomorpha, Infraorder: Sauropoda, Family: Diplodocidae	~26 m long, like a blue whale	Sichuan, China	Herbivore	Thea’s log: Stretched its massive neck to reach Jurassic treetops! Teodora’s insight: Neck half its body length, one of longest dinosaurs, found in Shaximiao Formation.
Supersaurus vivianae	“Super lizard, Vivian’s”	Order: Saurischia, Suborder: Sauropodomorpha, Infraorder: Sauropoda, Family: Diplodocidae	~40 m long, like a train	Colorado, USA	Herbivore	Thea’s log: A colossal giant, grazing Jurassic plains with ease! Teodora’s insight: One of longest dinosaurs, long neck and tail, known from large Morrison Formation bones.
Alamosaurus sanjuanensis	“Alamo lizard, San Juan’s”	Order: Saurischia, Suborder: Sauropodomorpha, Infraorder: Sauropoda, Family: Titanosauridae	~20 m long, like a large bus	New Mexico, USA	Herbivore	Thea’s log: Roamed Cretaceous plains, munching vast grasslands! Teodora’s insight: Massive titanosaur, long neck for grazing, found in Javelina Formation.
Dreadnoughtus schrani	“Fears nothing, Schran’s”	Order: Saurischia, Suborder: Sauropodomorpha, Infraorder: Sauropoda, Family: Titanosauridae	~26 m long, like a blue whale	Santa Cruz, Argentina	Herbivore	Thea’s log: A fearless giant, towering over Cretaceous forests! Teodora’s insight: Nearly complete skeleton, weighed up to 59 tons, found in Cerro Fortaleza Formation.
Saltasaurus loricatus	“Salta lizard, armored”	Order: Saurischia, Suborder: Sauropodomorpha, Infraorder: Sauropoda, Family: Titanosauridae	~12 m long, like a large van	Salta, Argentina	Herbivore	Thea’s log: Wore bony armor, a tough plant-eater in Cretaceous times! Teodora’s insight: Armored with osteoderms, smaller titanosaur, found in Lecho Formation.

NAME MEANS: CLASSIFICATION: SIZE COMPARISON: PLACE: DIET: DETAILS: CHART TABLE: 🦕 Sauropodomorpha – The Gentle Giants Order: Saurischia Suborder: Sauropodomorpha Infraorder: Prosauropoda Family: Herrerasauridae Herrerasaurus ischigualastensis, Sanjuansaurus gordilloi, Smurfette (Smurfs 2025), 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

Cerapoda Classification Table

Grab your explorer gear, dino adventurers! Thea Stilton, voiced by Sarah Edmondson, and Teodora Villavicencio, voiced by Annemarie Blanco, are charging into the world of Cerapoda—Beaked, Horned, and Armored! Join us on this epic dino quest to discover these plant-munching, head-butting, horned heroes!

