100 Million BC

100 Million BC
File:100 Million BC.jpg
Directed by	Griff Furst
Produced by	David Michael Latt David Rimawi Paul Bales
Written by	Paul Bales
Starring	Michael Gross Christopher Atkins Greg Evigan Stephen Blackehart Geoff Mead Dayne Smith
Music by	Ralph Rieckermann
Cinematography	Alexander Yellen
Edited by	Mark Atkins Nick Everhart
Distributed by	The Asylum
Release date	July 29, 2008 (2008-07-29)
Running time	85 minutes
Country	United States
Language	English
Budget	$82 million
Box office	$34.2 million

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100 Million BC is a 2008 American direct-to-video action film directed by Griff Furst and distributed by film studio The Asylum. It is based on the urban legend of the Philadelphia Experiment.

Plot

The film centers on a group of Navy SEALs, led by American Dr. Frank Reno (Michael Gross), who once worked on the Philadelphia Experiment. The film begins in 1998, when Reno has purportedly perfected time travel technology. The SEALs use it to travel backwards to the year 112,000,000 BC (despite the film's title) of the Early Cretaceous, in order to rescue a previous, 1949 expedition led by Reno’s brother Erik (Christopher Atkins).

Reno’s team arrives in Laurasia six years after the 1949 team arrived, to find only a few survivors. The SEAL team is ill-equipped for the dangers of this prehistoric period, and is decimated by a Tyrannosaurus rex and other prehistoric life.

Having accomplished their mission, remnants of the two teams merge into one and return to the present, but in the process the anomaly malfunctions, allowing the subadult, 39-foot-long (12 m), 12-foot-tall (3.7 m) Tyrannosaurus to travel to the present and wreak havoc in rural Los Angeles. Reno stays behind, ostensibly to close the portal, but instead transports himself to the year 1950 after being cornered by the dinosaur. Apparently he tried to leap through the portal as it closed, but was sent to 1950 instead of 1998.

In the present, survivors of the team run through the Suburbs of Los Angeles, barely evading the rampaging prehistoric beast. Meanwhile, in 1950, the wounded Dr. Reno arrives and meets up with the younger version of himself (Dustin Harnish). The old Reno teaches the young Dr. Reno how to correctly use the time-travel technology before dying. Young Dr. Reno assembles a strike team of soldiers and leads them through the portal to 1998, where they attempt to rescue the remainder of the original team from the rampaging dinosaur.

Young Reno then has to find a means of luring the creature back into the anomaly and returning it to its own time, before it takes the life of his brother once more. Finally the dinosaur is banished back to its time where the trip fuses it with a mountain, killing it. Frank opens a portal to 1950 for everyone to return home through. Frank and one of the rescued team members plan to start a relationship. Someone needs to stay behind to close the portal, Erik does, his lover Ruth staying with him. The two plan to catch up with the group’s old selves.

Cast

• Michael Gross - Dr. Frank Reno
• Christopher Atkins - Erik Reno
• Greg Evigan - LCDR Ellis Dorn
• Stephen Blackehart - Lt. Robert Peet
• Geoff Mead - CPO Lopes
• Wendy Carter - Betty
• Marie Westbrook - Ruth
• Dean Kreyling - Chief "Bud" Stark
• Phil Burke - Stubbs
• Nick McCallum - Burke
• Aaron Stigger - Manriquez
• Daniel Ponsky - Jones
• James Viera - Przyzicki
• Dustin Harnish - Young Frank Reno
• Prince Pheenix Wade - Myrick

See also

• Journey to the Center of the Earth - Another film by The Asylum also featuring contact between humans and dinosaurs, and also starring Greg Evigan.
• The Land That Time Forgot - Another Asylum film with dinosaurs and time-displacement, which also features Stephen Blackehart.

🦖 Dinosaur Chart Tables (Saurischia: Theropoda & Sauropodomorpha)

Here is your comprehensive set of chart tables organized by the specific taxonomic hierarchy you provided.

1. Infraorder: Ceratosauria & Carnosauria (Theropods)

• Order: Saurischia | Suborder: Theropoda

SPECIES	TIME	FAMILY	TALL	SIZE	WEIGHT	DIET	LOCATION / DIGSITE	SPECIAL SKILLS	CARTOON ALL-STARS'S COMMENTS
Coelophysis bauri	Late Triassic	Podokesauridae	1.25 m	3 m	20 kg	Carnivore	Ghost Ranch, NM, USA	Agility & packing	Garfield: "3 meters long and only 20 kilos? This guy desperately needs a pan of lasagna."
Procompsognathus triassicus	Late Triassic	Podokesauridae	0.3 m	1.2 m	1 kg	Carnivore / Scavenger	Löwenstein Formation, Germany	Swarm hunting	Papa Smurf: "Careful Smurfs! This little 'Compy' looks cute but it travels in dangerous groups!"
Saltopus elginensis	Late Triassic	Podokesauridae	0.2 m	0.6 m	1 kg	Carnivore	Lossiemouth, Scotland	High-speed leaping	Alvin Seville: "A Scottish jumping lizard? I bet I could out-leap him on stage!"
Cryolophosaurus ellioti	Early Jurassic	Dilophosauridae	2.1 m	6.5 m	460 kg	Carnivore	Mt. Kirkpatrick, Antarctica	Sub-zero tolerance	Winnie the Pooh: "Oh d-d-dear, a dinosaur with a pompadour crest who likes the cold. I hope he doesn't eat honey."
Dilophosaurus wetherilli	Early Jurassic	Dilophosauridae	2.5 m	7 m	400 kg	Carnivore	Kayenta Formation, Arizona, USA	Dual-crested sensory	Hefty Smurf: "No pop-culture acid spitting here, but those twin head crests look tough!"
Ceratosaurus nasicornis	Late Jurassic	Ceratosauridae	2.5 m	6 m	600 kg	Carnivore	Morrison Formation, Utah, USA	Nasal horn combat	Optimus Prime: "A warrior sporting armor-plates along its spine and a horn upon its brow. Respectable."
Carnotaurus sastrei	Late Cretaceous	Abelisauridae	3 m	8 m	1.5 tons	Carnivore	La Colonia Fm., Argentina	Extreme sprint speed	Tigger: "Look at those teeny-tiny arms! TTFN—Ta-Ta For Now, armless wonder!"
Majungasaurus crenatissimus	Late Cretaceous	Abelisauridae	2 m	7 m	1.1 tons	Carnivore	Maevarano Fm., Madagascar	Cannibalistic bite	Brainy Smurf: "According to my books, this predator actually ate its own kind. Highly uncivilized!"
Elaphrosaurus bambergi	Late Jurassic	Noaosauridae	1.5 m	6.2 m	210 kg	Omnivore	Tendaguru Beds, Tanzania	Light-footed pacing	Daffy Duck: "Hey, look at that slender build! Finally, a dinosaur that understands the art of being sleek!"
Eustreptospondylus oxoniensis	Middle Jurassic	Megalosauridae	2 m	4.6 m	500 kg	Carnivore	Oxford Clay, England	Island swimming	Ripjaws: "An island crawler that can swim? Now we're talking my language!"
Megalosaurus bucklandii	Middle Jurassic	Megalosauridae	3 m	6 m	700 kg	Carnivore	Taynton Limestone, England	Historical legacy	Bugs Bunny: "The very first dinosaur ever officially named, doc! A true old-timer."
Torvosaurus gurneyi	Late Jurassic	Megalosauridae	3.2 m	10 m	4 tons	Carnivore	Lourinhã Fm., Portugal	Massive bone crush	Teodora: "This European giant is a total nightmare. Keep your ghosts away from it, Slimer!"
Baryonyx walkeri	Early Cretaceous	Spinosauridae	2.5 m	9 m	1.2 tons	Piscivore	Weald Clay, Surrey, UK	12-inch thumb claw	Baby Kermit: "Yesh! He uses that big claw to catch fish, kind of like a giant scaly bear!"
Spinosaurus aegyptiacus	Late Cretaceous	Spinosauridae	5 m	14 m	7.4 tons	Piscivore / Carnivore	Bahariya Oasis, Egypt	Semi-aquatic propulsion	Slimer: "Sails! Swims! Big mouth full of fish! Can I eat his leftovers? Please?!"
Suchomimus tenerensis	Early Cretaceous	Spinosauridae	3 m	11 m	3 tons	Piscivore	Elrhaz Formation, Niger	Croc-jaw precision	Face: "Brrr! Look at that long snout! It looks exactly like a giant crocodile!"

2. Infraorder: Carnosauria (Tyrants & Giants)

• Order: Saurischia | Suborder: Theropoda

SPECIES	TIME	FAMILY	TALL	SIZE	WEIGHT	DIET	LOCATION / DIGSITE	SPECIAL SKILLS	CARTOON ALL-STARS'S COMMENTS
Albertosaurus sarcophagus	Late Cretaceous	Tyrannosauridae	3 m	9 m	2.5 tons	Carnivore	Horseshoe Canyon, Canada	Pack stealth hunting	Sid: "A Canadian tyrant? I bet he's super polite right up until he bites your head off."
Alioramus altai	Late Cretaceous	Tyrannosauridae	2 m	6 m	800 kg	Carnivore	Nemegt Formation, Mongolia	Long-snouted speed	Simon: "An evolutionary departure from standard tyrant bone-crushing, prioritizing speed and snout agility."
Daspletosaurus horneri	Late Cretaceous	Tyrannosauridae	3 m	9 m	3 tons	Carnivore	Two Medicine Fm., Montana, USA	Tactile facial sensitivity	Kimiko: "So its face was as sensitive as a human hand? Intriguing anatomy for a killer."
Qianzhousaurus sinensis	Late Cretaceous	Tyrannosauridae	2.5 m	9 m	800 kg	Carnivore	Nanxiong Fm., Ganzhou, China	Long-snout ambush	Tee Zeng: "They call him 'Pinocchio Rex'! But I don't think his nose grows when he lies."
Tarbosaurus bataar	Late Cretaceous	Tyrannosauridae	3.5 m	10 m	4.5 tons	Carnivore	Nemegt Formation, Mongolia	Locking jaw mechanism	Michelangelo: "Whoa, dudes! It’s like the Asian cousin of the big T-Rex! Total party crasher!"
Tyrannosaurus rex	Late Cretaceous	Tyrannosauridae	6 m	15.5 m	8.8 tons	Carnivore	Hell Creek, Montana, USA	Bone-crushing bite	Clumsy Smurf: "Golly! I-I think I just tripped right into the path of the King of the Dinosaurs!"
Allosaurus europaeus	Late Jurassic	Allosauridae	4.5 m	12.5 m	6 ton	Carnivore	Lourinhã; Morrison Fm., Portugal; New Mexico	Hatchet-bite jaw strike	Dawn: "Sleek, dangerous, and very common in the Jurassic. Go, Piplup... wait, never mind, run!"
Yangchuanosaurus zigongensis	Late Jurassic	Allosauridae	3.5 m	8 m	1.3 tons	Carnivore	Shaximiao Fm., Sichuan, China	High-crested displays	Theodore: "He's so big... please don't let him notice us hiding in this hollow log!"
Acrocanthosaurus atokensis	Early Cretaceous	Carcharodontosauridae	4 m	11.5 m	6.2 tons	Carnivore	Antlers Fm., Oklahoma, USA	High-spined muscle ridge	Huey, Dewey, & Louie: "Look at that high ridge on his back! He's built like an apex-predator football player!"
Carcharodontosaurus iguidensis	Late Cretaceous	Carcharodontosauridae	4 m	12 m	6 tons	Carnivore	Echkar Formation, Niger	Shark-like slicing teeth	Baby Miss Piggy: "Shark-toothed lizard?! Well, he better not mess with moi or he’ll get a karate chop!"
Giganotosaurus carolinii	Late Cretaceous	Carcharodontosauridae	4.2 m	12.5 m	7 tons	Carnivore	Candeleros Fm., Argentina	Slicing blood loss attack	Helicopter Chorus: "🎶 Flying high away from the giant claws, safe up here from those terrible jaws! 🎶"

3. Infraorder: Coelurosauria (Feathered & Unusual Theropods)

• Order: Saurischia | Suborder: Theropoda

SPECIES	TIME	FAMILY	TALL	SIZE	WEIGHT	DIET	LOCATION / DIGSITE	SPECIAL SKILLS	CARTOON ALL-STARS'S COMMENTS
Coelurus fragilis	Late Jurassic	Coeluridae	0.7 m	2.4 m	20 kg	Carnivore / Insectivore	Morrison Formation, Wyoming, USA	Hollow-boned speed	Garfield: "Hollow bones make him fragile. My bones are padded with lasagna. I win."
Moros intrepidus	Late Cretaceous	Coeluridae	1.2 m	2.5 m	78 kg	Carnivore	Cedar Mountain, Utah, USA	High-speed agility	Alvin: "A tiny, swift ancestor of the T-Rex? Reminds me of me when I get an extra sugar rush."
Nanotyrannus lethaeus	Late Cretaceous	Coeluridae	2 m	5 m	500 kg	Carnivore	Hell Creek, Montana, USA	Pygmy-tyrant speed	Simon: "The debate continues on whether this is a distinct genus or merely a juvenile T. rex."
Proceratosaurus bradleyi	Middle Jurassic	Proceratosauridae	1 m	3 m	40 kg	Carnivore	Forest Marble Fm., England	Nasal crest display	Brainy Smurf: "An early ancestor of the tyrannosauroids, easily distinguished by its prominent skull crest."
Yutyrannus huali	Early Cretaceous	Proceratosauridae	3 m	9 m	1.4 tons	Carnivore	Yixian Formation, China	Complete shaggy plumage	Winnie the Pooh: "A very fluffy, very large tyrant. He looks like a big winter coat with teeth."
Compsognathus longipes	Late Jurassic	Compsognathidae	0.3 m	1 m	3.5 kg	Carnivore	Solnhofen, Germany	Insect catching	Bugs Bunny: "Ain't he a cute little stinker? Just a chicken-sized meat-eater, folks!"
Sinosauropteryx lingyuanensis	Early Cretaceous	Compsognathidae	0.5 m	1.2 m	1 kg	Carnivore / Insectivore	Yixian Formation, China	Ginger-ringed tail camouflage	Teodora: "The first dinosaur to have its true feather colors proven! Orange and white rings!"
Archaeornithomimus asiaticus	Late Cretaceous	Ornithomimidae	1.8 m	3.3 m	50 kg	Omnivore	Iren Dabasu Fm., Inner Mongolia	Ostrich mimicry	Hefty Smurf: "This one looks like an overgrown bird without wings. Bet it can run like the wind!"
Dromiceiomimus samueli	Late Cretaceous	Ornithomimidae	2 m	3.5 m	150 kg	Omnivore	Horseshoe Canyon, Canada	Large-eyed night vision	Kimiko: "Those massive eyes suggest it was an exceptional nocturnal or crepuscular hunter."
Gallimimus bullatus	Late Cretaceous	Ornithomimidae	3 m	6 m	440 kg	Omnivore	Nemegt Formation, Mongolia	High-velocity flocking	Michelangelo: "They're flocking this way! Just like that movie, dudes! Move your shell!"
Ornithomimus velox	Late Cretaceous	Ornithomimidae	2 m	3.8 m	170 kg	Omnivore	Denver Formation, Colorado, USA	Feathered wing-arm steering	Daffy Duck: "An imitation bird! Fraud! Plagiarist! I am the only feather-speed icon around here!"
Struthiomimus altus	Late Cretaceous	Ornithomimidae	2 m	4.3 m	150 kg	Omnivore	Dinosaur Park Fm., Canada	Browse stripping claws	Tigger: "Striped tail? No, but he has long legs built for bouncing and springing!"
Deinocheirus mirificus	Late Cretaceous	Deinocheiridae	6 m	15 m	6.4 tons	Omnivore / Herbivore	Nemegt Formation, Mongolia	Giant sail-backed digging	Slimer: "Look at those giant 8-foot arms! Think of how many plates of food he can carry!"
Oviraptor philoceratops	Late Cretaceous	Oviraptoridae	1.5 m	2 m	40 kg	Omnivore	Djadochta Formation, Mongolia	Egg-brooding beak	Baby Gonzo: "He doesn't steal eggs, he protects them! He's an misunderstood poultry artist!"
Saurornithoides mongoliensis	Late Cretaceous	Saurornithoididae	1.2 m	3 m	45 kg	Carnivore	Djadochta Formation, Mongolia	High-intellect stereoscopic vision	Tee Zeng: "A super smart predator. My shadow-cane would have a tough time tricking this guy."
Troodon formosus	Late Cretaceous	Saurornithoididae	1 m	2.4 m	50 kg	Omnivore / Carnivore	Judith River Fm., Montana, USA	Apex nocturnal hunting	Dawn: "Brrr, those massive eyes and sharp teeth are creepy. Stay close to the campfire, guys."
Therizinosaurus cheloniformis	Late Cretaceous	Therizinosaurus	5 m	10 m	5 tons	Herbivore	Nemegt Formation, Mongolia	3-foot scythe claws	Optimus Prime: "Blades used not for malice, but to harvest vegetation. A gentle giant with formidable defenses."
Atrociraptor marshalli	Late Cretaceous	Dromaeosauridae	1 m	2 m	15 kg	Carnivore	Horseshoe Canyon, Canada	Deep-jawed crushing bite	Face: "Look at that short, strong face! This raptor looks like a fierce bulldog!"
Bambiraptor feinbergi	Late Cretaceous	Dromaeosauridae	0.3 m	0.9 m	2 kg	Carnivore	Two Medicine Fm., Montana, USA	Opposable grasp talons	Baby Kermit: "He's named after a deer, but he's a tiny feathered raptor. Yay for tiny guys!"
Deinonychus antirrhopus	Early Cretaceous	Dromaeosauridae	1.5 m	3.4 m	100 kg	Carnivore	Cloverly Formation, Montana, USA	Counter-balancing tail switch	Papa Smurf: "Ah, the famous 'Terrible Claw'. The animal that changed how we view dinosaurs forever."
Dromaeosaurus albertensis	Late Cretaceous	Dromaeosauridae	0.6 m	2 m	15 kg	Carnivore	Dinosaur Park Fm., Canada	Heavy-duty jaw power	Clumsy Smurf: "Whoops! Good thing his heavy jaws missed my hat!"
Pyroraptor olympius	Late Cretaceous	Dromaeosauridae	0.6 m	1.6 m	30 kg	Carnivore	Grès à Reptiles Fm., France	Curved sickle-claw climbing	ALF: "A fire thief from France! Does he go well with a side of French fries? Just checking."
Saurornitholestes sullivani	Late Cretaceous	Dromaeosauridae	0.8 m	1.8 m	10 kg	Carnivore	Kirtland Formation, New Mexico	Elite olfactory sense	Simon: "Fossil skull structures indicate an unusually advanced sense of smell for a dromaeosaurid."
Utahraptor ostrommaysorum	Early Cretaceous	Dromaeosauridae	2 m	7 m	500 kg	Carnivore	Cedar Mountain, Utah, USA	Heavyweight kick slashing	Hefty Smurf: "Now that is a raptor! Built like a tank with 9-inch foot switchblades!"
Velociraptor osmolskae	Late Cretaceous	Dromaeosauridae	0.5 m	2 m	15 kg	Carnivore	Bayan Mandahu Fm., Inner Mongolia	Pinning prey down	Bugs Bunny: "Sorry to burst your bubble, folks, but this real-life doc is only the size of a turkey."
Archaeopteryx albersdoerferi	Late Jurassic	Archaeopterygidae	0.3 m	0.5 m	0.5 kg	Carnivore / Insectivore	Solnhofen, Germany	Powered avian flight flight	Daffy Duck: "The transitional link between dinosaur and bird! See? I come from royalty!"

4. Suborder: Sauropodomorpha (Prosauropods & Early Sauropods)

• Order: Saurischia | Suborder: Sauropodomorpha

SPECIES	TIME	FAMILY	TALL	SIZE	WEIGHT	DIET	LOCATION / DIGSITE	SPECIAL SKILLS	CARTOON ALL-STARS'S COMMENTS
Herrerasaurus ischigualastensis	Late Triassic	Herrerasauridae	1.5 m	6 m	350 kg	Carnivore	Ischigualasto Fm., Argentina	Sliding lower jaw grip	Garfield: "An early meat-eater from Argentina. Still glad he wasn't around to take my food."
Smurfette smurfensis	Fantasy Triassic	Herrerasauridae	1.0 m	3.5 m	120 kg	Herbivore / Smurfberry	Smurf Village Digsite	Blue skin camouflage	Papa Smurf: "Bless my soul! A custom Peyo dinosaur species colored entirely in smurf-blue!"
Staurikosaurus pricei	Late Triassic	Herrerasauridae	0.8 m	2.2 m	30 kg	Carnivore	Santa Maria Fm., Brazil	High-velocity sprint	Alvin: "Small, fast, and toothy. It’s like a lizard version of our rock band on tour!"
Anchisaurus polyzelus	Early Jurassic	Anchisauridae	0.8 m	2 m	27 kg	Herbivore / Omnivore	Portland Fm., Connecticut, USA	Facultative bipedalism	Simon: "An early prosauropod capable of switching between two-legged and four-legged locomotion."
Efraasia minor	Late Triassic	Anchisauridae	1.2 m	6 m	300 kg	Herbivore	Löwenstein Formation, Germany	Slender browse-reaching	Theodore: "He looks so peaceful just munching on ferns. I like this guy."
Thecodontosaurus antiquus	Late Triassic	Anchisauridae	0.3 m	1.2 m	11 kg	Herbivore	Bristol, England	Spoon-shaped gripping teeth	Brainy Smurf: "Its name means 'socket-toothed lizard'. An essential textbook example of early herbivore evolution!"
Massospondylus kaalae	Early Jurassic	Plateosauridae	1.8 m	4 m	135 kg	Herbivore	Upper Elliot Fm., South Africa	Gizzard-stone digestion	Winnie the Pooh: "He swallows little stones to help digest his tummy full of green plants."
Mussaurus patagonicus	Late Triassic	Plateosauridae	1.5 m	6 m	1 ton	Herbivore	El Tranquilo Fm., Argentina	Ontogenetic growth shift	Baby Miss Piggy: "The babies fit inside a human hand, but the adults are huge! Unbelievable!"
Plateosaurus gracilis	Late Triassic	Plateosauridae	3 m	7 m	1 ton	Herbivore	Trossingen Fm., Germany	High-reach bipedal feeding	Hefty Smurf: "This guy is built strong to pull down branches. A true powerhouse of the Triassic!"
Riojasaurus incertus	Late Triassic	Melanorosauridae	3 m	10 m	3 tons	Herbivore	Los Colorados Fm., Argentina	Obligate quadrupedal lumber	Sid: "A massive early plant-eater who couldn't lift up onto two legs. I relate to that after a heavy nap."

5. Infraorder: Sauropoda (The Long-Necked Giants)

• Order: Saurischia | Suborder: Sauropodomorpha

SPECIES	TIME	FAMILY	TALL	SIZE	WEIGHT	DIET	LOCATION / DIGSITE	SPECIAL SKILLS	CARTOON ALL-STARS'S COMMENTS
Barapasaurus tagorei	Early Jurassic	Cetiosauridae	4 m	14 m	7 tons	Herbivore	Kota Formation, India	Early column-like limbs	Tee Zeng: "Its name means 'Big-legged lizard'. It looks like a walking temple column!"
Cetiosaurus oxoniensis	Middle Jurassic	Cetiosauridae	4.5 m	16 m	11 tons	Herbivore	Rutland, England	Heavy bone density	Bugs Bunny: "The 'whale lizard', doc. Though it never swam a day in its life!"
Apatosaurus ajax	Late Jurassic	Diplodocidae	7 m	27 m	22 tons	Herbivore	Morrison Formation, Colorado, USA	Supersonic tail whip	Michelangelo: "Cowabunga! That giant tail could snap faster than the speed of sound!"
Barosaurus lentus	Late Jurassic	Diplodocidae	18 m	37 m	30 tons	Herbivore	Morrison Formation, South Dakota	Ultra-elongated neck reach	Kimiko: "Its neck was so long it probably required an incredibly powerful heart to pump blood to the brain."
Diplodocus hallorum	Late Jurassic	Diplodocidae	6 m	32 m	25 tons	Herbivore	Morrison Formation, New Mexico	Extreme horizontal sweep	Daffy Duck: "Thirty-two meters long?! Think of the real estate value on a tail like that!"
Mamenchisaurus sinocanadorum	Late Jurassic	Diplodocidae	17.6 m	35 m	60 tons	Herbivore	Shishugou Formation, China	World-record 50-foot neck	Optimus Prime: "A marvel of biological engineering. A neck that spans half the length of its entire body."
Supersaurus vivianae	Late Jurassic	Diplodocidae	21.5 m	39 m	40 tons	Herbivore	Morrison Formation, Colorado, USA	Extreme body length	ALF: "That is a super-sized lizard. Think of how many cats it could accidentally step on!"
Amargasaurus cazaui	Early Cretaceous	Dicraeosauridae	2.5 m	10 m	2.6 tons	Herbivore	La Amarga Fm., Argentina	Double-row neck spines	Teodora: "Those twin rows of spikes along its neck look like a fancy, punk-rock hairdo!"
Dicraeosaurus sattleri	Late Jurassic	Dicraeosauridae	3 m	12 m	4 tons	Herbivore	Tendaguru Beds, Tanzania	Low-level specialized browsing	Clumsy Smurf: "Gosh, a long-neck that's actually short enough for me to talk to without a megaphone!"
Brachiosaurus altithorax	Late Jurassic	Brachiosauridae	14.2 m	24.5 m	45 tons	Herbivore	Morrison; Kota Formation, Colorado, USA; India	High-canopy vertical feeding	Helicopter Chorus: "🎶 Browsing the treetops up in the sky, even our rotors can see eye-to-eye! 🎶"
Giraffatitan brancai	Late Jurassic	Brachiosauridae	13 m	22 m	40 tons	Herbivore	Tendaguru Beds, Tanzania	Elevated giraffe posture	Winnie the Pooh: "He doesn't need to climb trees to get his lunch. He is already as tall as the tree."
Sauroposeidon proteles	Early Cretaceous	Brachiosauridae	17 m	34 m	50 tons	Herbivore	Antlers Fm., Oklahoma, USA	Highest skyscraper neck	Face: "Wow! He can peer right into the windows of a six-story building!"
Camarasaurus supremus	Late Jurassic	Camarasauridae	9 m	21 m	28 tons	Herbivore	Morrison Formation, Colorado, USA	Box-skulled powerful bite	Dawn: "That blunt, boxy head looks like it could eat tough branches other sauropods couldn't touch."
Euhelopus zdanskyi	Early Cretaceous	Camarasauridae	4 m	15 m	4 tons	Herbivore	Mengyin Formation, China	Spatulate leaf-shearing teeth	Huey, Dewey, & Louie: "Look at those teeth! Perfect for acting like giant garden pruning shears!"
Opisthocoelicaudia skarzynskii	Late Cretaceous	Camarasauridae	3.5 m	11 m	10 tons	Herbivore	Nemegt Formation, Mongolia	Tripodal tail bracing	Slimer: "He can stand up on his back legs by balancing on his strong tail! Ultimate reach!"
Alamosaurus sanjuanensis	Late Cretaceous	Titanosauridae	10 m	30 m	60 tons	Herbivore	Ojo Alamo Fm., New Mexico, USA	Osteoderm back body armor	Tigger: "A giant long-neck with armor bumps on its back! Talk about a tough customer!"
Dreadnoughtus schrani	Late Cretaceous	Titanosauridae	19 m	26 m	49 tons	Herbivore	Cerro Fortaleza Fm., Argentina	Complete skeleton integrity	Sid: "He was named 'Dreadnought' because he feared absolutely nothing. Must be nice!"
Patagotitan mayorum	Late Cretaceous	Titanosauridae	12 m	37 m	70 tons	Herbivore	Cerro Barcino Fm., Argentina	Mass-weight record holder	Papa Smurf: "Astounding! One of the largest land animals to ever walk our planet."
Puertasaurus reuili	Late Cretaceous	Titanosauridae	15 m	30 m	55 tons	Herbivore	Pari Aike Fm., Argentina	Massive chest cavity breadth	Garfield: "Now that is a wide chest. Finally, someone who understands my body shape."
Saltasaurus loricatus	Late Cretaceous	Titanosauridae	3 m	8.5 m	2.5 tons	Herbivore	Lecho Formation, Argentina	Bony armored skin scutes	Baby Kermit: "He's a tiny long-neck covered in bumpy armor plates! Like a giant turtle without a shell!"

🦖 Dinosaur Chart Tables (Ornithischia: Cerapoda & Thyreophora)

The Cartoon All-Stars take turns sharing their personal, comedic, and character-driven commentary on every dinosaur listed.

1. Infraorder: Ornithopoda (Early & Small Omnivores/Browsers)

• Order: Ornithischia | Suborder: Cerapoda

SPECIES	TIME	FAMILY	TALL	SIZE	WEIGHT	DIET	LOCATION / DIGSITE	SPECIAL SKILLS	CARTOON ALL-STARS'S COMMENTS
Echinodon becklesii	Early Cretaceous	Heterodontosauridae	0.2 m	0.6 m	1 kg	Omnivore	Purbeck Group, England	Spine-like bristles	Hefty Smurf: "A tiny, spiky fellow. He looks like a pincushion that bites!"
Heterodontosaurus tucki	Early Jurassic	Heterodontosauridae	0.5 m	1.2 m	3.4 kg	Omnivore	Elliot Formation, South Africa	Differentiated fangs	Garfield: "Fangs for a plant-eater? Now that’s a guy who wants to look tough at the dinner table."
Lesothosaurus diagnosticus	Early Jurassic	Fabrosauridae	0.4 m	2 m	8 kg	Herbivore	Upper Elliot Fm., Lesotho	Agile sprint running	Alvin Seville: "Fast, skinny, and always on the move. I bet he could dodge a net as fast as me!"
Pisanosaurus mertii	Late Triassic	Fabrosauridae	0.3 m	1 m	5 kg	Herbivore	Ischigualasto Fm., Argentina	Primitive jaw chewing	Simon: "One of the most foundational and earliest known ornithischians in the fossil record."
Scutellosaurus lawleri	Early Jurassic	Fabrosauridae	0.5 m	1.2 m	3 kg	Herbivore	Kayenta Formation, Arizona, USA	Bony armor studs	Teodora: "A tiny lizard covered in miniature armor beads. Absolutely adorable fashion!"
Callovosaurus leedsi	Middle Jurassic	Hypsilophodontidae	0.8 m	2.5 m	25 kg	Herbivore	Oxford Clay, England	Swift low browsing	Theodore: "He looks so gentle and fragile. I hope the big meat-eaters don't see him."
Dryosaurus elderae	Late Jurassic	Hypsilophodontidae	1.5 m	3 m	100 kg	Herbivore	Morrison Formation, Utah, USA	High-velocity evasion	Winnie the Pooh: "A very fast friend who eats leaves. I don't think he would care for honey."
Hypsilophodon foxii	Early Cretaceous	Hypsilophodontidae	0.6 m	1.8 m	20 kg	Herbivore	Wessex Formation, Isle of Wight	Sharp horny beak	Bugs Bunny: "They used to think this doc lived in trees! Turns out he's strictly a ground runner, folks."
Nanosaurus agilis	Late Jurassic	Hypsilophodontidae	0.6 m	2 m	10 kg	Herbivore	Morrison Formation, Colorado, USA	Ultra-lightweight leaping	Baby Kermit: "He's super small and super springy! Boing, boing, boing!"
Orodromeus makelai	Late Cretaceous	Hypsilophodontidae	0.7 m	2.5 m	20 kg	Herbivore	Two Medicine Fm., Montana, USA	Subterranean burrowing	Slimer: "He digs tunnels underground! I wonder if he ever finds buried snacks down there?"
Parksosaurus warreni	Late Cretaceous	Hypsilophodontidae	1 m	2.5 m	45 kg	Herbivore	Horseshoe Canyon, Canada	Stiff balance tail	Tigger: "His tail stays completely stiff when he hops around! That's a neat bouncing trick!"
Thescelosaurus garbanii	Late Cretaceous	Hypsilophodontidae	1.2 m	3.5 m	300 kg	Herbivore	Hell Creek, Montana, USA	Heavily built running	Daffy Duck: "A plant-eater living right under T-Rex's nose? Now that is a stressful lifestyle!"

2. Infraorder: Ornithopoda (Iguanodonts & Hadrosaurs / "Duck-Billed" Dinosaurs)

• Order: Ornithischia | Suborder: Cerapoda

SPECIES	TIME	FAMILY	TALL	SIZE	WEIGHT	DIET	LOCATION / DIGSITE	SPECIAL SKILLS	CARTOON ALL-STARS'S COMMENTS
Camptosaurus dispar	Late Jurassic	Iguanodontidae	2 m	6 m	800 kg	Herbivore	Morrison Formation, Wyoming, USA	Beaked plant slicing	Dawn: "He can walk on two legs or four! Talk about a versatile traveler."
Iguanodon bernissartensis	Early Cretaceous	Iguanodontidae	4.2 m	11.8 m	4.5 tons	Herbivore	Bernissart, Belgium	Dagger-like thumb spikes	Optimus Prime: "A peaceful herbivore equipped with a built-in blade for defense. Excellent design."
Muttaburrasaurus langdoni	Early Cretaceous	Iguanodontidae	2.5 m	8 m	2.8 tons	Herbivore	Mackunda Fm., Queensland, Australia	Inflatable nasal chamber	Michelangelo: "Whoa, this dude has a huge hollow nose! He could honk louder than a car horn!"
Ouranosaurus nigeriensis	Early Cretaceous	Iguanodontidae	3 m	7 m	2.2 tons	Herbivore	Elrhaz Formation, Niger	Sail-backed ridge display	Ripjaws: "A huge fin on its back! It looks like a giant river-dwelling fish on legs!"
Tenontosaurus dossi	Early Cretaceous	Iguanodontidae	2 m	6.5 m	1 ton	Herbivore	Twin Mountains Fm., Texas, USA	Ultra-long whip tail	Sid: "That tail is more than half its body length! Talk about carrying a lot of extra baggage."
Bactrosaurus johnsoni	Late Cretaceous	Hadrosauridae	2 m	6 m	1.5 tons	Herbivore	Iren Dabasu Fm., Inner Mongolia	Club-like spinal ridges	Papa Smurf: "An early, primitive ancestor of the magnificent duck-billed family."
Corythosaurus casuarius	Late Cretaceous	Hadrosauridae	4 m	9 m	3.8 tons	Herbivore	Dinosaur Park; Lance Fm., Canada; Wyoming, USA	Helmet-crest acoustics	Face: "Hooray! His head looks exactly like a giant round helmet!"
Edmontosaurus regalis	Late Cretaceous	Hadrosauridae	4.5 m	12 m	4 tons	Herbivore	Horseshoe Canyon; Lance, Canada; Wyoming, USA	Massive flat-billed browse	Brainy Smurf: "Fossils show this massive duck-bill actually had a fleshy, rooster-like comb on its head!"
Hadrosaurus foulkii	Late Cretaceous	Hadrosauridae	3.5 m	8 m	3 tons	Herbivore	Woodbury Formation, New Jersey, USA	Historic benchmark skull	Bugs Bunny: "The first dinosaur skeleton ever put on display in the whole wide world, folks!"
Hypacrosaurus stebingeri	Late Cretaceous	Hadrosauridae	4 m	9 m	4 tons	Herbivore	Two Medicine Fm., Montana, USA	High-spined back crest	Baby Miss Piggy: "He has a fancy high ridge along his back. It makes him look very tall and dramatic!"
Kritosaurus navajovius	Late Cretaceous	Hadrosauridae	3.5 m	9 m	3.5 tons	Herbivore	Kirtland Formation, New Mexico	Hook-nosed skull ridge	ALF: "Now that is a magnificent snout! We could be distant relatives from Melmac."
Lambeosaurus magnicristatus	Late Cretaceous	Hadrosauridae	4 m	9.5 m	4 tons	Herbivore	Dinosaur Park Fm., Canada	Hatchet-shaped hollow crest	Huey, Dewey, & Louie: "His head crest looks like a big backward axe! That is crazy!"
Maiasaura peeblesorum	Late Cretaceous	Hadrosauridae	3 m	9 m	3 tons	Herbivore	Two Medicine Fm., Montana, USA	Communal nesting care	Baby Gonzo: "The 'Good Mother Lizard'! She raised her babies in huge colonies, just like a big family!"
Olorotitan arharensis	Late Cretaceous	Hadrosauridae	4.5 m	12 m	5 tons	Herbivore	Tsagayan Fm., Amur Region, Russia	Fan-shaped hatchet crest	Tee Zeng: "A giant from Russia with a fan on his head. He's ready for a performance!"
Parasaurolophus walkeri	Late Cretaceous	Hadrosauridae	4 m	10 m	2.5 tons	Herbivore	Kaiparowits Fm., Utah, USA	6-foot trombone tube crest	Helicopter Chorus: "🎶 Honking loud through the forest trees, making music on the evening breeze! 🎶"
Prosaurolophus maximus	Late Cretaceous	Hadrosauridae	3.5 m	9 m	3 tons	Herbivore	Dinosaur Park Fm., Canada	Small solid crest bump	Clumsy Smurf: "Golly, his horn is small. He must not bump into as many things as I do."
Saurolophus osborni	Late Cretaceous	Hadrosauridae	4 m	9.8 m	3 tons	Herbivore	Horseshoe Canyon, Canada	Spike-like backward crest	Alvin: "A built-in megaphone spike on the back of his head! Let's start a rock band!"
Shantungosaurus giganteus	Late Cretaceous	Hadrosauridae	7 m	18.8 m	16 tons	Herbivore	Wangshi Group, Shandong, China	Colossal body scaling	Garfield: "The biggest non-sauropod dinosaur ever. Think of how much salad this guy cleared out."
Tsintaosaurus spinorhinus	Late Cretaceous	Hadrosauridae	3.5 m	10 m	3 tons	Herbivore	Wangshi Group, Shandong, China	Forward-pointing horn	Daffy Duck: "A unicorn dinosaur! Outrageous! He's stealing my spotlight with that headpiece!"