Name	Name Means	Classification	Size Comparison	Place	Diet	Details
Cerapoda – Beaked, Horned, and Armored
Lesothosaurus diagnosticus	“Lesotho lizard, diagnostic”	Order: Ornithischia, Suborder: Cerapoda, Infraorder: Ornithopoda, Family: Fabrosauridae	~2 m long, like a large dog	Lesotho, South Africa	Herbivore	Thea’s log: Scurried through Triassic brush, nibbling plants with a small beak! Teodora’s insight: Early ornithischian with slender build, bipedal, found in Elliot Formation.
Scutellosaurus lawleri	“Little shield lizard, Lawler’s”	Order: Ornithischia, Suborder: Cerapoda, Infraorder: Ornithopoda, Family: Fabrosauridae	~1.2 m long, like a small dog	Arizona, USA	Herbivore	Thea’s log: A tiny dino with bony plates, munching Jurassic greens! Teodora’s insight: Likely a basal thyreophoran due to armor, bipedal, found in Kayenta Formation.
Echinodon becklesii	“Hedgehog tooth, Beckles’”	Order: Ornithischia, Suborder: Cerapoda, Infraorder: Ornithopoda, Family: Heterodontosauridae	~0.6 m long, like a small cat	Sussex, England	Herbivore	Thea’s log: Chewed tough plants with spiky teeth in Jurassic forests! Teodora’s insight: Tiny with varied teeth, likely omnivorous, found in Purbeck Group.
Heterodontosaurus tucki	“Different-toothed lizard, Tuck’s”	Order: Ornithischia, Suborder: Cerapoda, Infraorder: Ornithopoda, Family: Heterodontosauridae	~1.2 m long, like a small dog	Eastern Cape, South Africa	Herbivore/Omnivore	Thea’s log: Munched plants and maybe bugs with unique teeth! Teodora’s insight: Tusks for display or combat, well-preserved in Elliot Formation.
Pisanosaurus mertii	“Pisano’s lizard, Merti’s”	Order: Ornithischia, Suborder: Cerapoda, Infraorder: Ornithopoda, Family: Heterodontosauridae	~1 m long, like a small dog	La Rioja, Argentina	Herbivore	Thea’s log: A tiny plant-eater, dodging predators in Triassic plains! Teodora’s insight: Debated as ornithischian or silesaurid, fragmentary fossils from Ischigualasto.
Callovosaurus leedsi	“Callovian lizard, Leeds’”	Order: Ornithischia, Suborder: Cerapoda, Infraorder: Ornithopoda, Family: Hypsilophodontidae	~3.5 m long, like a small car	Oxfordshire, England	Herbivore	Thea’s log: Grazed Jurassic meadows with speedy legs! Teodora’s insight: Early iguanodontian, known from femur in Oxford Clay, bipedal browser.
Dryosaurus elderae	“Oak lizard, Elder’s”	Order: Ornithischia, Suborder: Cerapoda, Infraorder: Ornithopoda, Family: Hypsilophodontidae	~3 m long, like a small car	Wyoming, USA	Herbivore	Thea’s log: Darted through Jurassic forests, nibbling low plants! Teodora’s insight: Fast runner with leaf-shaped teeth, found in Morrison Formation.
Hypsilophodon foxii	“High-ridge tooth, Fox’s”	Order: Ornithischia, Suborder: Cerapoda, Infraorder: Ornithopoda, Family: Hypsilophodontidae	~1.8 m long, like a large dog	Isle of Wight, England	Herbivore	Thea’s log: Zipped around Cretaceous cliffs, chomping soft plants! Teodora’s insight: Agile biped with self-sharpening teeth, well-studied from Wessex Formation.
Nanosaurus agilis	“Dwarf lizard, agile”	Order: Ornithischia, Suborder: Cerapoda, Infraorder: Ornithopoda, Family: Hypsilophodontidae	~2 m long, like a large dog	Colorado, USA	Herbivore	Thea’s log: A speedy dwarf, grazing Jurassic plains! Teodora’s insight: Small and fast, known from partial remains in Morrison Formation, possibly synonymous.
Parksosaurus warreni	“Parks’ lizard, Warren’s”	Order: Ornithischia, Suborder: Cerapoda, Infraorder: Ornithopoda, Family: Hypsilophodontidae	~2.5 m long, like a small car	Alberta, Canada	Herbivore	Thea’s log: Munched Cretaceous plants with quick dashes! Teodora’s insight: Bipedal with strong hindlimbs, partial skeleton from Horseshoe Canyon Formation.
Thescelosaurus garbanii	“Wonderful lizard, Garbani’s”	Order: Ornithischia, Suborder: Cerapoda, Infraorder: Ornithopoda, Family: Hypsilophodontidae	~3.5 m long, like a small car	Montana, USA	Herbivore	Thea’s log: Roamed Cretaceous rivers, chewing tough foliage! Teodora’s insight: Robust build, possible preserved heart, found in Hell Creek Formation.
Camptosaurus dispar	“Bent lizard, different”	Order: Ornithischia, Suborder: Cerapoda, Infraorder: Ornithopoda, Family: Iguanodontidae	~6 m long, like a small bus	Wyoming, USA	Herbivore	Thea’s log: Browsed Jurassic forests with a beak and strong jaws! Teodora’s insight: Early iguanodont with thumb spike, multiple skeletons from Morrison Formation.
Iguanodon bernissartensis	“Iguana tooth, Bernissart’s”	Order: Ornithischia, Suborder: Cerapoda, Infraorder: Ornithopoda, Family: Iguanodontidae	~11.5 m long, like a large van	Bernissart, Belgium	Herbivore	Thea’s log: Grazed with thumb spikes for defense in Cretaceous swamps! Teodora’s insight: Large herbivore with grinding teeth, mass finds in Bernissart mines.
Mantellisaurus atherfieldensis	“Mantell’s lizard, Atherfield’s”	Order: Ornithischia, Suborder: Cerapoda, Infraorder: Ornithopoda, Family: Iguanodontidae	~7 m long, like a small bus	Isle of Wight, England	Herbivore	Thea’s log: Nibbled plants with a lighter build than Iguanodon! Teodora’s insight: More gracile than Iguanodon, found in Wessex Formation, bipedal/quadrupedal.
Muttaburrasaurus langdoni	“Muttaburra lizard, Langdon’s”	Order: Ornithischia, Suborder: Cerapoda, Infraorder: Ornithopoda, Family: Iguanodontidae	~8 m long, like a large van	Queensland, Australia	Herbivore	Thea’s log: Chowed down in Cretaceous Australia with a nasal hump! Teodora’s insight: Possible vocalizing crest, well-preserved in Mackunda Formation.
Ouranosaurus nigeriensis	“Brave lizard, Niger’s”	Order: Ornithischia, Suborder: Cerapoda, Infraorder: Ornithopoda, Family: Iguanodontidae	~7 m long, like a small bus	Agadez, Niger	Herbivore	Thea’s log: Sported a sail-back, grazing Cretaceous African plains! Teodora’s insight: Neural spines for display or thermoregulation, found in Elrhaz Formation.
Probactrosaurus gobiensis	“Before Bactrosaurus, Gobi’s”	Order: Ornithischia, Suborder: Cerapoda, Infraorder: Ornithopoda, Family: Iguanodontidae	~5.5 m long, like a small bus	Inner Mongolia, China	Herbivore	Thea’s log: Munched plants in Cretaceous Asia, an early hadrosaur! Teodora’s insight: Transitional to hadrosaurs, found in Dashuiguo Formation, bipedal/quadrupedal.
Bactrosaurus johnsoni	“Club lizard, Johnson’s”	Order: Ornithischia, Suborder: Cerapoda, Infraorder: Ornithopoda, Family: Hadrosauridae (Saurolophinae)	~6 m long, like a small bus	Inner Mongolia, China	Herbivore	Thea’s log: Grazed with a beak in Cretaceous forests! Teodora’s insight: Early hadrosaur with grinding teeth, found in Iren Dabasu Formation.
Edmontosaurus regalis	“Edmonton lizard, royal”	Order: Ornithischia, Suborder: Cerapoda, Infraorder: Ornithopoda, Family: Hadrosauridae (Saurolophinae)	~9 m long, like a large van	Alberta, Canada	Herbivore	Thea’s log: Roamed in herds, munching plants with a flat beak! Teodora’s insight: Duck-billed, skin impressions show scales, found in Horseshoe Canyon Formation.
Hadrosaurus foulkii	“Sturdy lizard, Foulke’s”	Order: Ornithischia, Suborder: Cerapoda, Infraorder: Ornithopoda, Family: Hadrosauridae (Saurolophinae)	~8 m long, like a large van	New Jersey, USA	Herbivore	Thea’s log: First named duckbill, grazing Cretaceous marshes! Teodora’s insight: Partial skeleton, early hadrosaur discovery, found in Woodbury Formation.
Kritosaurus navajovius	“Separated lizard, Navajo’s”	Order: Ornithischia, Suborder: Cerapoda, Infraorder: Ornithopoda, Family: Hadrosauridae (Saurolophinae)	~9 m long, like a large van	New Mexico, USA	Herbivore	Thea’s log: Nibbled plants with a nasal crest in Cretaceous plains! Teodora’s insight: Crest possibly for display, found in Kirtland Formation.
Maiasaura peeblesorum	“Good mother lizard, Peebles’”	Order: Ornithischia, Suborder: Cerapoda, Infraorder: Ornithopoda, Family: Hadrosauridae (Saurolophinae)	~9 m long, like a large van	Montana, USA	Herbivore	Thea’s log: Cared for babies in Cretaceous nests! Teodora’s insight: Fossils show nesting behavior, found in Two Medicine Formation, social herbivore.
Prosaurolophus maximus	“Before Saurolophus, greatest”	Order: Ornithischia, Suborder: Cerapoda, Infraorder: Ornithopoda, Family: Hadrosauridae (Saurolophinae)	~8 m long, like a large van	Alberta, Canada	Herbivore	Thea’s log: Honked with a small crest, grazing in herds! Teodora’s insight: Nasal crest for vocalization, found in Dinosaur Park Formation.
Saurolophus osborni	“Crested lizard, Osborn’s”	Order: Ornithischia, Suborder: Cerapoda, Infraorder: Ornithopoda, Family: Hadrosauridae (Saurolophinae)	~9.5 m long, like a large van	Alberta, Canada	Herbivore	Thea’s log: Trumpeted through Cretaceous forests with a long crest! Teodora’s insight: Backward-curved crest for calls, found in Horseshoe Canyon Formation.
Shantungosaurus giganteus	“Shandong lizard, giant”	Order: Ornithischia, Suborder: Cerapoda, Infraorder: Ornithopoda, Family: Hadrosauridae (Saurolophinae)	~15 m long, like a double-decker bus	Shandong, China	Herbivore	Thea’s log: A giant duckbill, chomping tons of Cretaceous plants! Teodora’s insight: One of largest hadrosaurs, robust build, found in Xingezhuang Formation.
Corythosaurus casuarius	“Helmet lizard, cassowary’s”	Order: Ornithischia, Suborder: Cerapoda, Infraorder: Ornithopoda, Family: Hadrosauridae (Lambeosaurinae)	~9 m long, like a large van	Alberta, Canada	Herbivore	Thea’s log: Honked with a helmet-like crest in Cretaceous swamps! Teodora’s insight: Hollow crest for vocalization, skin impressions, found in Dinosaur Park Formation.
Hypacrosaurus stebingeri	“Near highest lizard, Stebinger’s”	Order: Ornithischia, Suborder: Cerapoda, Infraorder: Ornithopoda, Family: Hadrosauridae (Lambeosaurinae)	~9 m long, like a large van	Montana, USA	Herbivore	Thea’s log: Sang with a tall crest, grazing in herds! Teodora’s insight: Crest for vocalization, nests show parental care, found in Two Medicine Formation.
Lambeosaurus magnicristatus	“Lambe’s lizard, large-crested”	Order: Ornithischia, Suborder: Cerapoda, Infraorder: Ornithopoda, Family: Hadrosauridae (Lambeosaurinae)	~9 m long, like a large van	Alberta, Canada	Herbivore	Thea’s log: Boomed with a hatchet-shaped crest in Cretaceous forests! Teodora’s insight: Complex crest for calls, well-preserved in Dinosaur Park Formation.
Olorotitan arharensis	“Swan giant, Arhara’s”	Order: Ornithischia, Suborder: Cerapoda, Infraorder: Ornithopoda, Family: Hadrosauridae (Lambeosaurinae)	~8 m long, like a large van	Amur Region, Russia	Herbivore	Thea’s log: Honked like a swan with a fan-shaped crest! Teodora’s insight: Large crest for display, nearly complete skeleton from Udurchukan Formation.
Parasaurolophus walkeri	“Near crested lizard, Walker’s”	Order: Ornithischia, Suborder: Cerapoda, Infraorder: Ornithopoda, Family: Hadrosauridae (Lambeosaurinae)	~9.5 m long, like a large van	Alberta, Canada	Herbivore	Thea’s log: Tooted with a long tube crest, a Cretaceous rockstar! Teodora’s insight: Long hollow crest for loud calls, found in Dinosaur Park Formation.
Tsintaosaurus spinorhinus	“Qingdao lizard, spine-nosed”	Order: Ornithischia, Suborder: Cerapoda, Infraorder: Ornithopoda, Family: Hadrosauridae (Lambeosaurinae)	~8.5 m long, like a large van	Shandong, China	Herbivore	Thea’s log: Grazed with a unicorn-like crest in Cretaceous Asia! Teodora’s insight: Forward-leaning crest, possibly for display, found in Jingangkou Formation.
Homalocephale calathocercos	“Level head, beautiful tail”	Order: Ornithischia, Suborder: Cerapoda, Infraorder: Ceratopia, Family: Pachycephalosauridae	~1.8 m long, like a large dog	Gobi Desert, Mongolia	Herbivore	Thea’s log: Head-butted rivals with a flat skull in Cretaceous plains! Teodora’s insight: Thick skull for head-butting, found in Nemegt Formation, bipedal.
Pachycephalosaurus wyomingensis	“Thick-headed lizard, Wyoming’s”	Order: Ornithischia, Suborder: Cerapoda, Infraorder: Ceratopia, Family: Pachycephalosauridae	~4.5 m long, like a small car	Wyoming, USA	Herbivore	Thea’s log: Smashed heads like a dino battering ram! Teodora’s insight: Domed skull up to 25 cm thick, likely for combat, found in Hell Creek Formation.
Prenocephale prenes	“Sloping head, forward”	Order: Ornithischia, Suborder: Cerapoda, Infraorder: Ceratopia, Family: Pachycephalosauridae	~2.4 m long, like a small car	Gobi Desert, Mongolia	Herbivore	Thea’s log: Butted heads with a rounded dome in Cretaceous Asia! Teodora’s insight: Sloped skull for head-butting, well-preserved in Nemegt Formation.
Stegoceras validum	“Roof horn, valid”	Order: Ornithischia, Suborder: Cerapoda, Infraorder: Ceratopia, Family: Pachycephalosauridae	~2 m long, like a large dog	Alberta, Canada	Herbivore	Thea’s log: Charged with a hard dome, a Cretaceous headbanger! Teodora’s insight: Thick skull for display or combat, multiple specimens from Dinosaur Park Formation.
Psittacosaurus meileyingensis	“Parrot lizard, Meileying’s”	Order: Ornithischia, Suborder: Cerapoda, Infraorder: Ceratopia, Family: Psittacosauridae	~2 m long, like a large dog	Liaoning, China	Herbivore	Thea’s log: Munched plants with a parrot-like beak in Cretaceous forests! Teodora’s insight: Early ceratopsian, skin impressions show bristles, found in Yixian Formation.
Bagaceratops rozhdestvenskyi	“Small-horned face, Rozhdestvensky’s”	Order: Ornithischia, Suborder: Cerapoda, Infraorder: Ceratopia, Family: Protoceratopidae	~1 m long, like a small dog	Gobi Desert, Mongolia	Herbivore	Thea’s log: A tiny ceratopsian, grazing with a small frill! Teodora’s insight: Small beak and frill, juvenile specimens, found in Bayan Mandahu Formation.
Leptoceratops gracilis	“Slender horned face, graceful”	Order: Ornithischia, Suborder: Cerapoda, Infraorder: Ceratopia, Family: Protoceratopidae	~2 m long, like a large dog	Alberta, Canada	Herbivore	Thea’s log: Nipped low plants with a short beak in Cretaceous plains! Teodora’s insight: Bipedal/quadrupedal, no horns, found in Scollard Formation.
Microceratus gobiensis	“Small horned, Gobi’s”	Order: Ornithischia, Suborder: Cerapoda, Infraorder: Ceratopia, Family: Protoceratopidae	~0.8 m long, like a small cat	Gobi Desert, Mongolia	Herbivore	Thea’s log: A pint-sized ceratopsian, dodging predators in Cretaceous Asia! Teodora’s insight: Synonymous with Microceratops, small frill, found in Minhe Formation.
Montanoceratops cerorhynchus	“Montana horned face, beak-horned”	Order: Ornithischia, Suborder: Cerapoda, Infraorder: Ceratopia, Family: Protoceratopidae	~3 m long, like a small car	Montana, USA	Herbivore	Thea’s log: Grazed with a short frill and beak in Cretaceous mountains! Teodora’s insight: Small nasal horn, bipedal/quadrupedal, found in St. Mary River Formation.
Protoceratops hellenikorhinus	“First horned face, Greek beak”	Order: Ornithischia, Suborder: Cerapoda, Infraorder: Ceratopia, Family: Protoceratopidae	~1.8 m long, like a large dog	Gobi Desert, Mongolia	Herbivore	Thea’s log: Wandered in herds, munching plants with a frill! Teodora’s insight: Well-preserved nests and eggs, prominent frill, found in Djadokhta Formation.
Anchiceratops ornatus	“Near horned face, ornamented”	Order: Ornithischia, Suborder: Cerapoda, Infraorder: Ceratopia, Family: Ceratopidae (long-frilled)	~5 m long, like a small bus	Alberta, Canada	Herbivore	Thea’s log: Defended with a long frill and horns in Cretaceous swamps! Teodora’s insight: Ornate frill with spikes, found in Horseshoe Canyon Formation.
Arrhinoceratops brachyops	“No-nose horned face, short-faced”	Order: Ornithischia, Suborder: Cerapoda, Infraorder: Ceratopia, Family: Ceratopidae (long-frilled)	~6 m long, like a small bus	Alberta, Canada	Herbivore	Thea’s log: Charged with a short face and long frill! Teodora’s insight: Small nasal horn, long frill, found in Horseshoe Canyon Formation.
Chasmosaurus belli	“Cleft lizard, Bell’s”	Order: Ornithischia, Suborder: Cerapoda, Infraorder: Ceratopia, Family: Ceratopidae (long-frilled)	~5 m long, like a small bus	Alberta, Canada	Herbivore	Thea’s log: Flashed a huge frill to scare predators! Teodora’s insight: Large frill with openings, likely for display, found in Dinosaur Park Formation.
Pentaceratops sternbergii	“Five-horned face, Sternberg’s”	Order: Ornithischia, Suborder: Cerapoda, Infraorder: Ceratopia, Family: Ceratopidae (long-frilled)	~6 m long, like a small bus	New Mexico, USA	Herbivore	Thea’s log: Brandished five horns and a massive frill! Teodora’s insight: Large nasal horn and frill, found in Kirtland Formation.
Torosaurus latus	“Perforated lizard, broad”	Order: Ornithischia, Suborder: Cerapoda, Infraorder: Ceratopia, Family: Ceratopidae (long-frilled)	~8 m long, like a large van	Montana, USA	Herbivore	Thea’s log: Charged with a giant frill, a Cretaceous tank! Teodora’s insight: Huge frill with holes, debated as mature Triceratops, found in Hell Creek Formation.
Triceratops horridus	“Three-horned face, rough”	Order: Ornithischia, Suborder: Cerapoda, Infraorder: Ceratopia, Family: Ceratopidae (long-frilled)	~9 m long, like a large van	Montana, USA	Herbivore	Thea’s log: Battled with three horns and a sturdy frill! Teodora’s insight: Iconic ceratopsian, massive skull, found in Hell Creek and Lance formations.
Centrosaurus apertus	“Pointed lizard, open”	Order: Ornithischia, Suborder: Cerapoda, Infraorder: Ceratopia, Family: Ceratopidae (short-frilled)	~6 m long, like a small bus	Alberta, Canada	Herbivore	Thea’s log: Charged with a nasal horn and short frill! Teodora’s insight: Nasal horn for display, bone beds show herding, found in Dinosaur Park Formation.
Nasutoceratops titusi	“Big-nose horned face, Titus’”	Order: Ornithischia, Suborder: Cerapoda, Infraorder: Ceratopia, Family: Ceratopidae (short-frilled)	~4.5 m long, like a small bus	Utah, USA	Herbivore	Thea’s log: Grazed with bull-like horns and a short frill! Teodora’s insight: Long brow horns, recently discovered, found in Kaiparowits Formation.
Pachyrhinosaurus lakustai	“Thick-nosed lizard, Lakusta’s”	Order: Ornithischia, Suborder: Cerapoda, Infraorder: Ceratopia, Family: Ceratopidae (short-frilled)	~6 m long, like a small bus	Alberta, Canada	Herbivore	Thea’s log: Bumped rivals with a bony nose boss! Teodora’s insight: Nasal boss instead of horn, found in Wapiti and Laramie Formation, social behavior.
Styracosaurus ovatus	“Spiked lizard, egg-shaped”	Order: Ornithischia, Suborder: Cerapoda, Infraorder: Ceratopia, Family: Ceratopidae (short-frilled)	~5.5 m long, like a small bus	Alberta, Canada	Herbivore	Thea’s log: Flashed a spiky frill to scare predators! Teodora’s insight: Long nasal horn, frill spikes for display, found in Dinosaur Park Formation.

NAME MEANS: CLASSIFICATION: SIZE COMPARISON: PLACE: DIET: DETAILS: CHART TABLE: 🦴 Cerapoda – Beaked, Horned, and Armored Order: Ornithischia 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 (Saurolophinae) Bactrosaurus johnsoni, Edmontosaurus regalis, Hadrosaurus foulkii, Kritosaurus navajovius, Maiasaura peeblesorum, Prosaurolophus maximus, Saurolophus osborni, Shantungosaurus giganteus Family: Hadrosauridae (Lambeosaurinae) Corythosaurus casuarius, Hypacrosaurus stebingeri, Lambeosaurus magnicristatus, Olorotitan arharensis, Parasaurolophus walkeri, Tsintaosaurus spinorhinus Infraorder: Ceratopia 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 (long-frilled ceratopsians) Anchiceratops ornatus, Arrhinoceratops brachyops, Chasmosaurus belli, Pentaceratops sternbergii, Torosaurus latus, Triceratops horridus Family: Ceratopidae (short-frilled ceratopsians) Centrosaurus apertus, Nasutoceratops titusi, Pachyrhinosaurus lakustai, Styracosaurus ovatus

Thyreophora Classification Table

Buckle up, dino explorers! Thea Stilton, voiced by Sarah Edmondson, and Teodora Villavicencio, voiced by Annemarie Blanco, are marching into the world of Thyreophora—the Armored Tanks! Join us on this armored dino quest to uncover the secrets of these plated and club-tailed giants!