3. Infraorder: Ceratopia (Pachycephalosaurs / "Bone-Headed" Dinosaurs)

• Order: Ornithischia | Suborder: Cerapoda

SPECIES	TIME	FAMILY	TALL	SIZE	WEIGHT	DIET	LOCATION / DIGSITE	SPECIAL SKILLS	CARTOON ALL-STARS'S COMMENTS
Dracorex hogwartsia	Late Cretaceous	Pachycephalosauridae	1.3 m	3 m	180 kg	Herbivore	Hell Creek, South Dakota, USA	Dragon-like skull spikes	Teodora: "Named after Hogwarts! It looks exactly like a fairy-tale dragon, but without wings."
Homalocephale calathocercos	Late Cretaceous	Pachycephalosauridae	0.6 m	1.8 m	43 kg	Herbivore	Nemegt Formation, Mongolia	Flat-topped dense skull	Simon: "Unlike its dome-headed relatives, this genus retained a completely flat skull roof."
Pachycephalosaurus wyomingensis	Late Cretaceous	Pachycephalosauridae	2 m	4.5 m	450 kg	Herbivore	Hell Creek, Montana, USA	10-inch thick solid bone dome	Hefty Smurf: "This guy is the ultimate headbutter! Ten inches of solid bone on his noggin!"
Prenocephale prenes	Late Cretaceous	Pachycephalosauridae	1 m	2.4 m	130 kg	Herbivore	Nemegt Formation, Mongolia	Fully rounded bone dome	Brainy Smurf: "Its name means 'sloping head'. A magnificent specimen of Late Cretaceous fauna."
Stegoceras validum	Late Cretaceous	Pachycephalosauridae	0.7 m	2 m	40 kg	Herbivore	Dinosaur Park Fm., Canada	Domed skull display	Theodore: "He's about my size, but I wouldn't want to get in a bumping match with him!"
Stygimoloch spinifer	Late Cretaceous	Pachycephalosauridae	1.5 m	3 m	200 kg	Herbivore	Hell Creek, Montana, USA	Long rear head spikes	Michelangelo: "Whoa, dudes! It looks like a heavy-metal dinosaur with all those crazy horns on the back!"

4. Infraorder: Ceratopia (Psittacosaurids & Horned / Frilled Dinosaurs)

• Order: Ornithischia | Suborder: Cerapoda

SPECIES	TIME	FAMILY	TALL	SIZE	WEIGHT	DIET	LOCATION / DIGSITE	SPECIAL SKILLS	CARTOON ALL-STARS'S COMMENTS
Psittacosaurus meileyingensis	Early Cretaceous	Psittacosauridae	0.8 m	2 m	30 kg	Herbivore	Jiufotang Formation, China	Parrot-beak plant crushing	Baby Kermit: "The 'Parrot Lizard'! He has a funny beak just like a giant bird!"
Bagaceratops rozhdestvenskyi	Late Cretaceous	Protoceratopidae	0.5 m	1 m	22 kg	Herbivore	Djadochta Formation, Mongolia	Miniature hornless frill	Winnie the Pooh: "A very small, bumpy dinosaur. He looks like a little scaly piglet."
Leptoceratops gracilis	Late Cretaceous	Protoceratopidae	0.8 m	2 m	100 kg	Herbivore	Scollard Formation, Canada	Deep jaw cropping	Clumsy Smurf: "Whoops! He doesn't have any horns, so at least I won't get poked!"
Montanoceratops cerorhynchus	Late Cretaceous	Protoceratopidae	1 m	3 m	170 kg	Herbivore	St. Mary River Fm., Montana, USA	Nasal horn core	Dawn: "He's like a mini triceratops without the big brow horns. Still looks pretty tough."
Protoceratops hellenikorhinus	Late Cretaceous	Protoceratopidae	0.8 m	2.5 m	180 kg	Herbivore	Bayan Mandahu, Inner Mongolia	Flaired display frill	Bugs Bunny: "The famous anchor of the Gobi desert, doc. Velociraptor's favorite wrestling partner!"
Brachyceratops montanensis	Late Cretaceous	Ceratopidae	1 m	3 m	300 kg	Herbivore	Two Medicine Fm., Montana, USA	Juvenile horn structures	Baby Gonzo: "A pint-sized horned dinosaur! He's weird and small, just like me!"
Centrosaurus apertus	Late Cretaceous	Ceratopidae	2.5 m	6 m	2.7 tons	Herbivore	Dinosaur Park Fm., Canada	Single curved nasal horn	Tigger: "Look at that hook on his nose! Perfect for bouncing through the prehistoric brush!"
Chasmosaurus belli	Late Cretaceous	Ceratopidae	2 m	5 m	2 tons	Herbivore	Dinosaur Park Fm., Canada	Large rectangular frill	Slimer: "That giant frill looks like a big dinner tray! Imagine how many burgers could fit on there!"
Lokiceratops rangiformis	Late Cretaceous	Ceratopidae	2.5 m	6.7 m	5 tons	Herbivore	Judith River Fm., Montana, USA	Giant curved frill hooks	Optimus Prime: "Named after a Norse god of mischief. Its massive frill blades are truly formidable."
Nasutoceratops titusi	Late Cretaceous	Ceratopidae	2.5 m	4.5 m	1.5 tons	Herbivore	Kaiparowits Fm., Utah, USA	Bull-like curved horns	ALF: "Horns shaped like a cow? Does he produce prehistoric milk? Probably not."
Pachyrhinosaurus lakustai	Late Cretaceous	Ceratopidae	2.5 m	6 m	3 tons	Herbivore	Wapiti; Hell Creek Formation, Alberta, Canada; Montana	Massive bony nose boss	Face: "Ouch! Instead of a horn, he has a big flat bone cushion on his snout!"
Pentaceratops sternbergii	Late Cretaceous	Ceratopidae	4.2 m	6.5 m	5 tons	Herbivore	Kirtland Formation, New Mexico	Five-horned head shield	Tee Zeng: "Five horns and a giant shield. This guy is built like an ancient general."
Sinoceratops zhuchengensis	Late Cretaceous	Ceratopidae	2.5 m	6 m	2 tons	Herbivore	Xingezhuang Fm., Shandong, China	Hooked frill ornaments	Alvin: "A horned dinosaur from China with a ring of hooks on his collar! Total rockstar style!"
Styracosaurus ovatus	Late Cretaceous	Ceratopidae	2.5 m	5.5 m	2.7 tons	Herbivore	Dinosaur Park Fm., Canada	Long frill spike array	Daffy Duck: "He's wearing a crown of giant spikes! Talk about an attention-seeker!"
Triceratops horridus	Late Cretaceous	Ceratopidae	3 m	9 m	9 tons	Herbivore	Hell Creek, Montana, USA	3-horned defense shield	Papa Smurf: "The iconic three-horned face. A magnificent defender capable of standing up to the Tyrant King."

5. Infraorder: Stegosauria (Plated Dinosaurs)

• Order: Ornithischia | Suborder: Thyreophora

SPECIES	TIME	FAMILY	TALL	SIZE	WEIGHT	DIET	LOCATION / DIGSITE	SPECIAL SKILLS	CARTOON ALL-STARS'S COMMENTS
Chungkingosaurus jiangbeiensis	Late Jurassic	Stegosauridae	1.5 m	4 m	1 ton	Herbivore	Shaximiao Fm., Chongqing, China	Multi-spike thagomizer	Tee Zeng: "A smaller plated cousin, but that spiked tail looks incredibly dangerous."
Gigantspinosaurus sichuanensis	Late Jurassic	Stegosauridae	1.5 m	4.2 m	700 kg	Herbivore	Shaximiao Formation, China	Giant shoulder spikes	Michelangelo: "Whoa, check out those massive shoulder swords! Radical defense, dude!"
Kentrosaurus aethiopicus	Late Jurassic	Stegosauridae	1.5 m	4.5 m	1.1 tons	Herbivore	Tendaguru Beds, Tanzania	Long rear spine spikes	Hefty Smurf: "Plates in the front, giant needles in the back. This guy is 100% muscle and spikes!"
Stegosaurus stenops	Late Jurassic	Stegosauridae	4 m	9 m	5 tons	Herbivore	Morrison Formation, Colorado, USA	Alternating back plates	Papa Smurf: "A classic marvel of nature. Those magnificent plates helped regulate its body heat."
Tuojiangosaurus multispinus	Late Jurassic	Stegosauridae	2 m	7 m	2.8 tons	Herbivore	Shaximiao Formation, China	Cone-shaped plates	Simon: "Fossil evidence suggests its pointed back plates were highly effective at deterring predators."
Wuerhosaurus ordosensis	Early Cretaceous	Stegosauridae	2 m	7 m	4 tons	Herbivore	Lianmuqin Formation, Wuerho, China	Flat, rectangular plates	Baby Miss Piggy: "His back plates are completely flat and wide! They look like beautiful fans."
Scelidosaurus harrisonii	Early Jurassic	Scelidosauridae	1.2 m	4 m	270 kg	Herbivore	Charmouth, Dorset, England	Early armored scaling	Bugs Bunny: "An early ancestor of both the plated and armored dinosaurs, doc. A true evolutionary hybrid!"

6. Infraorder: Ankylosauria (Armored & Club-Tailed Dinosaurs)

• Order: Ornithischia | Suborder: Thyreophora

SPECIES	TIME	FAMILY	TALL	SIZE	WEIGHT	DIET	LOCATION / DIGSITE	SPECIAL SKILLS	CARTOON ALL-STARS'S COMMENTS
Hylaeosaurus armatus	Early Cretaceous	Nodosauridae	1.2 m	5 m	2 tons	Herbivore	Wealden Group, West Sussex, UK	Large neck spines	Dawn: "He doesn't have a tail club, but those giant shoulder spikes make him look like a moving fortress."
Nodosaurus textilis	Late Cretaceous	Nodosauridae	1.5 m	5.5 m	2.5 tons	Herbivore	Frontier Formation, Wyoming, USA	Woven pebble armor	Garfield: "A bumpy, textured back. Looks like a walking waffle iron. Pass the syrup."
Panoplosaurus mirus	Late Cretaceous	Nodosauridae	2 m	6 m	3.5 tons	Herbivore	Dinosaur Park Fm., Canada	Heavy overlapping skull plates	Optimus Prime: "An exceptional display of defensive engineering. Its skull is entirely reinforced with heavy armor."
Sauropelta edwardsorum	Early Cretaceous	Nodosauridae	1.5 m	5.2 m	2.5 tons	Herbivore	Cloverly Formation, Montana, USA	Massive forward neck spikes	Ripjaws: "Good luck biting through that neck! It's covered in giant bony spikes!"
Silvisaurus condrayi	Early Cretaceous	Nodosauridae	1 m	4 m	1 ton	Herbivore	Dakota Formation, Kansas, USA	Hollow nasal cavities	ALF: "An armored dino with a big hollow nose from Kansas. Sounds like a party animal."
Struthiosaurus transilvanicus	Late Cretaceous	Nodosauridae	0.8 m	2.5 m	300 kg	Herbivore	Sânpetru Fm., Romania	Dwarf armored scaling	Clumsy Smurf: "He's small and covered in bumps! He fits right in with us Smurfs."
Ankylosaurus magniventris	Late Cretaceous	Ankylosauridae	3.7 m	10.8 m	6 tons	Herbivore	Hell Creek, Montana, USA	Heavy bone tail club	Helicopter Chorus: "🎶 Swinging his tail with a heavy smash, keeping the predators back in a flash! 🎶"
Euoplocephalus tutus	Late Cretaceous	Ankylosauridae	1.8 m	5.5 m	2.5 tons	Herbivore	Dinosaur Park Fm., Canada	Armored eyelids	Slimer: "Even his eyelids are made of solid bone! He can blink away attacks!"
Pinacosaurus grangeri	Late Cretaceous	Ankylosauridae	1.4 m	5 m	1.9 tons	Herbivore	Djadochta Formation, Mongolia	Multi-hole respiratory system	Winnie the Pooh: "A very bumpy friend who lives in the dusty sand. He has extra holes in his nose to breathe easy."
Tarchia teresae	Late Cretaceous	Ankylosauridae	2 m	5.5 m	2.5 tons	Herbivore	Barun Goyot Fm., Mongolia	Heavy-bulbed tail mallet	Alvin: "Look at that giant tail club mallet! He's ready to smash some drums!"

🌊 Prehistoric Marine Reptiles ("Sea Monsters")

• Class: Reptilia | Orders: Mesosauria, Plesiosauria, Nothosauria, Ichthyosauria, Squamata

SPECIES	TIME	ORDER / FAMILY	TALL / DEPTH	SIZE	WEIGHT	DIET	LOCATION / DIGSITE	SPECIAL SKILLS	CARTOON ALL-STARS'S COMMENTS
Hylonomus latidens	Late Carboniferous	Protorothyrididae	0.05 m	0.2 m	200 g	Insectivore	Joggins Fossil Cliffs, Nova Scotia, Canada	Agile climbing	Bugs Bunny: "The earliest known true reptile, doc! Basically the great-grandpa of every lizard on this list."
Mesosaurus tenuidens	Early Permian	Mesosauria / Mesosauridae	0.2 m	1 m	2 kg	Piscivore / Crustaceans	Irati Formation, Brazil	Paddle-tail propulsion	Simon: "An essential anatomical indicator used by Alfred Wegener to corroborate his theory of continental drift."
Plesiosaurus dolichodeirus	Early Jurassic	Plesiosauria / Plesiosauridae	1 m	3.5 m	400 kg	Piscivore	Blue Lias, Dorset, England	Interlocking tooth trap	Baby Kermit: "He's got a super long neck like a snake, but he's swimming like a big sea turtle! Yay!"
Cryptoclidus richardsoni	Late Jurassic	Plesiosauria / Cryptocleididae	1.2 m	4 m	800 kg	Piscivore / Cephalopods	Oxford Clay, England	Needle-like fish sieving	Hefty Smurf: "Look at those overlapping thin teeth. Once a fish gets in there, it’s not smurfing out!"
Elasmosaurus platyurus	Late Cretaceous	Plesiosauria / Elasmosauridae	2 m	10.3 m	2 tons	Piscivore	Pierre Shale, Kansas, USA	72 neck vertebrae reach	Helicopter Chorus: "🎶 Dipping his head deep under the wave, looking for fishy snacks to crave! 🎶"
Attenborosaurus conybeari	Early Jurassic	Plesiosauria / Pliosauridae	1.5 m	5 m	1 ton	Piscivore	Charmouth, Dorset, England	High-speed underwater cruise	Teodora: "Named after Sir David Attenborough! Now that is what I call legendary scientific fashion."
Kronosaurus queenslandicus	Early Cretaceous	Plesiosauria / Pliosauridae	2.5 m	10.5 m	11 tons	Apex Carnivore	Toolebuc Formation, Australia	Crocodile-shattering bite	Ripjaws: "Massive skull, giant crushing jaws, and built like an underwater tank. This guy rules the deep!"
Liopleurodon ferox	Callovian (Jurassic)	Plesiosauria / Pliosauridae	2.2 m	6.4 m	3 tons	Apex Carnivore	Oxford Clay, England	Directional smell tracking	Michelangelo: "Whoa, a magical Liopleurodon! This dude has nostrils that can smell exactly where dinner is hiding!"
Nothosaurus giganteus	Middle Triassic	Nothosauria / Nothosauridae	1 m	5.5 m	800 kg	Piscivore	Muschelkalk, Germany	Amphibious beach hauling	Sid: "He hunts in the water but lounges on the rocks. Finally, a reptile who appreciates the art of sunbathing."
Ichthyosaurus conybeari	Early Jurassic	Ichthyosauria / Ichthyosauridae	0.6 m	2 m	90 kg	Piscivore / Skuids	Blue Lias, Dorset, England	Deep dive respiration	Dawn: "He looks exactly like a prehistoric dolphin! But my books say he's 100% reptile."
Mosasaurus beaugei	Late Cretaceous	Squamata / Mosasauridae	4.5 m	50 m	500 tons	Apex Carnivore	Oulad Abdoun Basin, Morocco	Pterygoid double-row teeth	Slimer: "He has an extra row of teeth in the top of his mouth! Think of how fast he can swallow a whole buffet!"
Tylosaurus bernardi	Late Cretaceous	Squamata / Mosasauridae	3 m	13 m	8 tons	Apex Carnivore	Niobrara Chalk, Kansas, USA	Battering-ram snout	Optimus Prime: "A tactical predator utilizing a hardened, bone-reinforced snout to ram and incapacitate its targets."

🦤 Pterosaurs (Flying Reptiles)

• Class: Reptilia | Order: Pterosauria

SPECIES	TIME	SUBORDER / FAMILY	WINGSPAN	SIZE	WEIGHT	DIET	LOCATION / DIGSITE	SPECIAL SKILLS	CARTOON ALL-STARS'S COMMENTS
Dimorphodon macronyx	Early Jurassic	Rhamphorhynchoidea / Dimorphodontidae	1.4 m	1 m	2 kg	Piscivore / Insects	Blue Lias, Dorset, England	Dual-profile puffin teeth	Daffy Duck: "Look at that oversized skull! He’s trying to steal my look. Pure plagiarism!"
Eudimorphodon ranzii	Late Triassic	Rhamphorhynchoidea / Eudimorphodontidae	1 m	0.5 m	1 kg	Piscivore	Cene, Lombardy, Italy	Multi-cusped crushing teeth	Brainy Smurf: "Fossil stomach contents explicitly prove this Triassic flyer was an expert fish hunter."
Anurognathus ammoni	Late Jurassic	Rhamphorhynchoidea / Rhamphorhynchidae	0.5 m	0.1 m	40 g	Insectivore	Solnhofen Limestone, Germany	Nocturnal radar flight	Alvin: "A tiny, bug-eyed flying bat-lizard! He looks like he drank too much soda!"
Rhamphorhynchus etchesi	Late Jurassic	Rhamphorhynchoidea / Rhamphorhynchidae	1.2 m	0.5 m	1.5 kg	Piscivore	Kimmeridge Clay, Dorset, UK	Diamond-rudder tail	Theodore: "His long tail has a little leaf shape at the end to help him steer through the air."
Scaphognathus crassirostris	Late Jurassic	Rhamphorhynchoidea / Rhamphorhynchidae	0.9 m	0.5 m	1.2 kg	Omnivore / Small Vertebrates	Solnhofen, Germany	Rigid bone beak strike	Papa Smurf: "A stout-beaked flyer. This species played an important role in early pterosaur studies."
Sordes pilosus	Late Jurassic	Rhamphorhynchoidea / Rhamphorhynchidae	0.6 m	0.3 m	200 g	Insectivore / Amphibians	Karabastau Fm., Kazakhstan	Pycnofiber fur insulation	Winnie the Pooh: "A very furry little flying friend. He looks like he’s wearing a warm winter sweater."
Dsungaripterus weii	Early Cretaceous	Pterodactyloidea / Dsungaripteridae	3 m	1.2 m	15 kg	Durophage (Shellfish)	Lianmuqin Formation, China	Upturned shell-cracking beak	Garfield: "An upturned beak made for crushing clams. Wake me up when he finds a lasagna bed."
Caiuajara dobruskii	Early Cretaceous	Pterodactyloidea / Tapejaridae	2.3 m	0.8 m	8 kg	Frugivore	Goio-Erê Formation, Brazil	Shark-fin skull crest	Tigger: "That giant sail on his head makes him look like a colorful bouncy kite! TTFN!"
Tapejara wellnhoferi	Early Cretaceous	Pterodactyloidea / Tapejaridae	3.5 m	1.1 m	12 kg	Frugivore / Omnivore	Santana Formation, Brazil	Low-altitude rudder steering	Face: "Look at that giant sail! It’s shaped exactly like a sailboat fin!"
Pterodaustro guinazui	Early Cretaceous	Pterodactyloidea / Pterodaustriidae	2.5 m	1.2 m	10 kg	Filter Feeder (Plankton)	Lagarcito Formation, Argentina	1,000+ bristle teeth baleen	Baby Miss Piggy: "A flamingo-pterosaur! He strains his food through his teeth. How beautifully delicate."
Cearadactylus atrox	Early Cretaceous	Pterodactyloidea / Pterodactylidae	4 m	1.5 m	15 kg	Piscivore	Romualdo Formation, Brazil	Kinked interlocking fish trap	Hefty Smurf: "Those crooked front teeth look like a pair of absolute combat pliers!"
Pterodactylus antiquus	Late Jurassic	Pterodactyloidea / Pterodactylidae	1 m	0.3 m	1 kg	Piscivore / Invertebrates	Solnhofen, Germany	Straight-beak target strike	Clumsy Smurf: "Whoops! Watch out for that long pointy beak, I don't want it popping my hat!"
Pteranodon sternbergi	Late Cretaceous	Pterodactyloidea / Ornithocheiridae	6 m	2 m	25 kg	Piscivore	Niobrara Chalk, Kansas, USA	Backward-curved crest counterweight	Baby Gonzo: "Look at that magnificent crested skull structure! Now that is a beautifully weird bird."
Quetzalcoatlus lawsoni	Late Cretaceous	Pterodactyloidea / Ornithocheiridae	25.5 m	12.2 m	500,000 kg	Carnivore / Scavenger	Javelina Formation, Texas, USA	Terrestrial stork stalking	ALF: "A flying reptile the size of a horse that walks around on its wings? Talk about a bad dream."

🐀 Non-Reptiles & Synapsids ("Prehistoric Mammal Cousins")

• Class: Mammalia / Synapsida

SPECIES	TIME	ORDER / FAMILY	TALL	SIZE	WEIGHT	DIET	LOCATION / DIGSITE	SPECIAL SKILLS	CARTOON ALL-STARS'S COMMENTS
Alphadon halleyi	Late Cretaceous	Marsupialia / Alphadontidae	0.1 m	0.3 m	400 g	Omnivore / Insects	Hell Creek, Montana, USA	Arboreal branch grasping	Simon: "An early metatherian mammal that successfully coexisted directly beneath the massive dinosaurs."
Bulbasaurus phylloxyron	Late Permian	Dicynodontia / Geikiidae	0.3 m	0.8 m	15 kg	Herbivore	Balfour Formation, South Africa	Bulbous nasal razor beak	Tee Zeng: "Its name literally means 'Leaf Razor'! Sounds like a pocket monster is hiding in the Permian!"
Dimetrodon grandis	Early Permian	Pelycosauria / Sphenacodontidae	1.8 m	3.5 m	250 kg	Apex Carnivore	Texas Red Beds, USA	Sail-back thermal management	Bugs Bunny: "People always call this doc a dinosaur, but he's actually more related to us mammals!"
Lystrosaurus curvatus	Late Permian / Early Triassic	Dicynodontia / Lystrosauridae	0.4 m	1 m	90 kg	Herbivore	Beaufort Group, South Africa	Extinction burrow survival	Sid: "A shovel-faced survivor that made it through the biggest mass extinction ever. Modern sloths approve."

🦈 Prehistoric Fish & Ancient Sharks

• Class: Placodermi / Chondrichthyes

SPECIES	TIME	ORDER / FAMILY	DEPTH	SIZE	WEIGHT	DIET	LOCATION / DIGSITE	SPECIAL SKILLS	CARTOON ALL-STARS'S COMMENTS
Dunkleosteus amblyodoratus	Late Devonian	Arthrodira / Dinichthyidae	4 m	14 m	6 tons	Apex Carnivore	Cleveland Shale, Ohio, USA	Self-sharpening jaw plates	Michelangelo: "No teeth, just solid armor-plated blades for a mouth! Talk about a radical buzzsaw bite!"
Otodus megalodon	Miocene / Pliocene	Lamniformes / Otodontidae	4.5 m	15 m	50 tons	Apex Carnivore	Calvert Formation, Maryland, USA	40,000-pound bite pressure	Huey, Dewey, & Louie: "The absolute king of the oceans! Even a Tyrannosaurus rex wouldn't want to swim with this guy!"

If you want to keep expanding this world guide, let me know if you would like to:

• Look into the Cenozoic Ice Age megafauna (Mammoths, Sabertooths) with Sid and the team.
• Deep dive into a specific creature's fossil discovery history.
• Craft short scripts of these characters interacting directly with one of these sea or air monsters

Dinosaur Facts and Figures

Early Theropoda Scientific Catalog

Taxon & Specimen	Age & Time Period	Dimensions (Hip Height, Length, Mass)	Location Formation	Teodora Villavicencio's Comments (Legend Quest: Master of Myth) (VO: Annemarie Blanco)
Herrerasaurus ischigualastensis (Holotype: PVL 2566)	Late Triassic (Carnian, ~231.4 Ma)	Height: ~0.5 m Length: ~3.0–6.0 m Mass: ~200–350 kg	Formation: Ischigualasto Formation, Argentina	"Ale, look at those flexible lower jaw joints! This hyper-carnivorous basal beast shows that early predators were already mastering primitive kinetic skulls long before the Jurassic giants ever walked the valley."
Staurikosaurus pricei (Holotype: MCZ 4139)	Late Triassic (Carnian, ~233.2 Ma)	Height: ~0.8 m Length: ~2.25 m Mass: ~30 kg	Formation: Santa Maria Formation, Brazil	"Such a slender, agile hunter! Its short body and long tail tell me it relied entirely on quick, bounding strikes rather than brute force to catch prey in those ancient floodplains."
Abelisaurus comahuensis (Holotype: MCV 878)	Late Cretaceous (Campanian, ~80 Ma)	Height: ~2.5 m Length: ~7.0–9.0 m Mass: ~1.4–2.0 metric tons	Formation: Allen Formation, Argentina	"Look at the rugged skull ornamentation without horns! Even though we are missing most of its skeleton, its skull geometry screams specialized apex ambush predator."
Carnotaurus sastrei (Holotype: MACN-CH 894)	Late Cretaceous (Campanian–Maastrichtian, ~72 Ma)	Height: ~3.0 m Length: ~7.5–8.0 m Mass: ~1.3–2.1 metric tons	Formation: La Colonia Formation, Argentina	"The meat-eating bull with actual horns! And those ridiculously stubby arms make my archaeological tools look oversized. Still, its rigid, deep snout was built for high-speed slash-and-grab attacks!"
Ceratosaurus nasicornis (Holotype: USNM 4735)	Late Jurassic (Kimmeridgian–Tithonian, ~152 Ma)	Height: ~1.8 m Length: ~5.3–7.0 m Mass: ~500–980 kg	Formation: Morrison Formation, USA	"That prominent nasal horn and the osteoderms running down its back give it such a striking, dragon-like silhouette. A true classic of the Late Jurassic predator guild!"
Coelophysis bauri (Lectotype: AMNH 7224)	Late Triassic (Norian, ~208–201 Ma)	Height: ~0.5 m Length: ~3.0 m Mass: ~15–25 kg	Formation: Chinle Formation, USA	"Swarming bonebeds like Ghost Ranch prove these slender coelophysids hunted in packs! Those razor-sharp, serrated teeth were engineered for lightning-fast insect and small vertebrate snags."
Dilophosaurus wetherilli (Holotype: UCMP 37302)	Early Jurassic (Sinemurian, ~193 Ma)	Height: ~1.7 m Length: ~6.0–7.0 m Mass: ~400 kg	Formation: Kayenta Formation, USA	"Forget the fictional movie spitting venom—this crested apex predator of the Early Jurassic had a delicate, notched upper jaw that hints it might have specialized in fish or smaller, agile prey!"
Liliensternus liliensterni (Lectotype: MB.R.2175)	Late Triassic (Norian, ~210–201 Ma)	Height: ~1.0 m Length: ~5.15 m Mass: ~127 kg	Formation: Trossingen Formation, Germany	"A magnificent European basal neotheropod! Its pneumatic vertebrae and hollow limb bones show just how early evolutionary experimentation with lightweight, agile frames began."
Majungasaurus crenatissimus (Holotype: MNHN 1931-3)	Late Cretaceous (Maastrichtian, ~70–66 Ma)	Height: ~2.1 m Length: ~6.0–8.0 m Mass: ~1.1 metric tons	Formation: Maevarano Formation, Madagascar	"Cannibalism confirmed through deep tooth marks on its own kind! This short-snouted, dome-headed abelisaurid proves that Late Cretaceous island ecosystems were utterly brutal."

Tetanurae Scientific Catalog

Taxon & Specimen	Age & Time Period	Dimensions (Hip Height, Length, Mass)	Location Formation	Teodora Villavicencio's Comments (Legend Quest: Master of Myth) (VO: Annemarie Blanco)
Eustreptospondylus oxoniensis (Holotype: OUMNH J.13558)	Middle Jurassic (Callovian, ~165 Ma)	Height: ~1.5 m Length: ~4.6–6.0 m Mass: ~200–300 kg	Formation: Oxford Clay Formation, England	"A classic coastal dweller! Finding its lone skeleton washed up in marine clays suggests this megalosaurid might have scavenged along ancient shorelines or floated out to sea."
Marshosaurus bicentesimus (Holotype: UU VP 6389)	Late Jurassic (Kimmeridgian, ~155 Ma)	Height: ~1.0 m Length: ~5.0–6.0 m Mass: ~140–200 kg	Formation: Morrison Formation, USA	"Named in honor of Othniel Charles Marsh during the American bicentennial, this slender middle-tier predator quietly shared the Morrison landscape with giants like Allosaurus."
Metriacanthosaurus parkeri (Holotype: OUMNH J.12144)	Late Jurassic (Oxfordian, ~160 Ma)	Height: ~2.0 m Length: ~8.0 m Mass: ~1.0 metric ton	Formation: Oxford Clay Formation, England	"Look at those unusually tall neural spines on its back! They aren't quite a full sail like Spinosaurus, but they definitely gave it a striking, high-backed profile in the Jurassic mist."
Cryolophosaurus ellioti (Holotype: FMNH PR1821)	Early Jurassic (Pliensbachian, ~194 Ma)	Height: ~2.0 m Length: ~6.5 m Mass: ~465 kg	Formation: Hanson Formation, Antarctica	"The frozen crest of Antarctica! Finding a carnivorous theropod with a bizarre, transverse 'Elvis pompadour' crest right near the South Pole proves these dinosaurs adapted to polar darkness and seasonal chill."
Poekilopleuron bucklandii (Holotype: Destroyed in WWII)	Middle Jurassic (Bathonian, ~167 Ma)	Height: ~1.5 m Length: ~6.0 m Mass: ~300–400 kg	Formation: Marnes de Dives Formation, France	"One of the earliest named French dinosaurs! Even though the original holotype was lost to history during World War II, its legacy in early tetanuran taxonomy remains monumental."
Torvosaurus gurneyi (Holotype: ML 1100)	Late Jurassic (Kimmeridgian–Tithonian, ~150 Ma)	Height: ~2.5 m Length: ~10.0 m Mass: ~2.0 metric tons	Formation: Lourinhã Formation, Portugal	"The savage lion of Late Jurassic Europe! Its immensely thick teeth and massive arms meant it could easily contest kills with anything else roaming the Iberian floodplains."
Acrocanthosaurus atokensis (Holotype: SMU 74677)	Early Cretaceous (Aptian–Albian, ~113–110 Ma)	Height: ~3.0 m Length: ~11.5 m Mass: ~5.6–6.2 metric tons	Formation: Antlers Formation, USA	"That muscular ridge running down its spine wasn't a fragile sail—it anchored powerful muscle sheets for a devastating strike. A true apex terror of the early Cretaceous!"
Carcharodontosaurus iguidensis (Holotype: MNHN GDF 512)	Late Cretaceous (Cenomanian, ~95 Ma)	Height: ~3.5 m Length: ~10.0–12.0 m Mass: ~4.0 metric tons	Formation: Echkar Formation, Niger	"Shark-toothed terror of the Sahara! Those serrated blades were custom-built to slice deep chunks of flesh out of massive titanosaur prey in North African river systems."
Giganotosaurus carolinii (Holotype: MUCPv-Ch1)	Late Cretaceous (Cenomanian, ~97–96 Ma)	Height: ~3.7 m Length: ~12.2–13.2 m Mass: ~6.5–8.0 metric tons	Formation: Candeleros Formation, Argentina	"Bigger than T. rex by length, with a skull built like an absolute crushing machine. South America's supreme apex predator was a masterpiece of specialized carnivory!"
Allosaurus europaeus (Holotype: ML 415)	Late Jurassic (Kimmeridgian, ~152 Ma)	Height: ~2.9 m Length: ~12.0 m Mass: ~4.5 metric tons	Formation: Lourinhã Formation, Portugal / Morrison Formation, USA	"The European cousin of the classic American Allosaurus! Proving that this genus was a wildly successful trans-Atlantic hunter across varied Jurassic archipelagos."
Yangchuanosaurus zigongensis (Holotype: CV 00101)	Middle to Late Jurassic (Callovian–Oxfordian, ~165 Ma)	Height: ~2.2 m Length: ~8.0–11.0 m Mass: ~2.4 metric tons	Formation: Shaximiao Formation, China	"Asia's answer to Allosaurus! With a rugged nose horn and a heavily armored skull structure, it dominated the lush Jurassic ecosystems of Sichuan province."
Baryonyx walkeri (Holotype: NHMUK VP R9951)	Early Cretaceous (Barremian, ~125 Ma)	Height: ~2.0 m Length: ~7.5–8.5 m Mass: ~1.2–1.7 metric tons	Formation: Weald Clay Group, England	"That enormous, sickle-shaped thumb claw and crocodile-like snout make it unmistakably piscivorous. Scales of fossilized fish inside its ribcage give us a direct window into its diet!"
Spinosaurus aegyptiacus (Neotype: FSAC-CK 114)	Late Cretaceous (Cenomanian, ~95–93 Ma)	Height: ~4.0 m Length: ~14.0 m Mass: ~6.0–7.5 metric tons	Formation: Kem Kem Group, Morocco	"The ultimate river monster! With a paddle-like tail, dense bones for ballast, and a gigantic dorsal sail, it traded dry-land speed to become a fully aquatic ambush predator."
Suchomimus tenerensis (Holotype: MNHN GDF 500)	Early Cretaceous (Aptian–Albian, ~112 Ma)	Height: ~2.5 m Length: ~10.0–11.0 m Mass: ~3.5–5.2 metric tons	Formation: Elrhaz Formation, Niger	"The crocodile mimic of the African desert! Its long, slender jaws and powerful forelimbs were expertly engineered to pluck giant prehistoric coelacanths straight out of river channels."
Albertosaurus sarcophagus (Holotype: UAM Z-1)	Late Cretaceous (Maastrichtian, ~70 Ma)	Height: ~2.4 m Length: ~8.0–9.0 m Mass: ~1.7–2.0 metric tons	Formation: Horseshoe Canyon Formation, Canada	"A slender, lightning-fast tyrannosaurid! Bonebed discoveries up in Alberta suggest these sleek hunters may have lived and hunted in coordinated family groups."
Alioramus altai (Holotype: IGM 100/1844)	Late Cretaceous (Maastrichtian, ~70 Ma)	Height: ~1.2 m Length: ~5.0–6.0 m Mass: ~350 kg	Formation: Nemegt Formation, Mongolia	"Look at that low, slender snout covered in distinctive hornlets! It was like a miniature, hyper-agile cousin to Tarbosaurus, dodging the massive apex predators of the Gobi."
Daspletosaurus horneri (Holotype: MOR 590)	Late Cretaceous (Campanian, ~77–75 Ma)	Height: ~2.5 m Length: ~9.0 m Mass: ~2.5 metric tons	Formation: Two Medicine Formation, USA	"Fossil skin impressions show it lacked lips and instead had armored, crocodile-like facial scales filled with sensory nerves. Talk about an intimidating tactical hunter!"
Dryptosaurus aquilunguis (Holotype: ANSP 9995)	Late Cretaceous (Maastrichtian, ~66 Ma)	Height: ~2.0 m Length: ~7.5 m Mass: ~1.2 metric tons	Formation: Marshalltown Formation, USA	"An eastern North American oddity! Long before tyrannosaurs grew to colossal size, Dryptosaurus rocked bizarrely massive, hand-cleaving claws that set it apart from standard tyrannosauroids."
Gorgosaurus libratus (Holotype: NMC 2120)	Late Cretaceous (Campanian, ~76–75 Ma)	Height: ~2.4 m Length: ~8.5–9.0 m Mass: ~2.0–2.8 metric tons	Formation: Dinosaur Park Formation, Canada	"Slightly smaller and sleeker than T. rex, this apex predator shared the bustling Late Cretaceous Canadian floodplains with a staggering diversity of horned dinosaurs."
Moros intrepidus (Holotype: NCSM 33392)	Late Cretaceous (Cenomanian, ~96 Ma)	Height: ~0.4 m Length: ~1.2 m Mass: ~11 kg	Formation: Cedar Mountain Formation, USA	"The tiny harbinger of doom! This delicate, chicken-sized tyrannosauroid shows how small these apex rulers started before global climates shifted and allowed them to take over."
Nanotyrannus lethaeus (Holotype: CMNH 7541)	Late Cretaceous (Maastrichtian, ~66 Ma)	Height: ~1.5 m Length: ~5.0–6.5 m Mass: ~350–900 kg	Formation: Hell Creek Formation, USA	"Whether it's a valid pygmy tyrannosaurid or just an adolescent T. rex, those slender jaws and blade-like teeth are sleek enough to spark endless paleo-debates!"
Qianzhousaurus sinensis (Holotype: GMV V2153)	Late Cretaceous (Maastrichtian, ~66 Ma)	Height: ~2.0 m Length: ~6.3 m Mass: ~750 kg	Formation: Nanxiong Formation, China	"Pinocchio rex! Its extraordinarily long, slender snout proves that tyrannosaurids experimented with different feeding niches, hunting faster, more agile prey in Cretaceous Asia."
Tarbosaurus bataar (Holotype: PIN 551-1)	Late Cretaceous (Maastrichtian, ~70–66 Ma)	Height: ~3.2 m Length: ~10.0–12.0 m Mass: ~4.0–5.0 metric tons	Formation: Nemegt Formation, Mongolia	"The Asiatic king! Its rigid skull structure was custom-evolved to absorb massive impact forces while wrestling giant, neck-stretching sauropods in the Mongolian dust."
Tromerosaurus solumons (Hypothetical / Reference Taxon)	Late Cretaceous (Maastrichtian, ~66 Ma)	Height: ~2.8 m Length: ~9.5 m Mass: ~2.5 metric tons	Formation: Hell Creek Formation, USA	"A fascinating lesser-known entry in the tyrannosauroid record, representing the complex mosaic of mid-to-large theropods occupying the shrinking Cretaceous margins."
Tyrannosaurus rex (Holotype: FMNH PR2081 / Sue)	Late Cretaceous (Maastrichtian, ~68–66 Ma)	Height: ~3.6–5.0 m Length: ~12.3–15.0 m Mass: ~8.4–10.5 metric tons	Formation: Hell Creek Formation, USA / Frenchman Formation, Canada	"The undisputed tyrant lizard king! With a bite force capable of crushing solid bone and binocular vision sharper than a hawk's, it remains the ultimate icon of prehistory."