Name	Name Means	Classification	Size Comparison	Place	Diet	Details
Thyreophora – The Armored Tanks
Huayangosaurus taibaii	“Huayang lizard, Taibai’s”	Order: Ornithischia, Suborder: Thyreophora, Infraorder: Stegosauria, Family: Huayangosauridae	~4.5 m long, like a small bus	Sichuan, China	Herbivore	Thea’s log: Swung small plates to fend off predators in Jurassic forests! Teodora’s insight: Early stegosaur with narrow plates, found in Shaximiao Formation, more primitive than later stegosaurs.
Tuojiangosaurus multispinus	“Tuo River lizard, many-spined”	Order: Ornithischia, Suborder: Thyreophora, Infraorder: Stegosauria, Family: Huayangosauridae	~7 m long, like a small bus	Sichuan, China	Herbivore	Thea’s log: Paraded with tall plates, munching Jurassic plants! Teodora’s insight: Multiple dorsal plates for display or defense, well-preserved in Shaximiao Formation.
Kentrosaurus aethiopicus	“Spiked lizard, African”	Order: Ornithischia, Suborder: Thyreophora, Infraorder: Stegosauria, Family: Stegosauridae	~4.5 m long, like a small bus	Lindi, Tanzania	Herbivore	Thea’s log: Bristled with sharp spikes, grazing Jurassic plains! Teodora’s insight: Paired spines on tail and hips, bone beds in Tendaguru Formation suggest herding.
Stegosaurus stenops	“Roof lizard, narrow-faced”	Order: Ornithischia, Suborder: Thyreophora, Infraorder: Stegosauria, Family: Stegosauridae	~9.5 m long, like a large van	Wyoming, USA	Herbivore	Thea’s log: Swung a spiky tail, chomping low plants with huge plates! Teodora’s insight: Iconic plates for display or thermoregulation, found in Morrison Formation.
Wuerhosaurus ordosensis	“Wuerho lizard, Ordos’”	Order: Ornithischia, Suborder: Thyreophora, Infraorder: Stegosauria, Family: Stegosauridae	~7 m long, like a small bus	Inner Mongolia, China	Herbivore	Thea’s log: Roamed Cretaceous Asia with flat plates! Teodora’s insight: Debated validity, possibly distinct, flatter plates than Stegosaurus, found in Ejinhoro Formation.
Scelidosaurus harrisonii	“Limb lizard, Harrison’s”	Order: Ornithischia, Suborder: Thyreophora, Infraorder: Ankylosauria, Family: Scelidosauridae	~4 m long, like a small car	Dorset, England	Herbivore	Thea’s log: Plodded with bony scutes, nibbling Jurassic plants! Teodora’s insight: Basal thyreophoran with small armor plates, well-preserved in Charmouth Mudstone.
Hylaeosaurus armatus	“Forest lizard, armored”	Order: Ornithischia, Suborder: Thyreophora, Infraorder: Ankylosauria, Family: Nodosauridae	~5 m long, like a small bus	Sussex, England	Herbivore	Thea’s log: Grazed with tough armor in Cretaceous forests! Teodora’s insight: Early nodosaur with bony plates, found in Wealden Group, poorly preserved.
Nodosaurus textilis	“Knobbed lizard, woven”	Order: Ornithischia, Suborder: Thyreophora, Infraorder: Ankylosauria, Family: Nodosauridae	~6 m long, like a small bus	Wyoming, USA	Herbivore	Thea’s log: Wore knobby armor, munching Cretaceous greens! Teodora’s insight: Large osteoderms for defense, found in Frontier Formation, no tail club.
Panoplosaurus mirus	“Completely armored lizard, wonderful”	Order: Ornithischia, Suborder: Thyreophora, Infraorder: Ankylosauria, Family: Nodosauridae	~7 m long, like a small bus	Alberta, Canada	Herbivore	Thea’s log: A walking tank, grazing with heavy armor! Teodora’s insight: Thick armor plates, no tail club, found in Dinosaur Park Formation.
Polacanthus foxii	“Many-spined, Fox’s”	Order: Ornithischia, Suborder: Thyreophora, Infraorder: Ankylosauria, Family: Nodosauridae	~5 m long, like a small bus	Isle of Wight, England	Herbivore	Thea’s log: Bristled with spines, chomping Cretaceous plants! Teodora’s insight: Spikes and plates for defense, found in Wessex Formation, early nodosaur.
Sauropelta edwardsorum	“Lizard shield, Edwards’”	Order: Ornithischia, Suborder: Thyreophora, Infraorder: Ankylosauria, Family: Nodosauridae	~5 m long, like a small bus	Montana, USA	Herbivore	Thea’s log: Shielded with thick armor, grazing safely! Teodora’s insight: Large shoulder spines, well-preserved in Cloverly Formation, no tail club.
Silvisaurus condrayi	“Forest lizard, Condray’s”	Order: Ornithischia, Suborder: Thyreophora, Infraorder: Ankylosauria, Family: Nodosauridae	~4 m long, like a small car	Kansas, USA	Herbivore	Thea’s log: Roamed Cretaceous forests with bony armor! Teodora’s insight: Small nodosaur with osteoderms, found in Dakota Formation, partial skeleton.
Struthiosaurus transylvanicus	“Ostrich lizard, Transylvanian”	Order: Ornithischia, Suborder: Thyreophora, Infraorder: Ankylosauria, Family: Nodosauridae	~2.5 m long, like a small car	Transylvania, Romania	Herbivore	Thea’s log: A small tank, nibbling plants in Cretaceous Europe! Teodora’s insight: Compact nodosaur with armor, found in Sânpetru Formation, fragmentary remains.
Ankylosaurus magniventris	“Fused lizard, large-bellied”	Order: Ornithischia, Suborder: Thyreophora, Infraorder: Ankylosauria, Family: Ankylosauridae	~6–11 m long, like a large van	Montana, USA	Herbivore	Thea’s log: Swung a massive tail club, a Cretaceous tank! Teodora’s insight: Heavily armored with tail club for defense, found in Hell Creek Formation.
Euoplocephalus tutus	“Well-armored head, safe”	Order: Ornithischia, Suborder: Thyreophora, Infraorder: Ankylosauria, Family: Ankylosauridae	~6 m long, like a small bus	Alberta, Canada	Herbivore	Thea’s log: Bashed predators with a tail club, grazing safely! Teodora’s insight: Bony eyelids and club, multiple specimens from Dinosaur Park Formation.
Saichania chulsanensis	“Beautiful, Chulsan’s”	Order: Ornithischia, Suborder: Thyreophora, Infraorder: Ankylosauria, Family: Ankylosauridae	~6.5 m long, like a small bus	Gobi Desert, Mongolia	Herbivore	Thea’s log: Armored beauty, munching plants in desert plains! Teodora’s insight: Robust armor and club, adapted for arid environments, found in Barun Goyot Formation.
Talarurus plicatospineus	“Basket tail, folded spine”	Order: Ornithischia, Suborder: Thyreophora, Infraorder: Ankylosauria, Family: Ankylosauridae	~5 m long, like a small bus	Gobi Desert, Mongolia	Herbivore	Thea’s log: Swung a flexible tail club, grazing Cretaceous Asia! Teodora’s insight: Interlocking armor plates, multiple skeletons from Bayan Shireh Formation.

NAME MEANS: CLASSIFICATION: SIZE COMPARISON: PLACE: DIET: DETAILS: CHART TABLE: 🛡️ Thyreophora – The Armored Tanks Order: Ornithischia Suborder: Thyreophora Infraorder: Stegosauria Family: Huayangosauridae Huayangosaurus taibaii, Tuojiangosaurus multispinus Family: Stegosauridae Kentrosaurus aethiopicus, Stegosaurus stenops, Wuerhosaurus ordosensis Infraorder: Ankylosauria Family: Scelidosauridae Scelidosaurus harrisonii 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

Prehistoric Reptiles (Based on At Home with Olaf by Hyrum Osmond)

Here is the comprehensive chart table based on the non-dinosaurian reptiles and marine reptiles traditionally included in the supplementary genus lists and appendixes of Thomas R. Holtz Jr.’s Dinosaurs: The Most Complete, Up-to-Date Encyclopedia for Dinosaur Lovers of All Ages (2007).

I have mapped out the taxonomy you provided, populated the exact paleobiology metrics (age, time, estimated sizes, locations, and original authors), and tied in the character context for Teodora from Legend Quest (Las Leyendas), where she acts as the team's tech-savvy Master of Myth.

Non-Dinosaurian Reptile & Marine Genus Chart

Family / Group	Name	Name Meaning	Age / Time	Dimensions (Length / Weight)	Where Found	Author & Year	Teodora's Comments (Legend Quest)
Protorothyrididae	Hylonomus lyelli (latidens)	"Forest dweller"	Late Carboniferous (~312 Ma)	Length: 20 cm (8 in) Weight: < 200 g	Nova Scotia, Canada	Dawson, 1860	"An ancient Canadian tiny lizard. Not a true monster, but basically the great-great-grandfather of all of them!"
Mesosauridae	Mesosaurus tenuidens	"Middle lizard"	Early Permian (~290–270 Ma)	Length: 1 m (3.3 ft) Weight: 2–5 kg	South Africa, Uruguay, Brazil	Gervais, 1865	"The first reptile to say 'nope' to land and swim back into the ocean. Handy little ghost to have around."
Plesiosauridae	Plesiosaurus dolichodeirus	"Near lizard"	Early Jurassic (~199–175 Ma)	Length: 3.5 m (11.5 ft) Weight: 450 kg	England	Conybeare, 1824	"The classic 'Loch Ness Monster' build! Those four giant flippers mean it practically flew underwater."
Cryptocleididae	Cryptoclidus richardsoni	"Hidden clavicle"	Middle Jurassic (~166–164 Ma)	Length: 3 m (13 ft) Weight: 300 kg	England, France	Seeley, 1892	"A long-necked hunter with interlocking teeth that acted like a cage. No fish escaped this specter."
Elasmosauridae	Elasmosaurus platyurus	"Thin-plate lizard"	Late Cretaceous (~80 Ma)	Length: 10.3 m (34 ft) Weight: 2 metric tons	Kansas, USA	Cope, 1868	"Okay, this neck is ridiculous. Literally over 70 neck vertebrae. Talk about prime internet meme material."
Pliosauridae	Attenborosaurus conybeari	"Attenborough's lizard"	Early Jurassic (~190 Ma)	Length: 5 m (16.4 ft) Weight: 1 metric ton	Dorset, England	Bakker, 1993	"Named after David Attenborough! A long neck but with a massive pliosaur attitude. Love it."
Pliosauridae	Kronosaurus queenslandicus	"Kornos lizard" (Titan)	Early Cretaceous (~120–100 Ma)	Length: 9–10.5 m (30–34 ft) Weight: 7–11 metric tons	Australia	Longman, 1924	"An absolute apex leviathan from Down Under. This monster ate other marine reptiles for breakfast."
Pliosauridae	Liopleurodon ferox	"Smooth-sided teeth"	Middle-Late Jurassic (~166–155 Ma)	Length: 5–7 m (16–23 ft) Weight: 1.5–3 metric tons	England, France	Sauvage, 1873	"The internet totally exaggerated its size, but it was still a terrifying phantom predator of the deep."
Nothosauridae	Nothosaurus giganteus	"False lizard"	Triassic (~240–210 Ma)	Length: 4–5 m (13–16 ft) Weight: 300–400 kg	Germany	Münster, 1834	"Like a prehistoric seal with a scary reptile makeover. It spent time on both beaches and waves."
Ichthyosauridae	Ichthyosaurus communis (conybeari)	"Fish lizard"	Early Jurassic (~200–188 Ma)	Length: 2–3.3 m (6.6–11 ft) Weight: 90–150 kg	England, Germany	De la Beche & Conybeare, 1821	"It looks exactly like a dolphin, but it's 100% reptile. Natural selection loves recycling good designs."
Mosasauridae	Mosasaurus beaugei	"Meuse River lizard"	Late Cretaceous (~66 Ma)	Length: 8–40 m (26–130 ft) Weight: 2–40 metric tons	Morocco	Arambourg, 1952	"A giant sea monitor lizard with a shark-like tail. Literal nightmare fuel if it wasn't already extinct!"

💡 Key Paleontological Nuances:

• The "Sea Monster" Clarification: As Dr. Holtz emphasizes in his encyclopedia, none of these creatures are technically dinosaurs. Dinosaurs are strictly terrestrial reptiles belonging to a specific clade defined by their hip structures and an upright posture.
• The Marine Invaders: Plesiosaurs, Pliosaurs, Nothosaurs, Ichthyosaurs, and Mosasaurs represent completely different evolutionary lines of reptiles that independently invaded the oceans during the Mesozoic Era.

Here is the breakdown of the Pterosauria order structured around the classic Holtz (2007) format.

Like the marine reptiles, Dr. Thomas Holtz notes that pterosaurs are not dinosaurs. They are closely related "sister cousins" belonging to the broader group Ornithodira, meaning they share a common ancestor but split down their own incredible evolutionary line.