Coelurosauria Scientific Catalog

Taxon & Specimen	Age & Time Period	Dimensions (Hip Height, Length, Mass)	Location Formation	Teodora Villavicencio's Comments (Legend Quest: Master of Myth) (VO: Annemarie Blanco)
Coelurus fragilis (Holotype: YPM 2010)	Late Jurassic (Kimmeridgian, ~155 Ma)	Height: ~0.6 m Length: ~2.0 m Mass: ~13–20 kg	Formation: Morrison Formation, USA	"Such a graceful, slender little hunter! Othniel Charles Marsh named it for its hollow, fragile vertebrae, proving that early coelurosaurs were built like lightning-fast avian athletes."
Ornitholestes hermanni (Holotype: AMNH 619)	Late Jurassic (Kimmeridgian, ~154 Ma)	Height: ~0.7 m Length: ~2.0 m Mass: ~12–15 kg	Formation: Morrison Formation, USA	"That slight bump or possible nasal horn on its snout always sparked debate—was it for display? Either way, this bird-robber was darting through the Morrison ferns with incredible agility."
Compsognathus longipes (Holotype: BSP AS I 563)	Late Jurassic (Tithonian, ~150 Ma)	Height: ~0.25 m Length: ~1.0 m Mass: ~0.83–3.5 kg	Formation: Solnhofen Limestone, Germany	"The classic 'dainty jaw'! Famous for being preserved in fine German limestone with a tiny lizard trapped inside its belly. It shatters the myth that all dinosaurs were house-sized monsters."
Sinosauropteryx lingyuanensis (Holotype: NIGP 127587)	Early Cretaceous (Barremian, ~125 Ma)	Height: ~0.3 m Length: ~0.68–1.07 m Mass: ~0.55 kg	Formation: Yixian Formation, China	"The very first dinosaur found with preserved primitive feather filaments! Melanosome traces even let us know it rocked a reddish-brown coat with a striped tail."
Proceratosaurus bradleyi (Holotype: NHMUK R4860)	Middle Jurassic (Bathonian, ~167 Ma)	Height: ~0.6 m Length: ~3.0 m Mass: ~40 kg	Formation: Great Oolite Group, England	"Long before giant tyrannosaurs ruled, this little English predator was already sporting the early version of a midline nasal crest. A true ancestral pioneer!"
Yutyrannus huali (Holotype: ZCDM V5000)	Early Cretaceous (Aptian, ~125 Ma)	Height: ~2.5 m Length: ~9.0 m Mass: ~1.4 metric tons	Formation: Yixian Formation, China	"Feathered tyrannosauroids the size of a bear! Finding 30-foot apex predators covered in broad, filamentous 'dusted' feathers completely changed how we picture cold-climate hunters."
Archaeornithomimus asiaticus (Holotype: PIN 31-1)	Late Cretaceous (Campanian, ~75 Ma)	Height: ~1.3 m Length: ~3.3 m Mass: ~50 kg	Formation: Iren Dabasu Formation, China	"An ancient ostrich-mimic from the deserts of Inner Mongolia! Built for sheer speed, with long stride lengths that left modern roadrunners in the dust."
Deinocheirus mirificus (Holotype: MPC-D 100/127)	Late Cretaceous (Maastrichtian, ~70–69 Ma)	Height: ~6.0 m Length: ~15.0 m Mass: ~6.3–7.0 metric tons	Formation: Nemegt Formation, Mongolia	"The ultimate paleo-mystery solved! What started as just a pair of enormous 8-foot-long arms turned out to be a humped, duck-billed, mega-sized omnivore. Truly 'horrible hands'!"
Dromiceiomimus samueli (Holotype: UALVP 52631)	Late Cretaceous (Campanian, ~76 Ma)	Height: ~1.5 m Length: ~3.5 m Mass: ~100 kg	Formation: Dinosaur Park Formation, Canada	"Named for its striking resemblance to the modern emu! Its large eyes and sleek, toothless beak indicate it was a keen-sighted forager on the Canadian floodplains."
Gallimimus bullatus (Holotype: GI SPS 100/11)	Late Cretaceous (Maastrichtian, ~70 Ma)	Height: ~2.0 m Length: ~6.0 m Mass: ~440 kg	Formation: Nemegt Formation, Mongolia	"The chicken-mimic that stole the show in Jurassic Park! These massive flocking speedsters could outpace almost any predator in the Nemegt basin."
Ornithomimus velox (Holotype: YPM 542)	Late Cretaceous (Campanian, ~75 Ma)	Height: ~1.4 m Length: ~3.5–3.8 m Mass: ~100–150 kg	Formation: Dinosaur Park Formation, Canada	"One of North America's premier ostrich dinosaurs. Fossil quill knobs on its arms confirm it had a full fan of wing feathers used for display or brooding!"
Struthiomimus altus (Holotype: AMNH 5339)	Late Cretaceous (Campanian, ~76 Ma)	Height: ~1.4 m Length: ~4.3 m Mass: ~150 kg	Formation: Dinosaur Park Formation, Canada	"The ostrich mimic par excellence! With long, slender grasping hands and a specialized keratinous beak, it swept up plants, insects, and small critters with ease."
Avimimus nemegtensis (Holotype: PIN 3907/1)	Late Cretaceous (Campanian–Maastrichtian, ~70 Ma)	Height: ~0.5 m Length: ~1.5 m Mass: ~15 kg	Formation: Nemegt Formation, Mongolia	"Bird mimic supreme! Short-faced, toothless, and sporting a pygostyle tail, it looked remarkably like a ground-dwelling modern bird millions of years before its time."
Chirostenotes pergracilis (Holotype: NMC 8538)	Late Cretaceous (Campanian, ~75 Ma)	Height: ~0.9 m Length: ~2.8 m Mass:	Formation: Dinosaur Park Formation, Canada	"A bizarre caenagnathid oviraptorosaur with a toothless jaw, deep mandible, and weirdly fused claw bones. Every new bone we find adds to its puzzle!"
Conchoraptor gracilis (Holotype: GI SPS 100/20)	Late Cretaceous (Campanian, ~70 Ma)	Height: ~0.4 m Length: ~1.0–1.4 m Mass: ~20 kg	Formation: Djadokhta Formation, Mongolia	"Named after conch shells because scientists originally wondered if it crushed mollusks with its deep beak. Its light, pneumatic skull is a marvel of evolutionary engineering."
Elmisaurus rarus (Holotype: ZPAL MgD-I/17)	Late Cretaceous (Maastrichtian, ~70 Ma)	Height: ~0.8 m Length: ~2.0 m Mass: ~30 kg	Formation: Nemegt Formation, Mongolia	"Known famously from slender hand and foot bones, this rare oviraptorosaurian cousin glided silently through the ancient Asian forests."
Oviraptor philoceratops (Holotype: AMNH 6517)	Late Cretaceous (Campanian, ~75 Ma)	Height: ~0.5 m Length: ~1.6 m Mass: ~33–40 kg	Formation: Djadokhta Formation, Mongolia	"Framed unfairly as an 'egg thief' because its fossils were found near nests—which we later discovered were actually its own nests! A dedicated, brooding parent of the Gobi."
Protarchaeopteryx robusta (Holotype: IVPP V9653)	Early Cretaceous (Barremian, ~125 Ma)	Height: ~0.3 m Length: ~1.0 m Mass: ~1.5–2.0 kg	Formation: Yixian Formation, China	"Symmetrical pennaceous feathers on its tail and arms! It couldn't truly fly, but its display plumage was a dazzling preview of the avian revolution."

Advanced Theropods & Avialae Scientific Catalog

Taxon & Specimen	Age & Time Period	Dimensions (Hip Height, Length, Mass)	Location Formation	Teodora Villavicencio's Comments (Legend Quest: Master of Myth) (VO: Annemarie Blanco)
Erlikosaurus andrewsi (Holotype: GI SPS 100/111)	Late Cretaceous (Cenomanian–Turonian, ~90 Ma)	Height: ~2.0 m Length: ~4.5–6.0 m Mass: ~500 kg	Formation: Bayan Shireh Formation, Mongolia	"Look at those leaf-shaped teeth and tiny beak! This herbivorous therizinosaur used its pot-belly to ferment plants, completely defying what a meat-eater's family tree looks like."
Segnosaurus galbinensis (Holotype: GI SPS 100/82)	Late Cretaceous (Cenomanian–Turonian, ~93–89 Ma)	Height: ~2.5 m Length: ~6.0–7.0 m Mass: ~1.3 metric tons	Formation: Bayan Shireh Formation, Mongolia	"When scientists first found its weird pelvic bones and turtle-like lower jaws, they had no idea what it was. A bizarre, slow-moving browser of Cretaceous river basins!"
Therizinosaurus cheloniformis (Holotype: PIN 551-483)	Late Cretaceous (Maastrichtian, ~70 Ma)	Height: ~4.5–5.0 m Length: ~10.0 m Mass: ~5.0 metric tons	Formation: Nemegt Formation, Mongolia	"Those three-foot-long scythe claws look like a horror movie prop, but they were actually used to pull down high branches and foliage. The ultimate gentle giant of the Asian forests!"
Saurornithoides mongoliensis (Holotype: AMNH 6516)	Late Cretaceous (Campanian, ~75 Ma)	Height: ~0.6 m Length: ~2.0–3.0 m Mass: ~20–30 kg	Formation: Djadokhta Formation, Mongolia	"Lizard-bird of the Gobi! With an enlarged braincase and binocular vision, its hunting intelligence was leagues ahead of standard primitive predators."
Stenonychosaurus inequalis (Holotype: UCMZ 12)	Late Cretaceous (Campanian, ~76 Ma)	Height: ~0.9 m Length: ~2.4 m Mass: ~35–50 kg	Formation: Dinosaur Park Formation, Canada	"North America's stealthy nocturnal hunter! Those massive, pivoting eyes meant it could track down small mammals under the dim canopy of the Late Cretaceous."
Troodon formosus (Holotype: YPM 1903)	Late Cretaceous (Campanian, ~77–74 Ma)	Height: ~0.9 m Length: ~2.4 m Mass: ~45–50 kg	Formation: Judith River Group, USA	"Starting out life known from just a single, strangely serrated tooth, this iconic troodontid sparked decades of debate about dinosaur intelligence and sensory prowess."
Bambiraptor feinbergi (Holotype: AMNH FR 30556)	Late Cretaceous (Campanian, ~72 Ma)	Height: ~0.3 m Length: ~0.7–1.0 m Mass: ~2–3 kg	Formation: Two Medicine Formation, Canada / USA	"Named after the famous deer! This juvenile dromaeosaurid specimen gave us an incredible look at bird-like brain expansions and agile forest leaping."
Dakotaraptor steini (Holotype: PBMNH P.10.113.T)	Late Cretaceous (Maastrichtian, ~66 Ma)	Height: ~1.8 m Length: ~5.5 m Mass: ~250–350 kg	Formation: Hell Creek Formation, USA	"A giant, heavyweight raptor sharing the very same turf as T. rex! Those 9.5-inch quill knobs on its forearms prove it rocked full, majestic wings."
Deinonychus antirrhopus (Holotype: YPM 5205)	Early Cretaceous (Aptian, ~115–108 Ma)	Height: ~1.0 m Length: ~3.4 m Mass: ~73–100 kg	Formation: Cloverly Formation, USA	"The dinosaur that sparked the 'Renaissance'! Its lethal sickle claw and active posture completely revolutionized how the world viewed warm-blooded, dynamic dinosaurs."
Dromaeosaurus albertensis (Holotype: NMC 5711)	Late Cretaceous (Campanian, ~76 Ma)	Height: ~0.7 m Length: ~2.0 m Mass: ~15–20 kg	Formation: Dinosaur Park Formation, Canada	"The robust trailblazer of the Canadian badlands! Shorter-snouted and built with a heavier bite force than its sleeker raptor cousins."
Saurornitholestes sullivani (Holotype: SMP VP-1270)	Late Cretaceous (Campanian, ~75 Ma)	Height: ~0.5 m Length: ~1.8 m Mass: ~10 kg	Formation: Kirtland Formation, USA	"An agile, cat-sized hunter dashing through southwestern floodplains. Its exceptionally sharp senses made it a master of catching elusive prey."
Velociraptor osmolskae (Holotype: MPC-D 100/985)	Late Cretaceous (Campanian, ~75–71 Ma)	Height: ~0.5 m Length: ~2.0 m Mass: ~15 kg	Formation: Bayan Mandahu Formation, China	"The Asian counterpart to V. mongoliensis! Proof that these lightning-fast pack hunters ruled the dunes across multiple regions of the Gobi desert."
Microraptor gui (Holotype: IVPP V13352)	Early Cretaceous (Aptian, ~120 Ma)	Height: ~0.2 m Length: ~0.77–0.8 m Mass: ~1 kg	Formation: Jiufotang Formation, China	"The four-winged glider! With long, asymmetrical feathers on both its arms and its hind legs, it drifted gracefully from tree to tree in prehistoric Liaoning."
Archaeopteryx albersdoerferi (Holotype / Specimen: Bürgermeister-Müller Museum)	Late Jurassic (Tithonian, ~150 Ma)	Height: ~0.3 m Length: ~0.5 m Mass: ~0.8–1.0 kg	Formation: Solnhofen Limestone, Germany	"The ultimate transitional icon! Featuring teeth, a long bony tail, and full flight feathers, it bridges the gap between terrifying theropod dinosaurs and modern birds with absolute grace."

Sauropodomorpha (Prosauropoda) Scientific Catalog

Taxon & Specimen	Age & Time Period	Dimensions (Hip Height, Length, Mass)	Location Formation	Teodora Villavicencio's Comments (Legend Quest: Master of Myth) (VO: Annemarie Blanco)
Anchisaurus polyzelus (Holotype: YPM 1883)	Early Jurassic (Hettangian–Sinemurian, ~200–188 Ma)	Height: ~0.7 m Length: ~2.0–2.5 m Mass: ~27–50 kg	Formation: Portland Formation, USA	"One of the earliest dinosaur fossils ever found in North America! It could walk on two legs or four, showing the evolutionary transition toward true browsing giants."
Efraasia minor (Holotype: SMNS 12667)	Late Triassic (Norian, ~210 Ma)	Height: ~0.8 m Length: ~4.0–6.5 m Mass: ~100–130 kg	Formation: Löwenstein Formation, Germany	"A slender German prosauropod with long, grasping hands! Perfect for stripping down early Triassic vegetation before the super-sauropods took over."
Eoraptor lunensis (Holotype: PVSJ 512)	Late Triassic (Carnian, ~231 Ma)	Height: ~0.4 m Length: ~1.0–1.7 m Mass: ~10–17 kg	Formation: Ischigualasto Formation, Argentina	"The dawn plunderer! Sitting right at the root of the dinosaur family tree, showing us how small and nimble the common ancestor of both theropods and sauropods really was."
Massospondylus kaalae (Holotype: BP/1/4779)	Early Jurassic (Sinemurian, ~200–183 Ma)	Height: ~1.0 m Length: ~4.0–5.0 m Mass: ~150–300 kg	Formation: Elliot Formation, South Africa	"A classic South African long-neck! Its thumb claws were built like curved daggers, likely used for defense or gathering food down in ancient river valleys."
Melanorosaurus readi (Holotype: SAM-PK-3449)	Late Triassic to Early Jurassic (Norian–Sinemurian, ~216–200 Ma)	Height: ~2.5 m Length: ~8.0–12.0 m Mass: ~1.0–3.3 metric tons	Formation: Lower Elliot Formation, South Africa	"Look at that heavy, pillar-like limb structure! It represents the exact moment prosauropods started bulking up into true, quadrupedal sauropod titans."
Mussaurus patagonicus (Holotype: PVL 4097)	Late Triassic (Norian, ~215 Ma)	Height: ~0.3 m (Adults: ~1.5 m) Length: ~1.5 m (Adults: ~6.0 m) Mass: ~1.0 kg (Adults: ~1.0 metric ton)	Formation: El Tranquil Formation, Argentina	"The 'mouse lizard'! Famous for finding exquisite fossilized hatchlings nested together in Argentina, showing how these giants started life tiny."
Plateosaurus gracilis (Holotype: SMNS 13200)	Late Triassic (Norian, ~214–204 Ma)	Height: ~2.0 m Length: ~5.0–8.0 m Mass: ~600–700 kg	Formation: Trossingen Formation, Germany	"The great German swamp-dweller! Bonebeds packed with dozens of individuals prove they roamed in large herds across central Europe long before the Jurassic."
Riojasaurus incertus (Holotype: PVL 3808)	Late Triassic (Norian, ~227–213 Ma)	Height: ~2.5 m Length: ~6.6–10.0 m Mass: ~800–3,000 kg	Formation: Los Colorados Formation, Argentina	"A heavy, rigid-backed quadruped from Argentina! Its chunky legs and solid bones show it stayed firmly on all fours while browsing high foliage."
Thecodontosaurus antiquus (Holotype: BRSUG 26120)	Late Triassic (Rhaetian, ~205 Ma)	Height: ~0.6 m Length: ~2.0–2.5 m Mass: ~30–40 kg	Formation: Magnesian Conglomerate, England	"Bristol's very own ancient lizard! One of the first dinosaurs ever named in British paleontology, browsing through island-like archipelago rocks."
Yunnanosaurus youngi (Holotype: IVPP V20)	Early Jurassic (Sinemurian–Pliensbachian, ~200–190 Ma)	Height: ~2.0 m Length: ~6.0–7.0 m Mass: ~400–600 kg	Formation: Lufeng Formation, China	"Its spoon-shaped teeth were uniquely specialized for snipping and grinding plant matter, making it one of the most successful herbivores of early Jurassic China."
Smurfette smurfensis (Fictional Specimen: Village Mushroom Archive)	Holocene to Prehistoric Crossover Era	Height: ~0.05 m Length: ~0.05 m Mass: ~0.02 kg	Formation: Smurf Village Botanical Layer, Belzat Forest	"Well, now I've seen everything! A three-apple-tall blue wanderer exploring the sauropod tracks. Let's just hope Gargamel's pet cat Azrael doesn't try to hunt this little mythologist!"

Sauropoda Scientific Catalog

Taxon & Specimen	Age & Time Period	Dimensions (Hip Height, Length, Mass)	Location Formation	Teodora Villavicencio's Comments (Legend Quest: Master of Myth) (VO: Annemarie Blanco)
Alamosaurus sanjuanensis (Holotype: USNM 15560)	Late Cretaceous (Maastrichtian, ~69–66 Ma)	Height: ~12.0 m Length: ~26.0–30.0 m Mass: ~30–73 metric tons	Formation: Ojo Alamo Formation / Naashoibito Member, USA	"North America's last great sauropod! These colossal survivors walked right up to the end of the Cretaceous, dodging T. rex on the very edge of extinction."
Amargasaurus cazaui (Holotype: MACN-RN 1001)	Early Cretaceous (Barremian, ~129–122 Ma)	Height: ~2.5 m Length: ~9.0–10.0 m Mass: ~2.6 metric tons	Formation: La Amarga Formation, Argentina	"Look at those paired, needle-like neural spines streaming off its neck! They may have supported a double keratinous sail for visual display or defense."
Apatosaurus ajax (Holotype: YPM 1980)	Late Jurassic (Kimmeridgian–Tithonian, ~152 Ma)	Height: ~6.5 m Length: ~21.0–27.0 m Mass: ~16–22 metric tons	Formation: Morrison Formation, USA	"The classic whip-tailed gentle giant! Its tail could literally crack like a supersonic bullwhip to deter hungry allosaurids."
Barapasaurus tagorei (Holotype: GSI IMC K27/694)	Early Jurassic (Sinemurian–Pliensbachian, ~190–183 Ma)	Height: ~3.5 m Length: ~14.0 m Mass: ~10–14 metric tons	Formation: Kota Formation, India	"One of the earliest true sauropods! Named in honor of Rabindranath Tagore, this Indian pioneer shows how fast early long-necks scaled up in mass."
Brachiosaurus altithorax (Holotype: FMNH P 25107)	Late Jurassic (Kimmeridgian–Tithonian, ~154–153 Ma)	Height: ~9.0–14.0 m Length: ~20.0–26.0 m Mass: ~28–56 metric tons	Formation: Morrison Formation, USA / Kota Formation, India	"Built like a living giraffe-tower! With longer front legs than back legs, it browsed the highest conifer treetops that other herbivores couldn't even reach."
Camarasaurus supremus (Holotype: AMNH 5761)	Late Jurassic (Kimmeridgian–Tithonian, ~155–145 Ma)	Height: ~4.5 m Length: ~15.0–18.0 m Mass: ~15–23 metric tons	Formation: Morrison Formation, USA	"The most common sauropod in the Morrison quarry! Its blunt, box-like snout and spoon teeth were expert tools for chomping coarser Jurassic vegetation."
Cetiosaurus oxoniensis (Lectotype: OUMNH J.13605)	Middle Jurassic (Bathonian–Callovian, ~168–164 Ma)	Height: ~4.0 m Length: ~15.0–16.0 m Mass: ~15–25 metric tons	Formation: Chipping Norton Limestone / Rutland Formation, England	"The 'whale lizard'! One of the first dinosaurs ever scientifically described, giving 19th-century paleontologists their very first peek into England's prehistoric deep past."
Dicraeosaurus sattleri (Holotype: MB.R.MB.R.4332)	Late Jurassic (Kimmeridgian, ~150 Ma)	Height: ~3.0 m Length: ~12.0–14.0 m Mass: ~4.0–5.0 metric tons	Formation: Tendaguru Formation, Tanzania	"A short-necked, fork-spined African marvel! It traded extra neck length for a lightweight, highly maneuverable frame in the lush Tendaguru floodplains."
Diplodocus hallorum (Holotype: WDC-DHS-1 / formerly Seismosaurus)	Late Jurassic (Kimmeridgian–Tithonian, ~154–152 Ma)	Height: ~5.0 m Length: ~32.0–35.0 m Mass: ~12–15 metric tons	Formation: Morrison Formation, USA	"An astonishingly long creature! More than half its total length was just a slender, whip-like tail designed to keep Morrison predators at a very safe distance."
Dreadnoughtus schrani (Holotype: MPM-PV 1156)	Late Cretaceous (Campanian, ~77 Ma)	Height: ~16.0 m Length: ~26.0 m Mass: ~22–59 metric tons	Formation: Cerro Barcino Formation, Argentina	"Named after battleships because it 'fearing nothing'! With massive muscle scars etched into its bones, this titan was an absolute fortress on four legs."
Euhelopus zdanskyi (Holotype: PM U 236)	Early Cretaceous (Aptian–Albian, ~118–113 Ma)	Height: ~4.0 m Length: ~15.0 m Mass: ~15–20 metric tons	Formation: Mengyin Formation, China	"One of China's classic Cretaceous sauropods! Its elevated shoulders and uniquely curved skull made it a striking fixture of East Asian flood basins."
Mamenchisaurus sinocanadorum (Holotype: IVPP V.9404)	Late Jurassic (Oxfordian–Kimmeridgian, ~162–155 Ma)	Height: ~17.0 m Length: ~26.0–35.0 m Mass: ~12–25 metric tons	Formation: Shaximiao Formation, China	"Half its body length was pure neck! Holding the record for one of the longest necks in the animal kingdom, supported by an incredible web of pneumatic ribs."
Omeisaurus fuxiensis (Holotype: IVPP V.4401)	Middle to Late Jurassic (Bathonian–Oxfordian, ~165–155 Ma)	Height: ~4.5 m Length: ~20.0 m Mass: ~9–15 metric tons	Formation: Shaximiao Formation, China	"Named after Mount Omei, this magnificent Asian sauropod sported a long, whip-like tail and a robust ribcage designed for high-capacity plant digestion."
Opisthocoelicaudia skarzynskii (Holotype: ZPAL MgD-I/48)	Late Cretaceous (Maastrichtian, ~70 Ma)	Height: ~3.0 m Length: ~11.4–12.0 m Mass: ~8.4–10 metric tons	Formation: Nemegt Formation, Mongolia	"A heavy, tank-like titanosaur from the Nemegt basin that famously lacked a preserved skull. Its ball-and-socket tail vertebrae gave it incredible spinal flexibility!"
Patagotitan mayorum (Holotype: MPEF-PV 3400)	Late Cretaceous (Cenomanian, ~101 Ma)	Height: ~17.0 m Length: ~37.0 m Mass: ~57–70 metric tons	Formation: Cerro Barcino Formation, Argentina	"Titan of titans! Discovered in Argentine Patagonia, this colossus pushes the physical boundaries of how heavy a land animal could possibly grow."
Saltasaurus loricatus (Holotype: PVL 4017-91)	Late Cretaceous (Campanian–Maastrichtian, ~70–66 Ma)	Height: ~2.0 m Length: ~12.0–12.8 m Mass: ~7.0 metric tons	Formation: Lecho Formation, Argentina	"The armored sauropod! Who says giant long-necks couldn't defend themselves? It carried bony osteoderms embedded in its skin like a prehistoric tank."
Sauroposeidon proteles (Holotype: OMNH 53062)	Early Cretaceous (Aptian, ~110 Ma)	Height: ~18.0 m Length: ~27.0–34.0 m Mass: ~40–60 metric tons	Formation: Antlers Formation, USA	"The earthquake god lizard! Standing tall enough to look into a modern six-story building window, it was the absolute height of Early Cretaceous sauropod evolution."
Supersaurus vivianae (Holotype: WDC DMNH 25992)	Late Jurassic (Kimmeridgian–Tithonian, ~153 Ma)	Height: ~21.5 m Length: ~33.0–45.0 m Mass: ~31–50 metric tons	Formation: Morrison Formation, USA	"Super by name, super by nature! One of the longest dinosaurs ever recovered from the Morrison, stretching across landscapes with breathtaking scale."

Ornithischia (Cerapoda & Ornithopoda) Scientific Catalog

Taxon & Specimen	Age & Time Period	Dimensions (Hip Height, Length, Mass)	Location Formation	Teodora Villavicencio's Comments (Legend Quest: Master of Myth) (VO: Annemarie Blanco)
Abrictosaurus consors (Holotype: UCL BIV 50)	Early Jurassic (Hettangian–Sinemurian, ~200–190 Ma)	Height: ~0.3 m Length: ~1.2 m Mass: ~3 kg	Formation: Upper Elliot Formation, Lesotho	"Look at those prominent canine-like tusks! Even though they were plant-eaters, these heterodontosaurids weren't afraid to flash some dental bling when defending themselves."
Echinodon becklesii (Holotype: BMNH 48209)	Early Cretaceous (Berriasian, ~145 Ma)	Height: ~0.2 m Length: ~0.6 m Mass: ~1 kg	Formation: Purbeck Group, England	"The 'spiny tooth'! A tiny, pocket-sized ornithischian from England with unique self-sharpening teeth that let it clip stubborn prehistoric plants with surgical precision."
Fabrosaurus australis (Holotype: MNHN LES 1)	Early Jurassic (Hettangian–Sinemurian, ~200 Ma)	Height: ~0.3 m Length: ~1.0 m Mass: ~5 kg	Formation: Upper Elliot Formation, Lesotho	"A foundational name in early ornithischian history! Though fragmentary, its leaf-shaped cheek teeth proved that nimble little browsers were already diversifying rapidly."
Geranosaurus atavus (Holotype: SAM-PK-1871)	Early Jurassic (Hettangian–Sinemurian, ~200 Ma)	Height: ~0.4 m Length: ~1.2 m Mass: ~6 kg	Formation: Upper Elliot Formation, South Africa	"The 'crane lizard'! Named for its slender, bird-like lower jaw structure, showing how early South African herbivores adapted for selective feeding."
Heterodontosaurus tucki (Holotype: SAM-PK-3372)	Early Jurassic (Hettangian–Sinemurian, ~200–190 Ma)	Height: ~0.5 m Length: ~1.2 m Mass: ~2.5–5 kg	Formation: Upper Elliot Formation, South Africa	"The weird-toothed wonder! Complete with chisel-like front teeth, chewing cheek teeth, and sharp canine tusks. It's like a prehistoric rodent crossed with a sabertooth!"
Lesothosaurus diagnosticus (Holotype: BMNH R11956)	Early Jurassic (Hettangian–Sinemurian, ~200–196 Ma)	Height: ~0.4 m Length: ~1.0 m Mass: ~4–7 kg	Formation: Upper Elliot Formation, Lesotho / South Africa	"Lightning-fast and blindingly agile! This basal ornithischian zipped across southern Africa's arid plains on long, slender hind legs."
Pisanosaurus mertii (Holotype: PVL 2577)	Late Triassic (Carnian–Norian, ~228–216 Ma)	Height: ~0.3 m Length: ~1.0 m Mass: ~2.5 kg	Formation: Ischigualasto Formation, Argentina	"One of the oldest known ornithischians of all! Marking the very dawn of the bird-hipped lineage in the sun-baked floodplains of Argentina."
Callovosaurus leedsi (Holotype: BMNH R3165)	Middle Jurassic (Callovian, ~165 Ma)	Height: ~0.8 m Length: ~2.5 m Mass: ~50 kg	Formation: Oxford Clay Formation, England	"An elusive Middle Jurassic iguanodontian! Known from fragmentary fossils tucked away in English marine clays, giving us a rare glimpse into pre-Morrison herbivores."
Camptosaurus dispar (Holotype: YPM 1877)	Late Jurassic (Kimmeridgian–Tithonian, ~156–145 Ma)	Height: ~1.0 m Length: ~6.0–7.0 m Mass: ~780–800 kg	Formation: Morrison Formation, USA	"The sturdy, flexible runner of the Morrison! It could graze comfortably on all fours or stand tall on its hind legs to reach mid-level canopy shrubs."
Dryosaurus elderae (Holotype: YPM 1876)	Late Jurassic (Kimmeridgian–Tithonian, ~155–145 Ma)	Height: ~1.2 m Length: ~2.4–4.0 m Mass: ~70–100 kg	Formation: Morrison Formation, USA	"Built like a gazelle! With huge eyes and an aerodynamic snout, it relied entirely on blistering speed to outrun allosaurs and ceratosaurs."
Fulgurotherium australe (Holotype: BMNH R3717)	Early Cretaceous (Aptian–Albian, ~112–100 Ma)	Height: ~0.5 m Length: ~1.5 m Mass: ~15 kg	Formation: Griman Creek Formation, Australia	"The 'lightning beast' from down under! A small, swift hypsilophodontid darting through the ancient polar forests of southeastern Australia."
Hippodraco scutodens (Holotype: UMNH VP 20208)	Early Cretaceous (Valanginian, ~132 Ma)	Height: ~1.2 m Length: ~4.5 m Mass: ~300 kg	Formation: Cedar Mountain Formation, USA	"The horse-dragon! Named for its elongated horse-like facial profile, representing a fascinating early basal iguanodontian stepping stone in North America."
Hypsilophodon foxii (Holotype: BMNH R196)	Early Cretaceous (Barremian, ~130–125 Ma)	Height: ~0.5 m Length: ~1.5–2.0 m Mass: ~20 kg	Formation: Wessex Formation, England	"The classic nimble biped! For a long time, scientists thought it climbed trees, but its specialized beak and rigid tail prove it was an absolute ground-sprinter."
Iguanodon bernissartensis (Holotype: IRSNB 1536)	Early Cretaceous (Barremian–Aptian, ~126–122 Ma)	Height: ~4.5 m Length: ~9.0–11.2 m Mass: ~3.0–4.8 metric tons	Formation: Bernissart Clay / Wealden Group, Belgium	"The famous spiked thumb! Discovered packed by the dozens in a Belgian coal mine. That conical thumb spike was a lethal close-quarters weapon against predators."
Loncosaurus argentinus (Holotype: MACN A-52)	Late Cretaceous (Coniacian–Campanian, ~85 Ma)	Height: ~0.7 m Length: ~2.0 m Mass: ~30 kg	Formation: Bajo Barreal Formation, Argentina	"A mysterious Patagonian ornithopod! Known from sparse skeletal fragments, showing just how widespread these small-to-mid-sized herbivores were in South America."
Muttaburrasaurus langdoni (Holotype: QMF 61)	Early Cretaceous (Albian, ~105–100 Ma)	Height: ~2.0 m Length: ~7.0–8.0 m Mass: ~2.8 metric tons	Formation: Allaru Mudstone / Mackunda Formation, Australia	"Look at that hollow, swollen nasal arch on its snout! It likely acted as a resonating chamber to broadcast deep, booming calls across the Australian river plains."
Nanosaurus agilis (Holotype: YPM 1913)	Late Jurassic (Kimmeridgian–Tithonian, ~155 Ma)	Height: ~0.3 m Length: ~2.0 m Mass: ~10 kg	Formation: Morrison Formation, USA	"The dainty lizard! Othniel Charles Marsh's tiny basal ornithischian that scurried around the feet of towering Morrison sauropods."
Ouranosaurus nigeriensis (Holotype: MNHN GDF 300)	Early Cretaceous (Aptian–Albian, ~125–112 Ma)	Height: ~2.7 m Length: ~7.0–8.3 m Mass: ~2.2–4.0 metric tons	Formation: Elrhaz Formation, Niger	"A majestic sail-backed iguanodontian from the Sahara! Unlike Spinosaurus, its neural spines formed a broad, muscular hump or display sail across its back."
Parksosaurus warreni (Holotype: ROM 804)	Late Cretaceous (Maastrichtian, ~70–66 Ma)	Height: ~0.6 m Length: ~2.5 m Mass: ~45 kg	Formation: Horseshoe Canyon Formation, Canada	"Named after pioneering Canadian paleontologist William Parks! A sleek, big-eyed hypsilophodontid ducking through the closing chapters of the Cretaceous."
Probactrosaurus gobiensis (Holotype: PIN 2232-1)	Early Cretaceous (Albian–Cenomanian, ~105–95 Ma)	Height: ~1.8 m Length: ~6.0 m Mass: ~1.0 metric ton	Formation: Dzunbayan / Khukhtek Formation, Mongolia / China	"The evolutionary bridge to the giant duck-bills! Its advanced dental batteries and snout structure previewed the massive hadrosaur take-over."
Tenontosaurus dossi (Holotype: SMU 68462)	Early Cretaceous (Aptian–Albian, ~115–105 Ma)	Height: ~1.5 m Length: ~6.0–7.0 m Mass: ~1.0 metric ton	Formation: Antlers / Twin Mountains Formation, USA	"The ultimate prey package! Famous for fossil sites where multiple Deinonychus skeletons surround a single Tenontosaurus, showing complex predator-prey dynamics."
Thescelosaurus garbanii (Holotype: LACM 23845)	Late Cretaceous (Maastrichtian, ~66 Ma)	Height: ~1.0 m Length: ~3.5–4.0 m Mass: ~200–300 kg	Formation: Hell Creek Formation, USA	"The wonderful pebble-toothed herbivore! Some specimens even preserve fossilized skin and internal body armor rings, making it one of the best-understood last-minute survivors."
Valdosaurus canaliculatus (Holotype: BMNH R187)	Early Cretaceous (Valanginian–Barremian, ~140–125 Ma)	Height: ~0.6 m Length: ~2.0 m Mass: ~30 kg	Formation: Wessex Formation / Wealden Group, England	"Named after the Isle of Wight's ancient Valdean rocks! A fast-moving, slender dryosaurid skipping through European swamp forests."
Zephyrosaurus schaffi (Holotype: MCZ 4392)	Early Cretaceous (Aptian–Albian, ~115–110 Ma)	Height: ~0.5 m Length: ~1.8 m Mass: ~20 kg	Formation: Cloverly Formation, USA	"The western wind lizard! Sporting a remarkably rugged skull with distinct muscle bumps, suggesting it engaged in head-butting or species display rituals."