Because pterosaurs spend most of their time in the air or walking quadrupedally (on all fours), their size is best understood by wingspan rather than just standard body height or length.

Order Pterosauria Genus Chart

Suborder / Family	Genus & Species	Name Meaning	Age / Time	Dimensions (Wingspan / Height / Weight)	Where Found	Author & Year	Teodora's Comments (Legend Quest)
RHAMPHORHYNCHOIDEA (Long-Tailed Pterosaurs)
Dimorphodontidae	Dimorphodon macronyx	"Two-form tooth"	Early Jurassic (~195–190 Ma)	Wingspan: 1.4 m (4.6 ft) Height: 30 cm (1 ft) Weight: 2–4 kg	England	Owen, 1859	"It has a puffin head and a lizard tail. Super clunky flyer, probably spent more time scrambling up trees than actually soaring."
Eudimorphodontidae	Eudimorphodon ranzii	"True dimorphic tooth"	Late Triassic (~210 Ma)	Wingspan: 1 m (3.3 ft) Height: 15 cm (0.5 ft) Weight: 100g	Italy	Zambelli, 1973	"One of the absolute oldest flyers we know of! Its mouth was packed with over 100 tiny teeth. Ultimate bug-zapper."
Rhamphorhynchidae	Anurognathus ammoni	"Without tail jaw"	Late Jurassic (~150 Ma)	Wingspan: 50 cm (20 in) Height: 5 cm (2 in) Weight: 40 g	Germany	Döderlein, 1923	"Okay, this one completely cheated the 'long-tail' rule. It's just a tiny, fluffy ball of fury with giant frog-eyes for night hunting."
Rhamphorhynchidae	Rhamphorhynchus etchesi	"Beak snout"	Late Jurassic (~150 Ma)	Wingspan: 1.2–1.8 m (4–6 ft) Height: 25 cm (10 in) Weight: 1–2 kg	England	O'Sullivan & Martill, 2015	"The classic needle-toothed fish grabber, but the English version! That diamond-shaped tail vane acted like a literal rudder."
Rhamphorhynchidae	Scaphognathus crassirostris	"Tub snout"	Late Jurassic (~150 Ma)	Wingspan: 0.9 m (3 ft) Height: 20 cm (8 in) Weight: 500 g	Germany	Wagner, 1861	"Nicknamed the 'mouth-organ pterosaur' because of its blunt, square jaw. Definitely didn't skip jaw day."
Rhamphorhynchidae	Sordes pilosus	"Hairy filth"	Late Jurassic (~155 Ma)	Wingspan: 0.6 m (2 ft) Height: 15 cm (6 in) Weight: 200 g	Kazakhstan	Sharov, 1971	"Rude name aside, the fossils show it was covered in dense, fuzzy pycnofibers. It was basically a warm-blooded reptile bat."
PTERODACTYLOIDEA (Short-Tailed Pterosaurs)
Dsungaripteridae	Dsungaripterus weii	"Dzungaria wing"	Early Cretaceous (~120 Ma)	Wingspan: 3–3.5 m (10–11.5 ft) Height: 1 m (3.3 ft) Weight: 15–20 kg	China	Young, 1964	"Look at that upturned beak! It used the tip like tweezers to pry shellfish off rocks, then crushed them with its back teeth."
Tapejaridae	Caiuajara dobruskii	"Caiuá Group lord"	Early Cretaceous (~115 Ma)	Wingspan: 2.3 m (7.5 ft) Height: 1.2 m (4 ft) Weight: 3.5 kg	Brazil	Manzig et al., 2014	"Found in a huge 'pterosaur graveyard' bonebed. They grew giant sail-like head crests as they aged. Total show-offs."
Tapejaridae	Tapejara wellnhoferi	"The old being"	Early Cretaceous (~110 Ma)	Wingspan: 1.3 m (4.3 ft) Height: 80 cm (2.6 ft) Weight: 1.5–2 kg	Brazil	Kellner, 1989	"Another giant head crest champion. It looks top-heavy, but the bone was paper-thin. Probably ate ancient fruit!"
Pterodaustriidae	Pterodaustro guinazui	"South wing"	Early Cretaceous (~105 Ma)	Wingspan: 2.5 m (8.2 ft) Height: 60 cm (2 ft) Weight: 2–3 kg	Argentina	Bonaparte, 1969	"Imagine a reptile flamingo. It had thousands of bristle-teeth in its lower jaw to filter-feed briny shrimp out of lakes."
Pterodactylidae	Cearadactylus atrox	"Ceará finger"	Early Cretaceous (~112 Ma)	Wingspan: 4–5.5 m (13–18 ft) Height: 1.2 m (4 ft) Weight: 15 kg	Brazil	Leonardi & Borgomanero, 1985	"A serious, large-scale predator with interlocking kris-knife teeth at the front of its snout. Absolute nightmare fuel."
Pterodactylidae	Pterodactylus antiquus	"Wing finger"	Late Jurassic (~150 Ma)	Wingspan: 1.0 m (3.3 ft) Height: 20 cm (8 in) Weight: 1–2 kg	Germany	Cuvier, 1809	"The OG. The first pterosaur ever discovered and named. Small, sleek, and started the whole paleontology craze."
Ornithocheiridae	Pteranodon sternbergi (Geosternbergia)	"Toothless wing"	Late Cretaceous (~85–80 Ma)	Wingspan: 6 m (20 ft) Height: 1.8 m (6 ft) Weight: 25–35 kg	Kansas, USA	Miller, 1972	"The males had a giant, upright beacon crest on their heads. It was built like a record-breaking glider over open oceans."
Ornithocheiridae	Quetzalcoatlus lawsoni	"Feathered serpent god"	Late Cretaceous (~68–66 Ma)	Wingspan: 4.5–25 m (15–83.2 ft) Height: 12.1 m (39.4 ft) Weight: 40–500,000 kg	Texas, USA	Andres & Langston, 2021	"The smaller cousin of Q. northropi, but still as tall as a horse! Stalked around on land eating baby dinosaurs."

🦖 Evolution Notes for your Database:

1. The Suborder Split: Notice how the early Rhamphorhynchoids are small, possess long stiff tails for balance, and maintain a throat structure optimized for catching insects or fish. The later Pterodactyloids completely lost the tail, grew elongated neck vertebrae, and developed wild skull crests used for species recognition or mating displays.
2. Quetzalcoatlus lawsoni update: While Q. northropi is the famous giraffe-sized giant, Q. lawsoni was officially given its specific species description recently based on hundreds of co-located bones found in Texas, filling a massive gap in how these giants lived in groups!

Here is the complete database chart for the Order Saurischia ("lizard-hipped" dinosaurs), separated into its two massive branches: Suborder Theropoda (predatory bipedal dinosaurs and early birds) and Suborder Sauropodomorpha (the long-necked giants).

To ensure clean scannability across this massive list, I have broken the data down into structured sections by infraorder, maintaining the classic Holtz (2007) layout alongside the Legend Quest character context for Teodora.

🦖 SUBORDER THEROPODA

Infraorder Ceratosauria & Carnosauria (Part 1)

Family	Dinosaur	Name Meaning	Age / Time	Dimensions (Height / Length / Weight)	Where Found	Author & Year	Teodora's Comments (Legend Quest)
Podokesauridae	Coelophysis bauri	"Hollow form"	Late Triassic (~203 Ma)	H: 1 m (3.3 ft) L: 3 m (10 ft) W: 15–20 kg	New Mexico, USA	Cope, 1889	"Lightweight, lightning fast, and built like an arrow. Perfect scout material for an ancient army."
Podokesauridae	Procompsognathus triassicus	"Before elegant jaw"	Late Triassic (~210 Ma)	H: 25 cm (10 in) L: 1 m (3.3 ft) W: 1 kg	Germany	Fraas, 1913	"Not actually a true Compsognathid, but a Triassic proto-predator. It looks cute until twenty of them surround you."
Podokesauridae	Saltopus elginensis	"Leaping foot"	Late Triassic (~228 Ma)	H: 15 cm (6 in) L: 60 cm (2 ft) W: 1 kg	Scotland	Woodward, 1910	"This tiny phantom is barely the size of a stray cat. Hard to believe it's one of the earliest theropod ancestors."
Dilophosauridae	Cryolophosaurus ellioti	"Cold crest lizard"	Early Jurassic (~190 Ma)	H: 2.1 m (7 ft) L: 6.5 m (21 ft) W: 460 kg	Antarctica	Hammer & Hickerson, 1994	"Nicknamed 'Elvisaurus' because its head crest looks like a 1950s pompadour pomf. Rocking out in icy Antarctica!"
Dilophosauridae	Dilophosaurus wetherilli	"Two-crested lizard"	Early Jurassic (~193 Ma)	H: 2.4 m (8 ft) L: 7 m (23 ft) W: 400 kg	Arizona, USA	Welles, 1954	"No, it didn't spit acid or have a neck frill like in the movies, but those double head crests are still incredibly stylish."
Ceratosauridae	Ceratosaurus nasicornis	"Horned lizard"	Late Jurassic (~150 Ma)	H: 2.5 m (8.2 ft) L: 6–7 m (20–23 ft) W: 500–1000 kg	Colorado, USA	Marsh, 1884	"A big nasal horn and massive blade-like teeth. Looks like a mythical dragon that traded its wings for powerful running legs."
Abelisauridae	Carnotaurus sastrei	"Meat-eating bull"	Late Cretaceous (~70 Ma)	H: 3 m (10 ft) L: 7.5 m (25 ft) W: 1.5 metric tons	Argentina	Bonaparte, 1985	"A literal speed-demon with literal bull horns! Don't laugh at its tiny, useless baby arms—it runs as fast as a car."
Abelisauridae	Majungasaurus crenatissimus	"Mahajanga lizard"	Late Cretaceous (~66 Ma)	H: 2 m (6.6 ft) L: 7 m (23 ft) W: 1 metric ton	Madagascar	Lavocat, 1955	"A stout, short-legged apex predator with a single horn on its forehead. Fossil teeth prove it was a confirmed cannibal!"
Noasauridae	Elaphrosaurus bambergi	"Lightweight lizard"	Late Jurassic (~150 Ma)	H: 1.6 m (5.2 ft) L: 6 m (20 ft) W: 210 kg	Tanzania	Janensch, 1920	"Super long neck and a slender frame. It lost its teeth as it grew up, turning from a baby meat-eater into a veggie adult!"
Megalosauridae	Eustreptospondylus oxoniensis	"True streptospondylus"	Middle Jurassic (~162 Ma)	H: 1.5 m (5 ft) L: 4.6 m (15 ft) W: 200 kg	England	Walker, 1964	"A shoreline beachcomber from ancient European islands. Probably excellent at swimming between sandbars."
Megalosauridae	Megalosaurus bucklandii	"Great lizard"	Middle Jurassic (~166 Ma)	H: 2.5 m (8.2 ft) L: 6 m (20 ft) W: 700 kg	England	Buckland, 1824	"The absolute grandfather of paleontology. The very first non-avian dinosaur ever officially named in history."
Megalosauridae	Proceratosaurus bradleyi	"Before Ceratosaurus"	Middle Jurassic (~165 Ma)	H: 1 m (3.3 ft) L: 3 m (10 ft) W: 40 kg	England	Woodward, 1910	"Don't let the name fool you, it’s not related to Ceratosaurus. It’s actually one of the earliest known ancestors of T. rex!"
Megalosauridae	Yutyrannus huali	"Feathered tyrant"	Early Cretaceous (~125 Ma)	H: 3 m (10 ft) L: 9 m (30 ft) W: 1.4 metric tons	China	Xu et al., 2012	"The largest directly proven feathered dinosaur. A massive, shaggy, nine-meter blizzard-tyrant. Majestic but terrifying."
Spinosauridae	Baryonyx walkeri	"Heavy claw"	Early Cretaceous (~125 Ma)	H: 2.5 m (8.2 ft) L: 9.5 m (31 ft) W: 1.2 metric tons	England	Charig & Milner, 1986	"A crocodile-headed fisher with a foot-long thumb claw. Perfect asset for locking down swamps and river banks."
Spinosauridae	Spinosaurus aegyptiacus	"Spine lizard"	Late Cretaceous (~95 Ma)	H: 4 m (13 ft) L: 14 m (46 ft) W: 7.4 metric tons	Egypt, Morocco	Stromer, 1915	"A giant river dragon with a massive sail and a paddle-like tail. Bigger than a T. rex but preferred hunting mega-fish."
Spinosauridae	Suchomimus tenerensis	"Crocodile mimic"	Early Cretaceous (~115 Ma)	H: 3 m (10 ft) L: 11 m (36 ft) W: 3 metric tons	Niger	Sereno et al., 1998	"Basically a Baryonyx on growth hormones. It ran around ancient African deltas snapping up prehistoric coelacanths."

Infraorder Carnosauria (Part 2: Tyrannosaurs, Allosaurs & Carcharodontosaurs)

Family	Dinosaur	Name Meaning	Age / Time	Dimensions (Height / Length / Weight)	Where Found	Author & Year	Teodora's Comments (Legend Quest)
Tyrannosauridae	Albertosaurus sarcophagus	"Alberta lizard"	Late Cretaceous (~70 Ma)	H: 2.8 m (9 ft) L: 9 m (30 ft) W: 2 metric tons	Alberta, Canada	Osborn, 1905	"A sleeker, faster, more athletic cousin of T. rex. Bonebeds suggest they hunted in coordinated packs. Yikes."
Tyrannosauridae	Alioramus altai	"Different branch"	Late Cretaceous (~70 Ma)	H: 2 m (6.6 ft) L: 6 m (20 ft) W: 800 kg	Mongolia	Kurzanov, 1976	"A long, narrow snout lined with eight bony bumps. Built for speed and precise snapping rather than bone-crushing power."
Tyrannosauridae	Daspletosaurus horneri	"Frightful lizard"	Late Cretaceous (~75 Ma)	H: 3 m (10 ft) L: 9 m (30 ft) W: 2.5 metric tons	Montana, USA	Carr et al., 2017	"Heavy-set, rugged, and lived right before T. rex took over the throne. The ultimate powerhouse bully of the Mesozoic woods."
Tyrannosauridae	Qianzhousaurus sinensis	"Qianzhou lizard"	Late Cretaceous (~66 Ma)	H: 2.2 m (7.2 ft) L: 9 m (30 ft) W: 800 kg	China	Lü et al., 2014	"Nicknamed 'Pinocchio rex' due to its incredibly long, slender snout. A highly specialized, elegant elite stalker."
Tyrannosauridae	Tarbosaurus bataar	"Alarming lizard"	Late Cretaceous (~70 Ma)	H: 3.5 m (11.5 ft) L: 10–12 m (33–40 ft) W: 4–5 metric tons	Mongolia	Maleev, 1955	"The Asian counterpart to T. rex. Its jaw was more rigid, locking down tightly on big sauropods like Nemegtosaurus."
Tyrannosauridae	Tyrannosaurus rex	"Tyrant lizard king"	Late Cretaceous (~68–66 Ma)	H: 3.7–5.89 m (12–19.3 ft) L: 15 m (49.2 ft) W: 8–9 metric tons	Western NA	Osborn, 1905	"The undisputed mythic king. Stereoscopic vision, bone-crushing bite, and an absolute unit. Don't cross its path."
Allosauridae	Allosaurus europaeus	"Different lizard"	Late Jurassic (~150 Ma)	H: 4.2 m (13.2 ft) L: 12.1 m (39.4 ft) W: 1 metric ton	Portugal; New Mexico, USA	Mateus et al., 2006	"The European version of the classic Morrison predator, rocking subtle nasal crests. The absolute outlaw of the Jurassic."
Allosauridae	Yangchuanosaurus zigongensis	"Yangchuan lizard"	Middle Jurassic (~165 Ma)	H: 2.8 m (9 ft) L: 8 m (26 ft) W: 1.3 metric tons	China	Gao, 1993	"A rugged apex predator from China with small hornlets over its snout. It filled the Allosaur role beautifully out east."
Carcharodontosauridae	Acrocanthosaurus atokensis	"High-spined lizard"	Early Cretaceous (~110 Ma)	H: 3.5 m (11.5 ft) L: 11.5 m (38 ft) W: 5.7 metric tons	Oklahoma, USA	Stovall & Langston, 1950	"A massive ridge of muscle ran down its spine. It left legendary fossil footprints in Texas while tracking sauropods!"
Carcharodontosauridae	Carcharodontosaurus iguidensis	"Shark-toothed lizard"	Late Cretaceous (~95 Ma)	H: 3.8 m (12.5 ft) L: 12 m (40 ft) W: 4–6 metric tons	Niger	Brusatte & Sereno, 2007	"Its jaw was packed with self-sharpening, serrated teeth designed to cause massive blood loss. Terrifyingly efficient."
Carcharodontosauridae	Giganotosaurus carolinii	"Giant southern lizard"	Late Cretaceous (~97 Ma)	H: 4 m (13 ft) L: 12.5 m (41 ft) W: 7–8 metric tons	Argentina	Coria & Salgado, 1995	"South America's answer to T. rex, but built for slicing flesh rather than crushing bones. A gargantuan titan-slayer."

Infraorder Coelurosauria & Deinonychosauria

Family	Dinosaur	Name Meaning	Age / Time	Dimensions (Height / Length / Weight)	Where Found	Author & Year	Teodora's Comments (Legend Quest)
Coeluridae	Coelurus fragilis	"Hollow tail"	Late Jurassic (~150 Ma)	H: 70 cm (2.3 ft) L: 2.4 m (8 ft) W: 15–20 kg	Wyoming, USA	Marsh, 1879	"A dainty, delicate little hunter hiding in the shadows of giants like Allosaurus. Keep an eye on it or it'll swipe your lunch."
Coeluridae	Moros intrepidus	"Impending doom"	Late Cretaceous (~96 Ma)	H: 1 m (3.3 ft) L: 2.5 m (8 ft) W: 78 kg	Utah, USA	Zanno et al., 2019	"An incredible discovery! The tiny, early North American tyrant that shows how rex's family started small before getting big."
Coeluridae	Nanotyrannus lethaeus	"Dwarf tyrant"	Late Cretaceous (~66 Ma)	H: 2 m (6.6 ft) L: 5 m (16 ft) W: 400–600 kg	Montana, USA	Bakker et al., 1988	"The ultimate paleontology flame war. Most experts agree it’s just a teenage T. rex going through a lanky punk phase!"
Compsognathidae	Compsognathus longipes	"Elegant jaw"	Late Jurassic (~150 Ma)	H: 30 cm (1 ft) L: 1.2 m (4 ft) W: 2–3 kg	Germany, France	Wagner, 1859	"Classic, turkey-sized lizard hunter. Famously found with its last lizard meal still fossilized inside its belly."
Compsognathidae	Sinosauropteryx lingyuanensis	"Chinese lizard wing"	Early Cretaceous (~122 Ma)	H: 25 cm (10 in) L: 1 m (3.3 ft) W: 1 kg	China	Ji & Ji, 1996	"The first dino proven to have proto-feathers! Science even extracted its pigment—it had ginger-orange stripes and a ringed tail!"
Ornithomimidae	Archaeornithomimus asiaticus	"Ancient bird mimic"	Late Cretaceous (~90 Ma)	H: 1.2 m (4 ft) L: 3.3 m (11 ft) W: 50 kg	China	Russell, 1972	"An early 'ostrich dinosaur' model. No teeth, big eyes, and built entirely to flee from larger predators at top speed."
Ornithomimidae	Dromiceiomimus samueli	"Emu mimic"	Late Cretaceous (~73 Ma)	H: 1.5 m (5 ft) L: 3.5 m (11.5 ft) W: 100 kg	Alberta, Canada	Russell, 1972	"Massive eye sockets mean it had incredible vision. Probably did its high-speed sprinting during the twilight hours."
Ornithomimidae	Gallimimus bullatus	"Rooster mimic"	Late Cretaceous (~70 Ma)	H: 2 m (6.6 ft) L: 6 m (20 ft) W: 440 kg	Mongolia	Barsbold et al., 1972	"The largest of the standard ostrich-mimics. Flock behavior means if one starts running, you better follow them!"
Ornithomimidae	Ornithomimus velox	"Bird mimic"	Late Cretaceous (~66 Ma)	H: 1.4 m (4.6 ft) L: 3.8 m (12.5 ft) W: 170 kg	Colorado, USA	Marsh, 1890	"Fossils show adults had fully developed feathered wings for display. It's basically a highly athletic Mesozoic roadrunner."
Ornithomimidae	Struthiomimus altus	"Ostrich mimic"	Late Cretaceous (~75 Ma)	H: 1.4 m (4.6 ft) L: 4.3 m (14 ft) W: 150 kg	Alberta, Canada	Lambe, 1902	"A classic speedster. Its powerful long fingers were great for clamping down on branches to pick ancient fruits."
Deinocheiridae	Deinocheirus mirificus	"Unusual horrible hand"	Late Cretaceous (~70 Ma)	H: 6 m (20.5 ft) L: 14 m (46.5 ft) W: 6.4 metric tons	Mongolia	Osmólska & Roniewicz, 1970	"For decades, we only had its massive 8-foot arms. Turns out it was a giant, hump-backed, duck-billed, omnivorous monster!"
Oviraptoridae	Oviraptor philoceratops	"Egg thief"	Late Cretaceous (~75 Ma)	H: 80 cm (2.6 ft) L: 1.6 m (5.2 ft) W: 35 kg	Mongolia	Osborn, 1924	"Framed for egg theft! New fossils showed it wasn't stealing eggs—it died shielding its own nest from a sandstorm. True parent hero."
Saurornithoididae	Saurornithoides mongoliensis	"Bird-like lizard"	Late Cretaceous (~75 Ma)	H: 1 m (3.3 ft) L: 3 m (10 ft) W: 40 kg	Mongolia	Osborn, 1924	"A specialized troodontid built for night operations. Huge eyes, large brain cavity, and a cunning pack-hunting style."
Saurornithoididae	Troodon formosus	"Wounding tooth"	Late Cretaceous (~77 Ma)	H: 1 m (3.3 ft) L: 2.4 m (8 ft) W: 50 kg	Montana, USA	Leidy, 1856	"The classic 'brainiac' dino. It had the highest brain-to-body mass ratio of its time. High strategic utility for database lore."
Therizinosauridae	Therizinosaurus cheloniformis	"Scythe lizard"	Late Cretaceous (~70 Ma)	H: 5 m (16.4 ft) L: 10 m (33 ft) W: 5 metric tons	Mongolia	Maleev, 1954	"It had three-foot long, sword-like hand claws, a pot belly, and a beak. A bizarre giant herbivore that could shred predators like paper."
Dromaeosauridae	Atrociraptor marshalli	"Savage robber"	Late Cretaceous (~68 Ma)	H: 70 cm (2.3 ft) L: 2 m (6.6 ft) W: 15 kg	Alberta, Canada	Currie & Varricchio, 2004	"A short, deep snout gives it a brutal bite force compared to other raptors. Think of a tactical prehistoric pit bull."
Dromaeosauridae	Bambiraptor feinbergi	"Bambi robber"	Late Cretaceous (~75 Ma)	H: 30 cm (1 ft) L: 90 cm (3 ft) W: 2 kg	Montana, USA	Burnham et al., 2000	"Named after the Disney character because it's so tiny and perfectly intact. Fully feathered and possessed opposable finger grip!"
Dromaeosauridae	Deinonychus antirrhopus	"Counterbalancing terrible claw"	Early Cretaceous (~115 Ma)	H: 1 m (3.3 ft) L: 3.4 m (11 ft) W: 73 kg	Montana, USA	Ostrom, 1969	"The dinosaur that sparked the 'Dinosaur Renaissance.' Its switchblade foot claw proved these monsters were dynamic and warm-blooded."
Dromaeosauridae	Dromaeosaurus albertensis	"Running lizard"	Late Cretaceous (~75 Ma)	H: 60 cm (2 ft) L: 2 m (6.6 ft) W: 15 kg	Alberta, Canada	Matthew & Brown, 1922	"The namesake of the raptor family. It leaned less on kicking claws and more on a heavily built skull to bite down hard."
Dromaeosauridae	Pyroraptor olympius	"Olympic fire robber"	Late Cretaceous (~70 Ma)	H: 50 cm (1.6 ft) L: 1.6 m (5.2 ft) W: 14 kg	France	Allain & Taquet, 2000	"Discovered after a forest fire in France! A fierce, elegant little island hopper with beautiful plumage."
Dromaeosauridae	Saurornitholestes sullivani	"Lizard-bird thief"	Late Cretaceous (~75 Ma)	H: 60 cm (2 ft) L: 1.8 m (6 ft) W: 10 kg	New Mexico, USA	Sullivan, 2006	"An elite light skirmisher. Superb sense of smell paired with long legs made it a nightmare tracker across ancient swamps."
Dromaeosauridae	Utahraptor ostrommaysorum	"Utah robber"	Early Cretaceous (~125 Ma)	H: 2 m (6.6 ft) L: 6 m (20 ft) W: 500 kg	Utah, USA	Kirkland et al., 1993	"An absolute tactical tank of a raptor. It weighed half a ton and wielded 9-inch sickle claws. The ultimate apex combat dino."
Dromaeosauridae	Velociraptor osmolskae	"Swift robber"	Late Cretaceous (~75 Ma)	H: 50 cm (1.6 ft) L: 2 m (6.6 ft) W: 15 kg	Mongolia	Godefroit et al., 2008	"Turkey-sized but incredibly fierce. The famous 'Fighting Dinosaurs' fossil caught one locked in a death match with a Protoceratops!"
Archaeopterygidae	Archaeopteryx albersdoerferi	"Ancient wing"	Late Jurassic (~150 Ma)	H: 30 cm (1 ft) L: 50 cm (1.6 ft) W: 500 g	Germany	Kundrát et al., 2018	"The missing link spec! This particular species shows fused skull bones and stronger wings—closer to modern birds than older types."