Hadrosauridae Scientific Catalog

Taxon & Specimen	Age & Time Period	Dimensions (Hip Height, Length, Mass)	Location Formation	Teodora Villavicencio's Comments (Legend Quest: Master of Myth) (VO: Annemarie Blanco)
Brachylophosaurus canadensis (Holotype: ROM 867)	Late Cretaceous (Campanian, ~76.5 Ma)	Height: ~2.5 m Length: ~7.0–9.0 m Mass: ~3.0–4.0 metric tons	Formation: Oldman / Judith River Formation, Canada / USA	"Look at that flat, bony paddle on top of its skull! It looks almost like a medieval helmet. Nicknamed 'Leonardo' because of incredible mummified fossil preservation with skin intact!"
Corythosaurus casuarius (Holotype: AMNH 5240)	Late Cretaceous (Campanian, ~77–75 Ma)	Height: ~2.8 m Length: ~9.0 m Mass: ~3.0–4.0 metric tons	Formation: Dinosaur Park Formation, Canada / Lance Formation, USA	"The helmet lizard! That hollow, semi-circular crest housed looping nasal passages that could trumpet haunting, resonant honks across the Cretaceous river valleys."
Edmontosaurus regalis (Holotype: NMC 2288)	Late Cretaceous (Maastrichtian, ~73–66 Ma)	Height: ~3.0 m Length: ~12.0–13.0 m Mass: ~4.0–9.0 metric tons	Formation: Horseshoe Canyon Formation, Canada / Lance Formation, USA	"One of the ultimate mega-herbivores of the late Cretaceous! Some mummified 'dinosaur mummy' specimens even preserve soft tissue duck-bills and fleshy head combs."
Hypacrosaurus stebingeri (Holotype: MOR 549)	Late Cretaceous (Campanian–Maastrichtian, ~75–67 Ma)	Height: ~3.0 m Length: ~9.1–10.7 m Mass: ~4.0 metric tons	Formation: Two Medicine Formation, USA / Dinosaur Park Formation, Canada	"The 'highest near lizard'! Fossil nesting grounds with eggs and tiny embryos show these massive social mothers lovingly cared for their hatchlings in sprawling colonies."
Kritosaurus navajovius (Holotype: AMNH 5799)	Late Cretaceous (Campanian, ~73 Ma)	Height: ~2.5 m Length: ~8.0–9.0 m Mass: ~3.0 metric tons	Formation: Kirtland Formation, USA	"The classic 'chosen lizard' of the American Southwest! Featuring a distinctive, slightly arched nasal hump that gave it a uniquely proud facial profile."
Lambeosaurus magnicristatus (Holotype: NMC 8705)	Late Cretaceous (Campanian, ~75 Ma)	Height: ~3.0 m Length: ~9.0–15.0 m Mass: ~3.5–5.8 metric tons	Formation: Dinosaur Park Formation, Canada	"That magnificent, axe-like hollow crest towering over its head is an engineering marvel! A true acoustic masterpiece of the Canadian badlands."
Maiasaura peeblesorum (Holotype: PU 22405)	Late Cretaceous (Campanian, ~76.7 Ma)	Height: ~2.5 m Length: ~7.0–9.0 m Mass: ~2.0–3.0 metric tons	Formation: Two Medicine Formation, USA	"The 'good mother lizard'! Discovering 'Egg Mountain' revolutionized paleontology by proving dinosaurs fed and raised their babies in communal nesting grounds like modern birds."
Olorotitan arharensis (Holotype: AEHM 2/845)	Late Cretaceous (Maastrichtian, ~72–66 Ma)	Height: ~3.1 m Length: ~8.0–12.0 m Mass: ~3.5–4.5 metric tons	Formation: Yuliangze Formation, Russia / China	"The giant swan of Asia! Its hollow crest was shaped like a broad, sweeping axe or fan, making it one of the most elegant and distinct lambeosaurines ever found."
Parasaurolophus walkeri (Holotype: ROM 768)	Late Cretaceous (Campanian, ~76–73 Ma)	Height: ~2.5 m Length: ~9.5–10.0 m Mass: ~2.5–3.5 metric tons	Formation: Dinosaur Park Formation, Canada	"The trombone of the Cretaceous! That iconic six-foot-long back-swept tube allowed it to broadcast low-frequency foghorn calls across dense swamps."
Saurolophus osborni (Holotype: AMNH 5220)	Late Cretaceous (Maastrichtian, ~70–66 Ma)	Height: ~3.0 m Length: ~9.0–12.0 m Mass: ~3.0–4.2 metric tons	Formation: Edmonton Group / Nemegt Formation, Canada / Mongolia	"Spiked lizard! Sporting a solid, backward-pointing bony spike on its head rather than a hollow tube. A trans-continental survivor bridging North America and Asia!"
Shantungosaurus giganteus (Holotype: GMV H V1853)	Late Cretaceous (Campanian–Maastrichtian, ~73–66 Ma)	Height: ~5.0–6.0 m Length: ~14.7–16.6 m Mass: ~13.0–16.0 metric tons	Formation: Wangshi Group, China	"The absolute heavyweight champion of the duck-bills! Growing as large as a small sauropod, proving that non-sauropod herbivores could reach colossal proportions."
Tsintaosaurus spinorhinus (Holotype: IVPP V725)	Late Cretaceous (Campanian–Maastrichtian, ~72–66 Ma)	Height: ~2.5 m Length: ~8.0–10.0 m Mass: ~2.5–3.0 metric tons	Formation: Wangshi Group, China	"The famous 'unicorn' duck-bill! Though early reconstructions mistakenly stuck a single vertical tube right on its nose like a unicorn horn, its crest is actually a forward-projecting ridge."

Pachycephalosauria Scientific Catalog

Taxon & Specimen	Age & Time Period	Dimensions (Hip Height, Length, Mass)	Location Formation	Teodora Villavicencio's Comments (Legend Quest: Master of Myth) (VO: Annemarie Blanco)
Dracorex hogwartsia (Holotype: TCM 2004.1.1)	Late Cretaceous (Maastrichtian, ~66 Ma)	Height: ~1.2 m Length: ~2.4–3.0 m Mass: ~50–75 kg	Formation: Hell Creek Formation, USA	"Named after Hogwarts because its flat, spiked skull looks straight out of Harry Potter! Though some paleontologists think it's just a juvenile Pachycephalosaurus, those dragon horns are pure fantasy come to life."
Goyocephale lattimorei (Holotype: GI SPS 100/1501)	Late Cretaceous (Campanian, ~75 Ma)	Height: ~0.6 m Length: ~1.8 m Mass: ~40 kg	Formation: Barun Goyot Formation, Mongolia	"A sleek Mongolian dome-head with a flat, wedge-shaped skull roof and fenestrae! It shows how early pachycephalosaurs experimented with skull ornamentation."
Homalocephale calathocercos (Holotype: GI SPS 100/1201)	Late Cretaceous (Campanian, ~75 Ma)	Height: ~0.6 m Length: ~1.8–3.0 m Mass: ~40–45 kg	Formation: Barun Goyot Formation, Mongolia	"The 'even head'! Featuring a flat, heavily ossified skull table and an unusually wide, basket-like pelvis that hints it might have given birth to live young or large clutches."
Micropachycephalosaurus hongtuyanensis (Holotype: IVPP V4688)	Late Cretaceous (Campanian, ~83–70 Ma)	Height: ~0.3 m Length: ~1.0 m Mass: ~5 kg	Formation: Wangshi Group, China	"Winner of the longest dinosaur name award! Despite its grandiose title, it's known from very fragmentary remains, but it represents the tiny, twig-walking ancestors of the clade."
Pachycephalosaurus wyomingensis (Holotype: USNM 12031)	Late Cretaceous (Maastrichtian, ~68–66 Ma)	Height: ~2.0 m Length: ~4.5–4.5 m Mass: ~300–450 kg	Formation: Hell Creek / Lance Formation, USA	"The thick-headed king of the Cretaceous! With a solid bone dome ten inches thick on top of its skull, it likely engaged in dramatic flank-butting or head-shoving duels for dominance."
Prenocephale prenes (Holotype: GI SPS 100/1001)	Late Cretaceous (Campanian–Maastrichtian, ~70 Ma)	Height: ~0.8 m Length: ~2.4 m Mass: ~60 kg	Formation: Nemegt Formation, Mongolia	"Slender and smart, with a dome-shaped head optimized for high-speed visual displays and social sparring across the Asian floodplains."
Stegoceras validum (Holotype: UALVP 2)	Late Cretaceous (Campanian, ~75–74 Ma)	Height: ~0.7 m Length: ~2.0–2.5 m Mass: ~40–50 kg	Formation: Dinosaur Park Formation, Canada	"The classic Canadian dome-head! Its pear-shaped skull and serrated cheek teeth show it was browsing on tender fruits, seeds, and foliage."
Stygimoloch spinifer (Holotype: UCMP 119684)	Late Cretaceous (Maastrichtian, ~66 Ma)	Height: ~1.5 m Length: ~3.0 m Mass: ~80–100 kg	Formation: Hell Creek Formation, USA	"Demon from the river Styx! Those long, intimidating horns ringing its domed skull made it look like a heavy-metal album cover brought to life."
Wannanosaurus yansiensis (Holotype: IVPP V4731)	Late Cretaceous (Campanian, ~80 Ma)	Height: ~0.3 m Length: ~0.6–1.0 m Mass: ~2–3 kg	Formation: Xiaoyan Formation, China	"One of the oldest and smallest known pachycephalosaurs from southern China, giving us clues into how these miniaturized dome-heads first evolved."

Ceratopsia Scientific Catalog

Taxon & Specimen	Age & Time Period	Dimensions (Hip Height, Length, Mass)	Location Formation	Teodora Villavicencio's Comments (Legend Quest: Master of Myth) (VO: Annemarie Blanco)
Auroraceratops rugosus (Holotype: Z LPM 1-0001)	Early Cretaceous (Aptian–Albian, ~125–100 Ma)	Height: ~0.4 m Length: ~1.25–2.0 m Mass: ~15–30 kg	Formation: Xiagou Formation, China	"Named after the dawn and the Roman goddess Aurora! Its deeply textured, rugged snout bones show that early basal ceratopsians were already using facial displays."
Bagaceratops rozhdestvenskyi (Holotype: ZPAL MgD-II/1)	Late Cretaceous (Campanian–Maastrichtian, ~80–70 Ma)	Height: ~0.3 m Length: ~1.0 m Mass: ~22 kg	Formation: Djadokhta Formation, Mongolia	"A small, smooth-skulled desert dweller from the Gobi! It represents a charming little branch of the horned-dinosaur family tree before mega-frills took over."
Centrosaurus apertus (Holotype: NMC 971)	Late Cretaceous (Campanian, ~76.5–75.5 Ma)	Height: ~1.8 m Length: ~6.0 m Mass: ~2.3 metric tons	Formation: Dinosaur Park Formation, Canada	"That massive, forward-curving nose horn and the wicked, hook-like spikes radiating from its frill made it look like a walking crown of thorns!"
Chasmosaurus belli (Holotype: NMC 491)	Late Cretaceous (Campanian, ~76–75 Ma)	Height: ~2.0 m Length: ~4.8–5.0 m Mass: ~1.5–2.0 metric tons	Formation: Dinosaur Park Formation, Canada	"The wide-frilled beauty! Its elongated, heart-shaped frill was packed with large window-like openings, likely used for species recognition and sun-basking rather than defense."
Leptoceratops gracilis (Holotype: NMC 8887)	Late Cretaceous (Maastrichtian, ~68–66 Ma)	Height: ~0.6 m Length: ~2.0 m Mass: ~68–90 kg	Formation: Edmonton Group / Scollard Formation, Canada	"A slender, toothless-beaked primitive ceratopsian that managed to stick around right until the very end of the Cretaceous period."
Lokiceratops rangiformis (Holotype: MSM P43231)	Late Cretaceous (Campanian, ~78 Ma)	Height: ~2.2 m Length: ~6.7 m Mass: ~5.0 metric tons	Formation: Judith River Formation, USA	"Named after the Norse god Loki! Featuring the most wildly asymmetric, blade-like horns and frill ornaments ever discovered on a horned dinosaur."
Microceratus gobiensis (Holotype: PIN 3146/1)	Late Cretaceous (Santonian–Campanian, ~85–75 Ma)	Height: ~0.2 m Length: ~0.6 m Mass: ~1–2 kg	Formation: Djadokhta Formation, Mongolia	"'Small horned face'! A tiny, agile herbivore scurrying through the prehistoric Gobi dunes like a scaled rabbit."
Montanoceratops cerorhynchus (Holotype: AMNH 5462)	Late Cretaceous (Campanian, ~70 Ma)	Height: ~0.8 m Length: ~2.5 m Mass: ~90–170 kg	Formation: St. Mary River Formation, USA	"Montana's very own horned oddity! Sporting a distinct, beak-like snout and a tiny nasal horn that hinted at the massive weaponry to come."
Nasutoceratops titusi (Holotype: UMNH VP 16800)	Late Cretaceous (Campanian, ~75 Ma)	Height: ~1.8 m Length: ~4.5–5.0 m Mass: ~1.5 metric tons	Formation: Kaiparowits Formation, USA	"Big-nosed horned face! Those insanely long, curved brow horns look straight out of a Texas longhorn steer, sweeping sideways to intimidate rivals."
Pachyrhinosaurus lakustai (Holotype: TMP 89.132.1)	Late Cretaceous (Campanian–Maastrichtian, ~73.5 Ma)	Height: ~2.0 m Length: ~6.0–8.0 m Mass: ~3.0–4.0 metric tons	Formation: Wapiti / Frenchman Formation, Canada / Hell Creek Formation, USA	"Instead of a sharp horn on its nose, it grew a massive, bumpy bone boss! Perfect for head-to-head shoving matches in the ancient Arctic mists."
Pentaceratops sternbergii (Holotype: AMNH 1625)	Late Cretaceous (Campanian, ~75–73 Ma)	Height: ~2.5 m Length: ~6.0–8.0 m Mass: ~2.5–5.0 metric tons	Formation: Kirtland Formation, USA	"Five-horned face! Well, technically two brow horns, two cheek horns, and a nose horn. It rocked one of the largest skull frills of any land animal in history."
Protoceratops hellenikorhinus (Holotype: IMM 95BM1)	Late Cretaceous (Campanian, ~75–71 Ma)	Height: ~0.6 m Length: ~1.8–2.0 m Mass: ~80–180 kg	Formation: Bayan Mandahu Formation, China	"The quintessential Gobi desert fossil! Famous for being found in pristine nesting grounds, cementing its legacy as a doting parent of the Cretaceous."
Psittacosaurus meileyingensis (Holotype: IVPP V 7389)	Early Cretaceous (Aptian, ~120–110 Ma)	Height: ~0.4 m Length: ~1.0–2.0 m Mass: ~10–20 kg	Formation: Ejinhoro Formation, China	"Parrot lizard! Complete with a high-curved beak, quill-like bristles on its tail, and gastroliths in its stomach to grind down tough ferns."
Sinoceratops zhuchengensis (Holotype: ZCDM V0010)	Late Cretaceous (Campanian, ~73 Ma)	Height: ~2.5 m Length: ~6.0–7.0 m Mass: ~2.0 metric tons	Formation: Wangshi Group, China	"China's magnificent centrosaurine! The only known horned dinosaur of its specific branch found outside of North America, sporting a gorgeous array of forward-curving frill hooks."
Styracosaurus ovatus (Holotype: USNM 11869)	Late Cretaceous (Campanian, ~75 Ma)	Height: ~1.8 m Length: ~5.0–5.5 m Mass: ~2.7 metric tons	Formation: Two Medicine Formation, USA	"A brilliant cousin to the classic Canadian Styracosaurus, marching across the southern ranges of the North American inland sea with a bristling halo of spikes."
Torosaurus latus (Holotype: YPM 1830)	Late Cretaceous (Maastrichtian, ~68–66 Ma)	Height: ~2.4 m Length: ~7.6–9.0 m Mass: ~4.0–6.0 metric tons	Formation: Hell Creek / Lance Formation, USA / Frenchman Formation, Canada	"Bull lizard! Boasting the largest skull of any known land vertebrate ever—its frill alone could span over eight feet long!"
Triceratops horridus (Holotype: USNM 4842)	Late Cretaceous (Maastrichtian, ~68–66 Ma)	Height: ~2.9–3.0 m Length: ~8.0–9.0 m Mass: ~6.0–12.0 metric tons	Formation: Hell Creek / Lance Formation, USA	"The ultimate three-horned face! With a battery of hundreds of self-sharpening teeth and triple-spear headgear, it stood its ground against T. rex until the very end."

Stegosauria Scientific Catalog

Taxon & Specimen	Age & Time Period	Dimensions (Hip Height, Length, Mass)	Location Formation	Teodora Villavicencio's Comments (Legend Quest: Master of Myth) (VO: Annemarie Blanco)
Chungkingosaurus jiangbeiensis (Holotype: CV 0072)	Late Jurassic (Oxfordian–Kimonian, ~160–155 Ma)	Height: ~1.2 m Length: ~3.0–4.0 m Mass: ~400–800 kg	Formation: Shaximiao Formation, China	"A smaller, feisty Chinese stegosaur! Packing an unusually large array of paired tail spikes known as a thagomizer, perfect for close-quarters self-defense."
Dacentrurus armatus (Holotype: BMNH R4601)	Late Jurassic (Kimmeridgian–Tithonian, ~154–150 Ma)	Height: ~2.0 m Length: ~7.0–8.0 m Mass: ~5.0 metric tons	Formation: Kimmeridge Clay Formation, England	"Europe's heavy armor! Instead of towering upright plates, it sported enormous, menacing spikes running all along its back and tail like a walking medieval fortress."
Gigantspinosaurus sichuanensis (Holotype: ZDM 0018)	Late Jurassic (Oxfordian, ~160 Ma)	Height: ~1.4 m Length: ~4.2 m Mass: ~700 kg	Formation: Shaximiao Formation, China	"Look at those ridiculously enlarged, wing-like shoulder spines! They stuck straight out from its scapulae, making it one of the most uniquely spiky dinosaurs in Sichuan."
Huayangosaurus taibaii (Holotype: IVPP V.6728)	Middle Jurassic (Bathonian–Callovian, ~165 Ma)	Height: ~1.0 m Length: ~4.5 m Mass: ~300–500 kg	Formation: Shaximiao Formation, China	"A foundational primitive stegosaur! It even retained premaxillary teeth in its upper jaw—something its later, more specialized cousins completely lost over time."
Kentrosaurus aethiopicus (Holotype: MB.R.1930)	Late Jurassic (Kimmeridgian, ~152 Ma)	Height: ~1.5 m Length: ~4.5–5.0 m Mass: ~1.0–1.5 metric tons	Formation: Tendaguru Formation, Tanzania	"The African spiked slider! With flat plates across its neck and long, dagger-like spikes trailing all the way down its tail and hips. A true architectural marvel of Tanzania."
Stegosaurus stenops (Holotype: USNM 4934)	Late Jurassic (Kimmeridgian–Tithonian, ~155–150 Ma)	Height: ~5.75 m Length: ~8.5–10.5 m Mass: ~2.6–4.7 metric tons	Formation: Morrison Formation, USA	"The ultimate roofed lizard! Those alternating double rows of bony plates on its back acted as thermal radiators and dazzling display structures against hungry Morrison allosaurs."
Tuojiangosaurus multispinus (Holotype: CV V205)	Late Jurassic (Oxfordian–Kimmeridgian, ~155 Ma)	Height: ~2.0 m Length: ~6.5–7.0 m Mass: ~1.5–2.0 metric tons	Formation: Shaximiao Formation, China	"Asia's classic multi-spined stegosaur! Featuring narrow, pear-shaped back plates and a powerful tail thagomizer that kept local carnivores guessing."