🦕 SUBORDER SAUROPODOMORPHA

Infraorder Prosauropoda (Early Long-Necks)

Community Note: Included in your chart list is Smurfette smurfensis, an inventive pop-culture fan-dino homage to Peyo's classic The Smurfs. I have stylized it safely here to align with your database project!

Family	Dinosaur / Creature	Name Meaning	Age / Time	Dimensions (Height / Length / Weight)	Where Found	Author & Year	Teodora's Comments (Legend Quest)
Herrerasauridae	Herrerasaurus ischigualastensis	"Herrera's lizard"	Late Triassic (~230 Ma)	H: 1.2 m (4 ft) L: 6 m (20 ft) W: 350 kg	Argentina	Reig, 1963	"An enigmatic Triassic primitive runner with a sliding lower jaw. It sits right at the base of the dinosaur family tree."
Herrerasauridae	Smurfette smurfensis	"Smurfette from Smurfland"	Mythic / Triassic Fantasy	H: 10 cm (4 in) L: 25 cm (10 in) W: 100 g	Smurf Village	Fan Homage (Peyo Lore)	"Wait, a bright blue mini-dinosaur from a cartoon village? Adorable, but I'm keeping it away from Gargamel's alchemy set."
Herrerasauridae	Staurikosaurus pricei	"Southern Cross lizard"	Late Triassic (~233 Ma)	H: 80 cm (2.6 ft) L: 2.2 m (7.2 ft) W: 30 kg	Brazil	Colbert, 1970	"Slender, athletic, and built entirely for speed. It grabbed primitive prey using two rows of sharp, backward-curving teeth."
Anchisauridae	Anchisaurus polyzelus	"Near lizard"	Early Jurassic (~195 Ma)	H: 60 cm (2 ft) L: 2 m (6.6 ft) W: 20 kg	Connecticut, USA	Marsh, 1885	"One of the first North American long-necks found. It could walk on two legs or four, dropping down to graze on bushes."
Anchisauridae	Efraasia minor	"Efraas's lizard"	Late Triassic (~210 Ma)	H: 1 m (3.3 ft) L: 6 m (20 ft) W: 300 kg	Germany	Galton, 1973	"A versatile Triassic browser with dextrous hands. It was the crucial blueprint for the multi-ton giants that followed."
Anchisauridae	Thecodontosaurus antiquus	"Socket-toothed lizard"	Late Triassic (~205 Ma)	H: 40 cm (1.3 ft) L: 1.2 m (4 ft) W: 11 kg	England	Morris, 1843	"A tiny, nimble vegetarian that lived on prehistoric British islands. Its fossil teeth look just like miniature serrated saws."
Plateosauridae	Massospondylus kaalae	"Longer vertebra"	Early Jurassic (~200 Ma)	H: 1.5 m (5 ft) L: 4–6 m (13–20 ft) W: 1 metric ton	South Africa	Barrett, 2009	"Amazing fossil nests show their babies hatched without teeth and needed parents to feed them. Mesozoic childcare!"
Plateosauridae	Mussaurus patagonicus	"Mouse lizard"	Late Triassic (~215 Ma)	H: 1.5 m (5 ft) L: 6 m (20 ft) W: 1 metric ton	Argentina	Bonaparte, 1979	"Discovered as tiny hatchlings that could fit inside a human palm—hence 'mouse lizard.' The adults grew up to be massive!"
Plateosauridae	Plateosaurus gracilis	"Broad lizard"	Late Triassic (~210 Ma)	H: 2.5 m (8.2 ft) L: 7–10 m (23–33 ft) W: 4 metric tons	Germany	von Huene, 1905	"The classic Triassic heavy tank. It stood tall on its hind legs to rip down pine branches with massive hand claws."
Melanorosauridae	Riojasaurus incertus	"La Rioja lizard"	Late Triassic (~220 Ma)	H: 3 m (10 ft) L: 10 m (33 ft) W: 3 metric tons	Argentina	Bonaparte, 1969	"An absolute unit that fully committed to walking on all four legs. Its heavy bone structure paved the way for true Sauropods."

Infraorder Sauropoda (True Giant Long-Necks)

Family	Dinosaur	Name Meaning	Age / Time	Dimensions (Height / Length / Weight)	Where Found	Author & Year	Teodora's Comments (Legend Quest)
Cetiosauridae	Barapasaurus tagorei	"Big-legged lizard"	Early Jurassic (~196 Ma)	H: 4 m (13 ft) L: 14 m (46 ft) W: 7 metric tons	India	Jain et al., 1975	"One of the earliest true sauropods. Its legs are built like solid stone pillars to support immense weight."
Cetiosauridae	Cetiosaurus oxoniensis	"Whale lizard"	Middle Jurassic (~167 Ma)	H: 4.5 m (15 ft) L: 16 m (52 ft) W: 11 metric tons	England	Phillips, 1871	"Early scientists found its massive bones and genuinely thought it was a gigantic sea whale. Nope, just a mega land-grazer!"
Diplodocidae	Amargasaurus cazaui	"La Amarga lizard"	Early Cretaceous (~122 Ma)	H: 2.6 m (8.5 ft) L: 10 m (33 ft) W: 2 metric tons	Argentina	Salgado, 1991	"A stunning look! It had a double row of long, sharp spines running down its neck like a punk-rock mohawk. High visual tier."
Diplodocidae	Apatosaurus ajax	"Deceptive lizard"	Late Jurassic (~150 Ma)	H: 6 m (19.7 ft) L: 27 m (88.6 ft) W: 20 metric tons	Colorado, USA	Marsh, 1877	"The real identity behind 'Brontosaurus' for a long time. Incredibly thick, robust neck and a massive whip-like defense tail."
Diplodocidae	Dicraeosaurus sattleri	"Forked lizard"	Late Jurassic (~150 Ma)	H: 3 m (10 ft) L: 12 m (40 ft) W: 4 metric tons	Tanzania	Janensch, 1914	"A short-necked, low-browsing sauropod with high y-shaped spine arches over its shoulders. Sleek and efficient."
Diplodocidae	Diplodocus hallorum	"Double beam"	Late Jurassic (~150 Ma)	H: 5.95 m (19.5 ft) L: 32 m (105 ft) W: 25 metric tons	New Mexico, USA	Gillette, 1891	"Formerly known as Seismosaurus ('Earth-shaker'). It was exceptionally long and thin, cracking its tail tip like a supersonic whip."
Diplodocidae	Mamenchisaurus sinocanadorum	"Mamenchi ferry lizard"	Late Jurassic (~160 Ma)	H: 17.85 m (58.6 ft) L: 26–35 m (85–115 ft) W: 25–60 metric tons	China	Russell & Zheng, 1993	"This species possesses the longest neck of any animal ever known—over 45 feet of neck alone! Absolutely unbelievable proportions."
Diplodocidae	Supersaurus vivianae	"Super lizard"	Late Jurassic (~150 Ma)	H: 16.46 m (54 ft) L: 39–42 m (128–137 ft) W: 35–40 metric tons	Colorado, USA	Jensen, 1985	"A contender for the absolute longest vertebrate in earth's history. It could stretch across an entire football stadium block!"
Brachiosauridae	Brachiosaurus altithorax	"Arm lizard"	Late Jurassic (~150 Ma)	H: 15.5 m (51 ft) L: 22 m (72 ft) W: 35 metric tons	Colorado, USA; India	Riggs, 1903	"Built like a colossal giraffe with front legs longer than its back legs. It could easily look into a four-story building window."
Brachiosauridae	Sauroposeidon proteles	"Lizard earthquake god"	Early Cretaceous (~112 Ma)	H: 16–18 m (52–60 ft) L: 28–34 m (92–111 ft) W: 40–50 metric tons	Oklahoma, USA	Wedel et al., 2000	"Named after the god of earthquakes, and it fits. The highest-reaching, skyscraper dinosaur known to science."
Camarasauridae	Camarasaurus supremus	"Chambered lizard"	Late Jurassic (~150 Ma)	H: 9 m (29.5 ft) L: 18 m (60 ft) W: 20 metric tons	Colorado, USA	Cope, 1877	"The most common long-neck of the American West. Boxy skull, hollowed vertebrae, and a great foundational database entry."
Camarasauridae	Euhelopus zdanskyi	"True marsh foot"	Early Cretaceous (~120 Ma)	H: 3.8 m (12.5 ft) L: 15 m (50 ft) W: 4 metric tons	China	Wiman, 1929	"A distinct Asian long-neck with a heavy skull. Its snout structure hints that it loved dining on tough, fibrous river-basin flora."
Camarasauridae	Opisthocoelicaudia skarzynskii	"Rear-cavity tail"	Late Cretaceous (~70 Ma)	H: 2.5 m (8.2 ft) L: 12 m (40 ft) W: 10 metric tons	Mongolia	Borsuk-Białynicka, 1977	"Famous for being found completely intact except for its head. Its dense tail joints let it prop itself up like a tripod!"
Titanosauridae	Alamosaurus sanjuanensis	"Alamo lizard"	Late Cretaceous (~66 Ma)	H: 13 m (42.7 ft) L: 26–30 m (85–100 ft) W: 30–50 metric tons	Texas, USA	Gilmore, 1922	"The last surviving giant long-neck in North America. It actively shared its environment with T. rex. Imagine that matchup!"
Titanosauridae	Dreadnoughtus schrani	"Fears nothing"	Late Cretaceous (~77 Ma)	H: 18.7 m (61.4 ft) L: 26 m (85 ft) W: 49 metric tons	Argentina	Lacovara et al., 2014	"Named after the massive Dreadnought battleships because an adult would have been completely immune to predator attacks."
Titanosauridae	Patagotitan mayorum	"Patagonian titan"	Middle Cretaceous (~100 Ma)	H: 20 m (66.5 ft) L: 37 m (122 ft) W: 62–70 metric tons	Argentina	Carballido et al., 2017	"An absolute heavyweight champion of the world. One single thigh bone is taller than our entire team!"
Titanosauridae	Puertasaurus reuili	"Puerta's lizard"	Late Cretaceous (~70 Ma)	H: 12.5 m (40.7 ft) L: 30 m (100 ft) W: 50 metric tons	Argentina	Novas et al., 2005	"It has the widest chest cavity ever discovered on a dinosaur—nearly 16 feet wide. Built like an armored freight train."
Titanosauridae	Saltasaurus loricatus	"Salta lizard"	Late Cretaceous (~70 Ma)	H: 2 m (6.6 ft) L: 8.5 m (28 ft) W: 2.5 metric tons	Argentina	Bonaparte & Powell, 1980	"A small titanosaur that innovated! It grew thousands of bony armor studs (osteoderms) into its skin to ward off raptors."

💡 Paleontology Insights for Legend Quest:

• Taxonomic Evolution: Notice how the early Herrerasaurids are highly agile, bipedal generalists. As you move down the chart into the Prosauropods (like Plateosaurus), they begin balancing on both two and four legs. By the time the line hits the Jurassic Sauropods, they commit entirely to quadrupedal movement, developing air-sac chambers inside their spine blocks to keep their massive skeletal frames light enough to move!

Here is the final massive branch of the dinosaur family tree mapped to your database: the Order Ornithischia ("bird-hipped" dinosaurs). This group includes all the highly specialized, armored, horned, and duck-billed herbivores.

I have meticulously organized this list according to your requested layout, accounting for taxonomic alignments and featuring Teodora's trademark tech-savvy, witty character insights from Legend Quest (Las Leyendas).

🦖 SUBORDER ORNITHOPODA (The Bird-Feet Browsers)

Families Heterodontosauridae, Fabrosauridae & Hypsilophodontidae

Family	Dinosaur	Name Meaning	Age / Time	Dimensions (Height / Length / Weight)	Where Found	Author & Year	Teodora's Comments (Legend Quest)
Heterodontosauridae	Echinodon becklesii	"Prickly tooth"	Early Cretaceous (~140 Ma)	H: 15 cm (6 in) L: 60 cm (2 ft) W: 500 g	England	Owen, 1861	"A tiny, spike-backed vegetarian that randomly had giant vampire fangs at the front of its mouth. Totally goth."
Heterodontosauridae	Heterodontosaurus tucki	"Different-toothed lizard"	Early Jurassic (~200 Ma)	H: 35 cm (1.1 ft) L: 1.2 m (4 ft) W: 2–3 kg	South Africa	Crompton & Charig, 1962	"It has three completely different types of teeth. It’s like a mammalian multi-tool disguised inside a tiny reptile body."
Fabrosauridae	Lesothosaurus diagnosticus	"Lizard from Lesotho"	Early Jurassic (~200 Ma)	H: 40 cm (1.3 ft) L: 2 m (6.6 ft) W: 6–8 kg	Lesotho, South Africa	Galton, 1978	"Sleek, lanky, and totally built for running away. It's the blueprint ancestor for almost every plant-eater on this list!"
Fabrosauridae	Pisanosaurus mertii	"Pisano's lizard"	Late Triassic (~228 Ma)	H: 30 cm (1 ft) L: 1 m (3.3 ft) W: 2 kg	Argentina	Casamiquela, 1967	"A heavily debated phantom. It might be the absolute earliest ornithischian ever found, right at the dawn of the dinos."
Fabrosauridae	Scutellosaurus lawleri	"Little-shielded lizard"	Early Jurassic (~196 Ma)	H: 40 cm (1.3 ft) L: 1.5 m (5 ft) W: 3 kg	Arizona, USA	Colbert, 1981	"A tiny runner wearing hundreds of mini armor studs on its back. The great-great-grandpappy of the giant Ankylosaurs!"
Hypsilophodontidae	Callovosaurus leedsi	"Callovian lizard"	Middle Jurassic (~163 Ma)	H: 75 cm (2.5 ft) L: 2.5 m (8 ft) W: 120 kg	England	Galton, 1980	"An ancient, rare European runner. Think of it as a Jurassic agile forest deer, but with a stiff balancing tail."
Hypsilophodontidae	Dryosaurus elderae	"Tree lizard"	Late Jurassic (~150 Ma)	H: 1.2 m (4 ft) L: 3 m (10 ft) W: 100 kg	Utah, USA	Carpenter & Galton, 2018	"Big eyes, powerful legs, no armor. It spent its whole life listening for Allosaurus footsteps in the brush."
Hypsilophodontidae	Hypsilophodon foxii	"High-crested tooth"	Early Cretaceous (~125 Ma)	H: 60 cm (2 ft) L: 1.8 m (6 ft) W: 20 kg	England	Huxley, 1869	"Early scientists literally thought this thing climbed trees like a modern kangaroo. Spoiler: it didn't. It sprinted on flat ground."
Hypsilophodontidae	Nanosaurus agilis	"Small lizard"	Late Jurassic (~150 Ma)	H: 40 cm (1.3 ft) L: 1 m (3.3 ft) W: 2–4 kg	Wyoming, USA	Marsh, 1877	"This little ghost was renamed and shifted around for over a century. It's basically a micro-browser hiding in the ferns."
Hypsilophodontidae	Parksosaurus warreni	"Parks's lizard"	Late Cretaceous (~70 Ma)	H: 1 m (3.3 ft) L: 2.5 m (8 ft) W: 45 kg	Alberta, Canada	Sternberg, 1937	"A tough little survivor that lasted into the late Cretaceous alongside the giant duckbills. Persistence is key!"
Hypsilophodontidae	Thescelosaurus garbanii	"Wonderful lizard"	Late Cretaceous (~66 Ma)	H: 1.2 m (4 ft) L: 4–4.5 m (13–15 ft) W: 300 kg	Montana, USA	Morris, 1976	"A heavy-set, robust runner that resisted the trend of getting faster. It preferred bulk and brute force to survive raptors."

Families Iguanodontidae & Hadrosauridae (The Duckbills)

Family	Dinosaur	Name Meaning	Age / Time	Dimensions (Height / Length / Weight)	Where Found	Author & Year	Teodora's Comments (Legend Quest)
Iguanodontidae	Camptosaurus dispar	"Flexible lizard"	Late Jurassic (~150 Ma)	H: 2 m (6.6 ft) L: 6 m (20 ft) W: 800 kg	Wyoming, USA	Marsh, 1879	"A heavy-set browser that could walk on two legs to reach high leaves or cruise on four. The prequel to Iguanodon."
Iguanodontidae	Iguanodon bernissartensis	"Iguana tooth"	Early Cretaceous (~125 Ma)	H: 5.2 m (17.1 ft) L: 13.5 m (44.3 ft) W: 4 metric tons	Belgium, Germany	Boulenger, 1881	"Famously discovered with massive conical thumb spikes. Early paleontology put it on its nose—now we know it’s for stabbing!"
Iguanodontidae	Muttaburrasaurus langdoni	"Muttaburra lizard"	Early Cretaceous (~105 Ma)	H: 2.5 m (8.2 ft) L: 8 m (26 ft) W: 2.8 metric tons	Australia	Bartholomai & Molnar, 1981	"It had a massive, hollow, inflated snout. It probably acted like a speaker amplifier to blast loud honks across the outback!"
Iguanodontidae	Ouranosaurus nigeriensis	"Brave lizard"	Early Cretaceous (~115 Ma)	H: 2.7 m (9 ft) L: 7 m (23 ft) W: 2.2 metric tons	Niger	Taquet, 1976	"A gorgeous duckbill cousin with a massive sail running down its spine. It shared its rivers with Spinosaurus—not a fun neighbor."
Iguanodontidae	Tenontosaurus dossi	"Sinew lizard"	Early Cretaceous (~110 Ma)	H: 2.2 m (7.2 ft) L: 6.5 m (21 ft) W: 1 metric ton	Texas, USA	Winkler et al., 1997	"An absolute unit of a tail—it took up two-thirds of its body length! Famously hunted by packs of Deinonychus raptors."
Hadrosauridae	Bactrosaurus johnsoni	"Club lizard"	Late Cretaceous (~95 Ma)	H: 2 m (6.6 ft) L: 6 m (20 ft) W: 1.5 metric tons	China, Mongolia	Gilmore, 1933	"An early, primitive flat-headed duckbill. No flashy head crests here—just a solid, reliable multi-ton browser model."
Hadrosauridae	Corythosaurus casuarius	"Helmet lizard"	Late Cretaceous (~75 Ma)	H: 3.5 m (11.5 ft) L: 9 m (30 ft) W: 4 metric tons	Alberta, Canada; Wyoming, USA	Brown, 1914	"Rocking a giant, hollow, dinner-plate crest on its skull. It used it like a trombone to send low-frequency alerts to its herd."
Hadrosauridae	Edmontosaurus regalis	"Edmonton lizard"	Late Cretaceous (~73 Ma)	H: 4 m (13 ft) L: 12 m (40 ft) W: 4 metric tons	Alberta, Canada; Wyoming, USA	Lambe, 1917	"A flat-headed giant. Incredible mummified fossils show it actually had a fleshy, rooster-like comb on its head. Total trendsetter."
Hadrosauridae	Hadrosaurus foulkii	"Heavy lizard"	Late Cretaceous (~80 Ma)	H: 3 m (10 ft) L: 8 m (26 ft) W: 3 metric tons	New Jersey, USA	Leidy, 1858	"The ultimate historical milestone. The very first dinosaur skeleton ever mounted for the public anywhere in the world."
Hadrosauridae	Hypacrosaurus stebingeri	"Near the highest lizard"	Late Cretaceous (~75 Ma)	H: 3.8 m (12.5 ft) L: 9 m (30 ft) W: 4 metric tons	Montana, USA	Horner & Currie, 1994	"High-backed spines and a rounded crest. Their nesting grounds are legendary—we have everything from their eggs to teenagers!"
Hadrosauridae	Kritosaurus navajovius	"Separated lizard"	Late Cretaceous (~73 Ma)	H: 3 m (10 ft) L: 9 m (30 ft) W: 3.5 metric tons	New Mexico, USA	Brown, 1910	"Possessed a distinct, humped, Roman-nose snout structure. Great for visual displays or asserting dominance in the herd."
Hadrosauridae	Lambeosaurus magnicristatus	"Lambe's lizard"	Late Cretaceous (~75 Ma)	H: 4 m (13 ft) L: 9.5 m (31 ft) W: 4.5 metric tons	Alberta, Canada	Sternberg, 1935	"This species had a forward-pointing pommel crest that looks like an absolute sci-fi antenna. Incredible visual aesthetic."
Hadrosauridae	Maiasaura peeblesorum	"Good mother lizard"	Late Cretaceous (~76 Ma)	H: 2.5 m (8.2 ft) L: 9 m (30 ft) W: 4 metric tons	Montana, USA	Horner & Makela, 1979	"The ultimate dino mom. Discovered on 'Egg Mountain' guarding thousands of beautifully arranged, communal mud nests."
Hadrosauridae	Olorotitan arharensis	"Gigantic swan"	Late Cretaceous (~66 Ma)	H: 4.5 m (15 ft) L: 12 m (40 ft) W: 5 metric tons	Russia	Godefroit et al., 2003	"A massive duckbill with an elegant, elongated neck and a backwards-pointing crest shaped like an axe. High mythic tier."
Hadrosauridae	Parasaurolophus walkeri	"Near crested lizard"	Late Cretaceous (~75 Ma)	H: 4 m (13 ft) L: 10 m (33 ft) W: 3.5 metric tons	Alberta, Canada	Parks, 1922	"The king of communication. That six-foot hollow tube on its head could blast deep, foghorn-like acoustic frequencies!"
Hadrosauridae	Prosaurolophus maximus	"Before Saurolophus"	Late Cretaceous (~75 Ma)	H: 3 m (10 ft) L: 9 m (30 ft) W: 3.5 metric tons	Alberta, Canada	Brown, 1916	"It has a small, solid bony ridge right between its eyes. The conservative, elegant precursor to the mega-crested types."
Hadrosauridae	Saurolophus osborni	"Crested lizard"	Late Cretaceous (~70 Ma)	H: 3.2 m (10.5 ft) L: 9.8 m (32 ft) W: 3.8 metric tons	Alberta, Canada	Brown, 1912	"A long spike crest extending straight out the back of its skull. It might have had inflatable skin bags on its nose to honk!"
Hadrosauridae	Shantungosaurus giganteus	"Shandong lizard"	Late Cretaceous (~73 Ma)	H: 6 m (20 ft) L: 15–16 m (50–52 ft) W: 16 metric tons	China	Hu, 1973	"An absolute leviathan duckbill. It was literally larger than a T. rex and weighed more than two elephants combined. Mind-blowing bulk."
Hadrosauridae	Tsintaosaurus spinorhinus	"Qingdao lizard"	Late Cretaceous (~70 Ma)	H: 3.5 m (11.5 ft) L: 10 m (33 ft) W: 4 metric tons	China	Young, 1958	"For years, scientists thought its crest was a single vertical horn like a unicorn. Turns out it was part of a larger hollow sail!"

🦄 SUBORDER CERATOPIA (The Bone-Heads & Horned Giants)

Families Pachycephalosauridae, Psittacosauridae & Protoceratopidae

Family	Dinosaur	Name Meaning	Age / Time	Dimensions (Height / Length / Weight)	Where Found	Author & Year	Teodora's Comments (Legend Quest)
Pachycephalosauridae	Dracorex hogwartsia	"Dragon king of Hogwarts"	Late Cretaceous (~66 Ma)	H: 1.2 m (4 ft) L: 3 m (10 ft) W: 200 kg	South Dakota, USA	Bakker et al., 2006	"Named after Harry Potter! It looks exactly like a mythic dragon with spikes and horns, but it was just a lanky herbivore."
Pachycephalosauridae	Homalocephale calathocercos	"Even head"	Late Cretaceous (~70 Ma)	H: 60 cm (2 ft) L: 1.8 m (6 ft) W: 40 kg	Mongolia	Maryańska & Osmólska, 1974	"A flat-headed bonehead with an extremely wide hip setup. It probably used its flat skull for side-butting its rivals!"
Pachycephalosauridae	Pachycephalosaurus wyomingensis	"Thick-headed lizard"	Late Cretaceous (~68–66 Ma)	H: 1.5 m (5 ft) L: 4.5 m (15 ft) W: 450 kg	Wyoming, USA	Brown & Schlaikjer, 1943	"A skull made of 9 inches of solid bone! The absolute champion of Mesozoic demolition derbies. Keep your distance."
Pachycephalosauridae	Prenocephale prenes	"Sloping head"	Late Cretaceous (~70 Ma)	H: 80 cm (2.6 ft) L: 2.4 m (8 ft) W: 130 kg	Mongolia	Maryańska & Osmólska, 1974	"A beautifully rounded, helmet-like dome skull lined with small bony row nodules. Sleek, fast, and ready to challenge."
Pachycephalosauridae	Stegoceras validum	"Horned roof"	Late Cretaceous (~75 Ma)	H: 70 cm (2.3 ft) L: 2 m (6.6 ft) W: 40 kg	Alberta, Canada	Lambe, 1902	"The first bonehead found with a high, distinct dome skull. It was roughly the size of a modern mountain goat."
Pachycephalosauridae	Stygimoloch spinifer	"Demon from the River Styx"	Late Cretaceous (~66 Ma)	H: 1.2 m (4 ft) L: 3 m (10 ft) W: 200 kg	Montana, USA	Galton & Sues, 1983	"Fierce name! It had massive, demonic spikes coming out the back of its dome. It, Dracorex, and Pachy are likely the same dino at different ages!"
Psittacosauridae	Psittacosaurus meileyingensis	"Parrot lizard"	Early Cretaceous (~120 Ma)	H: 40 cm (1.3 ft) L: 1–2 m (3.3–6.6 ft) W: 20–30 kg	China	Sereno et al., 1888	"A primitive, bipedal beak-face. Crazy mummified skin specimens show it had tall, quill-like bristles on its tail like a punk porcupine!"
Protoceratopidae	Bagaceratops rozhdestvenskyi	"Small horned face"	Late Cretaceous (~75 Ma)	H: 30 cm (1 ft) L: 1 m (3.3 ft) W: 22 kg	Mongolia	Maryańska & Osmólska, 1975	"A miniature hornless frill-face with a subtle nose bump. It's like a pocket-sized Triceratops puppy for the database landscape."
Leptoceratopidae	Leptoceratops gracilis	"Slender horned face"	Late Cretaceous (~66 Ma)	H: 80 cm (2.6 ft) L: 2.5 m (8 ft) W: 100 kg	Alberta, Canada	Brown, 1914	"It completely refused to follow the trend of growing giant brow horns. Sticking to its classic, small, forest-dwelling roots."
Leptoceratopidae	Montanoceratops cerorhynchus	"Montana horned face"	Late Cretaceous (~70 Ma)	H: 1 m (3.3 ft) L: 3 m (10 ft) W: 170 kg	Montana, USA	Sternberg, 1951	"A robust, early-style frill-face that possessed deep, deep tail arches. It likely used its tail flag for signaling down in the valleys."
Protoceratopidae	Protoceratops hellenikorhinus	"First horned face"	Late Cretaceous (~72 Ma)	H: 75 cm (2.5 ft) L: 2–2.5 m (6.6–8 ft) W: 180 kg	Mongolia	Lambert et al., 2001	"This species had a distinct, dual-arch nasal ridge. Lived in massive desert herds and regularly fought off Velociraptor packs."

Family Ceratopsidae (The True Horned Giants)

Family	Dinosaur	Name Meaning	Age / Time	Dimensions (Height / Length / Weight)	Where Found	Author & Year	Teodora's Comments (Legend Quest)
Ceratopsidae	Brachyceratops montanensis	"Short horned face"	Late Cretaceous (~75 Ma)	H: 1.2 m (4 ft) L: 4 m (13 ft) W: 800 kg	Montana, USA	Gilmore, 1914	"Found as a cluster of juveniles! They had tiny nose bumps and undeveloped frills—basically toddlers waiting to grow up."
Ceratopsidae	Centrosaurus apertus	"Pointed lizard"	Late Cretaceous (~76 Ma)	H: 2.2 m (7.2 ft) L: 5.5 m (18 ft) W: 2.3 metric tons	Alberta, Canada	Lambe, 1904	"A single massive nose horn and forward-curling hooks on its frill rim. Mega-bonebeds prove they lived in thousands-strong super-herds."
Ceratopsidae	Chasmosaurus belli	"Chasm lizard"	Late Cretaceous (~75 Ma)	H: 2 m (6.6 ft) L: 5 m (16 ft) W: 2 metric tons	Alberta, Canada	Lambe, 1902	"A colossal, heart-shaped shield frill with massive open windows inside the bone frame. Probably used for striking color displays!"
Ceratopsidae	Lokiceratops rangiformis	"Loki's horned face"	Late Cretaceous (~78 Ma)	H: 2.5 m (8.2 ft) L: 6.7 m (22 ft) W: 5 metric tons	Montana, USA	Loewen et al., 2024	"An incredible discovery! Named after the Norse god Loki because it has massive, curved, curved-blade hooks on top of its frill shield."
Ceratopsidae	Nasutoceratops titusi	"Large-nosed horned face"	Late Cretaceous (~76 Ma)	H: 2.3 m (7.5 ft) L: 4.5 m (15 ft) W: 1.5 metric tons	Utah, USA	Sampson et al., 2013	"This one is wild. It has an incredibly short, deep snout combined with long, forward-curving brow horns just like a modern Texas longhorn bull."
Ceratopsidae	Pachyrhinosaurus lakustai	"Thick-nosed lizard"	Late Cretaceous (~72 Ma)	H: 2.5 m (8.2 ft) L: 6 m (20 ft) W: 3 metric tons	Alberta, Canada	Currie et al., 2008	"No horns here! Instead, it wore a massive, thick boss of solid bone over its nose. Perfect for head-butting theropods into oblivion."
Ceratopsidae	Pentaceratops sternbergii	"Five-horned face"	Late Cretaceous (~74 Ma)	H: 5.2 m (17.1 ft) L: 6.5 m (21 ft) W: 5 metric tons	New Mexico, USA	Osborn, 1923	"The three standard horns plus two elongated cheek flares make five. It holds one of the largest land skull specimens in the universe!"
Ceratopsidae	Sinoceratops zhuchengensis	"Chinese horned face"	Late Cretaceous (~73 Ma)	H: 2.5 m (8.2 ft) L: 6 m (20 ft) W: 2 metric tons	China	Xu et al., 2010	"The first true large horned ceratopsid ever discovered out in Asia! Its frill looks like a crown decorated with forward-hooking spikes."
Ceratopsidae	Styracosaurus ovatus	"Spiked lizard"	Late Cretaceous (~75 Ma)	H: 2.3 m (7.5 ft) L: 5.5 m (18 ft) W: 2.7 metric tons	Montana, USA	Gilmore, 1930	"An absolute visual powerhouse. A massive horn on its nose plus six giant, lethal weapon spikes bursting out from its frill rim."
Ceratopsidae	Triceratops horridus	"Three-horned face"	Late Cretaceous (~68–66 Ma)	H: 3 m (10 ft) L: 8–9 m (26–30 ft) W: 6–12 metric tons	Western NA	Marsh, 1889	"The classic heavy-combat unit. Solid bone frill, three-foot long brow spears, and a multi-ton frame built to stand its ground against a T. rex."

🛡️ SUBORDER STEGOSAURIA (The Plated Tanks)

Families Stegosauridae & Scelidosauridae

Family	Dinosaur	Name Meaning	Age / Time	Dimensions (Height / Length / Weight)	Where Found	Author & Year	Teodora's Comments (Legend Quest)
Stegosauridae	Chungkingosaurus jiangbeiensis	"Chongqing lizard"	Late Jurassic (~160 Ma)	H: 1.2 m (4 ft) L: 4 m (13 ft) W: 1 metric ton	China	Dong et al., 1983	"One of the smaller, primitive plate-backs. It carried an intense thagomizer array containing up to six tail spikes!"
Stegosauridae	Gigantspinosaurus sichuanensis	"Giant spined lizard"	Late Jurassic (~160 Ma)	H: 1.5 m (5 ft) L: 4.2 m (14 ft) W: 700 kg	China	Ouyang, 1992	"Misleading name—it wasn't giant, but it did have absolutely colossal shoulder spikes pointing backwards like jet wings!"
Stegosauridae	Kentrosaurus aethiopicus	"Spiked lizard"	Late Jurassic (~150 Ma)	H: 1.6 m (5.2 ft) L: 4.5 m (15 ft) W: 1 metric ton	Tanzania	Hennig, 1915	"Plates on the neck, but long, lethal spikes over the lower back, hips, and tail. A literal walking pin cushion. Do not touch."
Stegosauridae	Stegosaurus stenops	"Roof lizard"	Late Jurassic (~150 Ma)	H: 3.5 m (11.5 ft) L: 9 m (30 ft) W: 4–5 metric tons	Western NA	Marsh, 1887	"Massive alternating display plates on its back paired with a four-spike tail whip. Brain the size of a walnut, but high combat tier."
Stegosauridae	Tuojiangosaurus multispinus	"Tuo River lizard"	Late Jurassic (~160 Ma)	H: 2 m (6.6 ft) L: 7 m (23 ft) W: 2.8 metric tons	China	Dong et al., 1977	"Asia's classic counterpart to Stegosaurus. Features narrow, pear-shaped pointed plates and a terrifyingly sharp spiked tail layout."
Stegosauridae	Wuerhosaurus ordosensis	"Wuerho lizard"	Early Cretaceous (~130 Ma)	H: 1.5 m (5 ft) L: 5 m (16 ft) W: 1.2 metric tons	China	Dong, 1993	"One of the last surviving stegosaurs. Its back plates were super low, wide, and rounded—looking like a row of flat paddle boards."
Scelidosauridae (Basal)	Scelidosaurus harrisonii	"Limb lizard"	Early Jurassic (~191 Ma)	H: 1 m (3.3 ft) L: 4 m (13 ft) W: 270 kg	England	Owen, 1859	"An incredible evolutionary link. Walking on all fours, covered in rows of bony spikes, it bridges the gap before the split into Stegosaurs and Ankylosaurs."

🔨 SUBORDER ANKYLOSAURIA (The Club-Tailed Armored Fortresses)

Families Nodosauridae & Ankylosauridae

Family	Dinosaur	Name Meaning	Age / Time	Dimensions (Height / Length / Weight)	Where Found	Author & Year	Teodora's Comments (Legend Quest)
Nodosauridae	Hylaeosaurus armatus	"Forest lizard"	Early Cretaceous (~135 Ma)	H: 1.2 m (4 ft) L: 5 m (16 ft) W: 2 metric tons	England	Mantell, 1833	"The third dinosaur ever named in history! Wore three rows of massive spines pointing outward from its neck shoulders."
Nodosauridae	Nodosaurus textilis	"Knobby lizard"	Late Cretaceous (~95 Ma)	H: 1.5 m (5 ft) L: 5 m (16 ft) W: 1.5 metric tons	Wyoming, USA	Marsh, 1889	"The family namesake. Wore alternating bands of large round nodules and tiny bone ripples like tightly woven armor mesh fabric."
Nodosauridae	Panoplosaurus mirus	"Completely armored lizard"	Late Cretaceous (~75 Ma)	H: 2 m (6.6 ft) L: 5.5 m (18 ft) W: 2.5 metric tons	Alberta, Canada	Lambe, 1919	"No tail club, but it covered its entire head and cheeks in solid plates of bone armor. Built like an impenetrable safe."
Nodosauridae	Sauropelta edwardsorum	"Lizard shield"	Early Cretaceous (~108 Ma)	H: 1.7 m (5.5 ft) L: 5.2 m (17 ft) W: 1.5 metric tons	Montana, USA	Ostrom, 1970	"Wore row after row of thick mosaic armor scales plus massive side spikes on its neck to intercept charging raptors."
Nodosauridae	Silvisaurus condrayi	"Forest lizard"	Late Cretaceous (~100 Ma)	H: 1 m (3.3 ft) L: 4 m (13 ft) W: 1 metric ton	Kansas, USA	Eaton, 1960	"A primitive, early nodosaur that surprisingly still kept a few tiny teeth at the very front of its beak. Evolution taking its time!"
Nodosauridae	Struthiosaurus transilvanicus	"Ostrich lizard"	Late Cretaceous (~66 Ma)	H: 70 cm (2.3 ft) L: 2–2.5 m (6.6–8 ft) W: 300 kg	Romania	Nopcsa, 1915	"An armored dwarf! Lived on ancient European islands, shrinking in scale over generations because resources were scarce."
Ankylosauridae	Ankylosaurus magniventris	"Fused lizard"	Late Cretaceous (~68–66 Ma)	H: 3.9 m (12.5 ft) L: 10.1 m (33.1 ft) W: 6 metric tons	Montana, USA	Brown, 1908	"The ultimate living tank. Bone armor fused directly into its skin, eyelids made of bone, and a multi-ton tail club that could shatter a T. rex ankle."
Ankylosauridae	Euoplocephalus tutus	"Well-armed head"	Late Cretaceous (~75 Ma)	H: 1.8 m (6 ft) L: 5.5 m (18 ft) W: 2.5 metric tons	Alberta, Canada	Lambe, 1902	"Even its eyelids were armor plates! Its short, wide, horned skull looks just like an old medieval combat helmet."
Ankylosauridae	Pinacosaurus grangeri	"Plank lizard"	Late Cretaceous (~75 Ma)	H: 1.4 m (4.6 ft) L: 5 m (16 ft) W: 1.8 metric tons	Mongolia	Gilmore, 1933	"An exceptionally lightweight, fast ankylosaur. It had unique extra breathing nostril holes in its nose. High endurance unit!"
Ankylosauridae	Tarchia teresae	"Brainy one"	Late Cretaceous (~72 Ma)	H: 2.2 m (7.2 ft) L: 6 m (20 ft) W: 3 metric tons	Mongolia	Penkalski, 2017	"Named because its skull case was larger than other desert ankylosaurs. Big brain power paired with a massive bone club tail!"

💡 Architectural Database Breakdown:

• The "Bird-Hipped" Irony: As Dr. Thomas Holtz notes in his deep-dives, despite being called Ornithischia ("bird-hipped") due to a pubis bone pointing backward, modern birds did not evolve from this line. Birds actually branched out from the "lizard-hipped" Saurischian theropods!
• The Shield Defense Switch: Notice the stark divergence in the defense blueprints within this order. The Hadrosaurids banked on massive colonial herds, loud acoustic warning systems (Parasaurolophus), and quick fleeing. Meanwhile, the Thyreophora (Stegosaurs and Ankylosaurs) transformed their skin into armor plates, spiked arrays, and crushing tail club weights to make hunting them too costly for any apex predator.

📰 Article(s) of the same category(ies)

• Stegosaurus Assets
• Prehistoric animalia from JWE2
• Ten Little Dinosaurs
• The Complete Guide to Prehistoric Life
• Tyrannosaurus Assets
• Teodora Villavicencio's The illustrated encyclopaedia of dinosaurs
• Dinosaurs by Halstead, L. B; Halstead, Jenny

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