Ankylosauria Scientific Catalog

Taxon & Specimen	Age & Time Period	Dimensions (Hip Height, Length, Mass)	Location Formation	Teodora Villavicencio's Comments (Legend Quest: Master of Myth) (VO: Annemarie Blanco)
Ankylosaurus magniventris (Holotype: AMNH 5895)	Late Cretaceous (Maastrichtian, ~68–66 Ma)	Height: ~3.7 m Length: ~6.25–11.0 m Mass: ~4.8–8.0 metric tons	Formation: Hell Creek / Lance Formation, USA / Scollard Formation, Canada	"The fused lizard with the great belly! Packing a massive bony club on its tail that could shatter a T. rex's shin bone with a single swing. The ultimate tank of the Cretaceous!"
Euoplocephalus tutus (Holotype: NMC 0210)	Late Cretaceous (Campanian, ~76.5–67 Ma)	Height: ~1.5 m Length: ~6.0–7.0 m Mass: ~2.0–2.5 metric tons	Formation: Dinosaur Park Formation, Canada	"Well-armored and completely protected! Even its eyelids were covered in bony armor plates. When predators closed in, it dropped flat and became an unbiteable boulder."
Minmi paravertebra (Holotype: QM F10329)	Early Cretaceous (Aptian–Albian, ~120–110 Ma)	Height: ~0.4 m Length: ~2.0–3.0 m Mass: ~300 kg	Formation: Bungil Formation, Australia	"Australia's adorable little armored road-roller! Featuring horizontal bony rods along its spine that gave it unique spinal rigidity against local predators."
Nodosaurus textilis (Holotype: YPM 1815)	Early Cretaceous (Albian, ~105–100 Ma)	Height: ~1.2 m Length: ~5.5–6.0 m Mass: ~1.5–3.0 metric tons	Formation: Dakota / Mowry Shale Formation, USA	"The classic knot-lizard! Lacking a tail club, it relied instead on dense rows of interlocking osteoderms and menacing shoulder spikes for formidable defense."
Pinacosaurus grangeri (Holotype: AMNH 6523)	Late Cretaceous (Campanian, ~80–75 Ma)	Height: ~1.0 m Length: ~4.5–5.0 m Mass: ~1.0–1.9 metric tons	Formation: Djadokhta Formation, Mongolia / China	"Plank lizard of the Gobi! Famous for fossilized juvenile bonebeds that suggest these armored youngsters huddled together during desert dust storms."
Polacanthus foxii (Holotype: BMNH R175)	Early Cretaceous (Barremian, ~130–125 Ma)	Height: ~1.0 m Length: ~4.0–5.0 m Mass: ~1.0–2.0 metric tons	Formation: Wessex Formation, England	"A stunning British nodosaurid! Sporting a massive, heavy sacral shield over its hips and curved lateral spikes that made it a prickly hazard for European predators."
Sauropelta edwardsorum (Holotype: AMNH 3032)	Early Cretaceous (Aptian–Albian, ~115–110 Ma)	Height: ~1.5 m Length: ~5.0–7.6 m Mass: ~1.5–2.0 metric tons	Formation: Cloverly Formation, USA	"Look at those colossal, curved neck spikes sticking out like horns! This early North American nodosaurid was built to withstand the sharpest teeth of the Early Cretaceous."
Scelidosaurus harrisonii (Holotype: BMNH R1111)	Early Jurassic (Sinemurian, ~193 Ma)	Height: ~1.0 m Length: ~4.0 m Mass: ~250–450 kg	Formation: Charmouth Mudstone Formation, England	"The limb-lizard pioneer! One of the earliest and most complete armored dinosaurs ever discovered, bridging the gap between primitive ornithischians and full thyreophorans."
Scutellosaurus lawleri (Holotype: MNA V175)	Early Jurassic (Hettangian, ~196 Ma)	Height: ~0.3 m Length: ~1.2 m Mass: ~3–10 kg	Formation: Kayenta Formation, USA	"Little shield lizard! A tiny, long-tailed bipedal precursor covered in hundreds of small osteoderms, showing how armoring started on a miniature scale."
Talarurus plicatospineus (Holotype: PIN 3780-1)	Late Cretaceous (Coniacian–Santonian, ~89–83 Ma)	Height: ~1.2 m Length: ~5.0–6.0 m Mass: ~1.5 metric tons	Formation: Bayan Shireh Formation, Mongolia	"Basket-tail! Named for its complex woven network of bony tail reinforcement plates and a sturdy terminal club for swinging at unruly predators."

Pterosauria Scientific Catalog

Taxon & Specimen	Age & Time Period	Dimensions (Wingspan / Hip Height, Length, Mass)	Location Formation	Teodora Villavicencio's Comments (Legend Quest: Master of Myth) (VO: Annemarie Blanco)
Anurognathus ammoni (Holotype: BSP 1922 I 42)	Late Jurassic (Tithonian, ~150 Ma)	Wingspan: ~0.35 m Length: ~0.09 m Mass: ~20–40 g	Formation: Solnhofen Limestone, Germany	"The tiny, frog-mouthed aerial hunter! With a short skull and wide gape, it swooped through Jurassic forests snapping up insects like a prehistoric bat."
Dimorphodon macronyx (Holotype: BMNH R1034)	Early Jurassic (Sinemurian, ~195–190 Ma)	Wingspan: ~1.4 m Length: ~1.0 m Mass: ~1.5–2.0 kg	Formation: Blue Lias / Lower Lias, England	"Two forms of teeth! Featuring a massive, deep skull and a long, stiffened tail balanced with a terminal vane like an arrow feather."
Eudimorphodon ranzii (Holotype: MCSN 1770)	Late Triassic (Norian, ~215 Ma)	Wingspan: ~1.0 m Length: ~0.65 m Mass: ~150 g	Formation: Zorzino Limestone, Italy	"One of the oldest and most tooth-packed pterosaurs known! Those multi-cusped teeth were wicked little fish-traps over ancient Alpine lagoons."
Rhamphorhynchus etchesi (or R. muensteri) (Specimen: BMNH 37002)	Late Jurassic (Kimmeridgian–Tithonian, ~150 Ma)	Wingspan: ~1.0–1.8 m Length: ~1.26 m Mass: ~400–800 g	Formation: Solnhofen Limestone, Germany	"The quintessential long-tailed flyer! That stiff rudder at the end of its tail kept it perfectly balanced during high-speed banking turns over Jurassic archipelagos."
Scaphognathus crassirostris (Holotype: BSP AS VII 648)	Late Jurassic (Kimmeridgian–Tithonian, ~150 Ma)	Wingspan: ~0.9 m Length: ~0.6 m Mass: ~300 g	Formation: Solnhofen Limestone, Germany	"Thick-jawed snout! Its blunt, rounded skull profile gave it a very different bite compared to its needle-toothed Rhamphorhynchoid cousins."
Arthurdactylus conandoylei (Holotype: CPV 296)	Early Cretaceous (Aptian, ~115 Ma)	Wingspan: ~4.6 m Length: ~2.1 m Mass: ~10 kg	Formation: Romualdo Formation, Brazil	"Named after Sir Arthur Conan Doyle and his Lost World! A gorgeous Brazilian ornithocheiroid with massive wing bones sweeping across the skies."
Caiuajara dobruskii (Holotype: CP-V 1001)	Late Cretaceous (Cenomanian–Turonian, ~90 Ma)	Wingspan: ~0.65–2.35 m Length: ~1.0 m Mass: ~2.0 kg	Formation: Goioerê Formation, Brazil	"Discovered in a massive fossil bonebed containing dozens of individuals! Proving that these tapejarids lived, nested, and flew in large, social colonial flocks."
Cearadactylus atrox (Holotype: MN 5004-V)	Early Cretaceous (Aptian, ~112 Ma)	Wingspan: ~4.0 m Length: ~1.5 m Mass: ~6.0 kg	Formation: Romualdo Formation, Brazil	"Fierce jaws from Ceará! Its interlocking, rosette-tipped teeth were custom-built to grip slippery fish swimming through tropical Cretaceous seas."
Ctenochasma elegans (Holotype: BSP AS I 1045)	Late Jurassic (Tithonian, ~150 Ma)	Wingspan: ~0.25–0.4 m Length: ~0.3 m Mass: ~40 g	Formation: Solnhofen Limestone, Germany	"The comb-jawed filter feeder! Lined with hundreds of hair-thin, needle-like teeth that strained tiny crustaceans out of shallow Jurassic waters like a living sieve."
Dsungaripterus weii (Holotype: IVPP V.277)	Early Cretaceous (Valanginian–Aptian, ~130–112 Ma)	Wingspan: ~3.0–3.5 m Length: ~1.9 m Mass: ~9.0–13 kg	Formation: Tugulu Group, China	"An armored-skulled shell-cracker! With a low, bony crest and flat, peg-like back teeth designed for crushing hard-shelled clams and crabs along inland lake basins."
Ornithocheirus simus (Holotype: NHMUK 35412)	Early Cretaceous (Albian, ~110 Ma)	Wingspan: ~5.0 m Length: ~2.0 m Mass: ~15 kg	Formation: Cambridge Greensand, England	"The bird-hand of England! Famous for its distinctive, keel-like expansion on the tip of its upper snout used to slice through water spray during low-altitude fishing."
Pteranodon sternbergi (Holotype: FHSM VP 403)	Late Cretaceous (Coniacian–Santonian, ~85 Ma)	Wingspan: ~4.0–7.2 m Length: ~1.8 m Mass: ~20–30 kg	Formation: Niobrara Formation, USA	"The iconic soaring glider of the Western Interior Seaway! That sweeping upright crest served as an aerodynamic rudder while cruising over prehistoric waves."
Pterodaustro guinazui (Holotype: PVL 2571)	Early Cretaceous (Albian, ~105 Ma)	Wingspan: ~2.5 m Length: ~1.0 m Mass: ~2.0–3.0 kg	Formation: La Amarga / Lagarcito Formation, Argentina	"Look at those upward-curving bristle teeth on its lower jaw! It skimmed the water like a giant prehistoric flamingo, filtering microscopic organisms."
Quetzalcoatlus lawsoni (Holotype: TMM 41961-1)	Late Cretaceous (Maastrichtian, ~68–66 Ma)	Wingspan: ~5.0–25.5 m Length: ~3.0–14.0 m Mass: ~65–850,000 kg	Formation: Javelina Formation, USA	"The smaller cousin of the giant apex sky-lord! Even at 83 feet across, it stalked Cretaceous floodplains on stilt-like legs hunting small prey like a giant stork."
Tapejara wellnhoferi (Holotype: BSP 1993 I 3)	Early Cretaceous (Aptian, ~115–110 Ma)	Wingspan: ~1.5–2.5 m Length: ~0.8 m Mass: ~3.0 kg	Formation: Romualdo Formation, Brazil	"The parrot-beaked navigator! Sporting a massive, semi-circular bony and soft-tissue sagittal crest that made its head look remarkably like an exotic tropical bird."
Tropeognathus mesembrinus (Holotype: BSP 1987 I 47)	Early Cretaceous (Aptian, ~112 Ma)	Wingspan: ~8.2 m Length: ~3.0 m Mass: ~35–50 kg	Formation: Romualdo Formation, Brazil	"Keel-jawed titan of the southern seas! With massive semi-circular crests on the top and bottom of its snout to minimize hydrodynamic drag while dipping for fish."

Marine Reptiles & Prehistoric Megafauna Scientific Catalog

Taxon & Specimen	Age & Time Period	Dimensions (Flippers / Height, Length, Mass)	Location Formation	Teodora Villavicencio's Comments (Legend Quest: Master of Myth) (VO: Annemarie Blanco)
Mesosaurus tenuidens (Holotype: MNHN 1900-1)	Early Permian (Artinskian, ~290–275 Ma)	Height / Width: ~0.1 m Length: ~1.0 m Mass: ~3–5 kg	Formation: Irati Formation, Brazil / Whitehill Formation, South Africa	"A tiny, slender pioneer of the aquatic realm! Its long, needle-filled snout acted like a fine-toothed comb to strain tiny swimming crustaceans in inland Permian lakes."
Nothosaurus giganteus (Holotype: SMNS 5932)	Middle Triassic (Anisian–Ladinian, ~240–230 Ma)	Height / Width: ~0.8 m Length: ~4.0–5.2 m Mass: ~200–500 kg	Formation: Muschelkalk, Germany / Grenzbitumen Zone, Switzerland	"The ultimate semi-aquatic ambush predator! With webbed feet and interlocking needle teeth, it hunted like a prehistoric seal along the margins of the Tethys Sea."
Eurhinosaurus huenei (Holotype: GPIM 1324)	Early Jurassic (Toarcian, ~182–175 Ma)	Height / Width: ~1.5 m Length: ~6.0–7.0 m Mass: ~1.0 metric ton	Formation: Posidonia Shale, Germany	"Look at that bizarre, exaggerated upper bill! It was twice as long as the lower jaw and lined with teeth, used to slash through schools of ancient squid and fish."
Ichthyosaurus conybeari (Holotype: BMNH 2149)	Early Jurassic (Sinemurian–Pliensbachian, ~199–189 Ma)	Height / Width: ~1.0 m Length: ~2.0 m Mass: ~90–100 kg	Formation: Blue Lias Formation, England	"The classic 'fish lizard'! Streamlined like a dolphin with giant, dinner-plate eyes that peered into the dark, murky depths of the Early Jurassic seas."
Ophthalmosaurus icenicus (Holotype: CAMSM J35160)	Late Jurassic (Kimmeridgian–Tithonian, ~165–150 Ma)	Height / Width: ~1.2 m Length: ~4.0–6.0 m Mass: ~900–1,000 kg	Formation: Oxford Clay / Kimmeridge Clay, England	"Eye lizard supreme! Those massive, scleral-ringed eyes were larger than dinner plates, built for deep-diving hunts in total darkness after squids and cephalopods."
Shonisaurus popularis (Holotype: USNM 21103)	Late Triassic (Norian, ~210 Ma)	Height / Width: ~3.0 m Length: ~15.0 m Mass: ~30.0 metric tons	Formation: Luning Formation, Nevada, USA	"Nevada's colossal Triassic leviathan! One of the very first giant ichthyosaurs, moving through ancient deep waters with massive, whale-like grace."
Attenborosaurus conybeari (Holotype: BMNH R1338)	Early Jurassic (Sinemurian, ~195 Ma)	Height / Width: ~2.0 m Length: ~5.0 m Mass: ~500 kg	Formation: Charmouth Mudstone Formation, England	"Named after the legendary Sir David Attenborough! A stunning, short-necked plesiosaur with beautifully preserved skin impressions found in the UK."
Cryptoclidus richardsoni (Holotype: CAMSM J.46988)	Late Jurassic (Callovian, ~165–160 Ma)	Height / Width: ~1.5 m Length: ~3.0–4.0 m Mass: ~800 kg	Formation: Oxford Clay Formation, England	"Hidden clavicle! Featuring a flexible, slender neck and a mouth full of interlocking teeth designed to sweep through the sea floor scooping up soft prey."
Dolichorhynchops herschelensis (Holotype: TMP 89.36.1)	Late Cretaceous (Campanian, ~80–75 Ma)	Height / Width: ~1.2 m Length: ~3.0–3.5 m Mass: ~300–400 kg	Formation: Bearpaw Formation, Canada / Niobrara, USA	"Long-nosed face! A nimble, short-necked polycotylid pliosaur that zoomed through the Western Interior Seaway snapping up fast fish."
Elasmosaurus platyurus (Holotype: ANSP 10081)	Late Cretaceous (Campanian, ~80.5 Ma)	Height / Width: ~2.5 m Length: ~10.3–14.0 m Mass: ~2.0–3.0 metric tons	Formation: Pierre Shale, USA	"Neck-lizard extraordinaire! With over 70 vertebrae making up half its total length, its body was essentially a floating submarine beneath that snake-like neck."
Kronosaurus queenslandicus (Holotype: QMF 1819)	Early Cretaceous (Albian, ~120–100 Ma)	Height / Width: ~3.0 m Length: ~9.0–10.5 m Mass: ~10.6–12.0 metric tons	Formation: Wallumbilla Formation / Toolebuc Formation, Australia	"Named after Kronos the Titan! Boasting a skull over nine feet long packed with banana-sized teeth capable of crushing any marine rival in the Australian inland seas."
Liopleurodon ferox (Holotype: Specimen lost; neotype OUMNH J.27245)	Late Jurassic (Callovian–Kimmeridgian, ~160–155 Ma)	Height / Width: ~2.5 m Length: ~5.0–7.0 m Mass: ~1.0–1.7 metric tons	Formation: Oxford Clay Formation, England / France	"Smooth-sided teeth! The apex terror of the Jurassic Oxfordian seas, sweeping its massive flippers to ambush prey with terrifying speed."
Plesiosaurus dolichodeirus (Holotype: NHMUK R1336)	Early Jurassic (Sinemurian, ~199–190 Ma)	Height / Width: ~1.5 m Length: ~3.5 m Mass: ~450 kg	Formation: Blue Lias Formation, England	"The classic fossil that started the plesiosaur craze! Mary Anning found specimens that showed the world how these four-flippered swimmers navigated ancient waters."
Trinacromerum kirki (Holotype: NMC 1494)	Late Cretaceous (Cenomanian–Turonian, ~95–90 Ma)	Height / Width: ~1.2 m Length: ~3.0 m Mass: ~250 kg	Formation: Carlile Shale / Dakota Formation, USA	"Three-pointed femur! A sleek, torpedo-bodied pliosaur built for fast acceleration while chasing schools of ancient fish."
Clidastes propython (Holotype: YPM 1297)	Late Cretaceous (Coniacian–Campanian, ~87–82 Ma)	Height / Width: ~0.6 m Length: ~2.0–4.0 m Mass: ~50–100 kg	Formation: Niobrara Formation, USA	"The smallest and most slender mosasaur! It slithered through coastal shallows like an aquatic monitor lizard, hunting fish with lightning speed."
Jormungandr walhallaensis (Holotype: UND 11129)	Late Cretaceous (Campanian, ~80 Ma)	Height / Width: ~0.8 m Length: ~7.0 m Mass: ~800 kg	Formation: Pembina Member / Pierre Shale, USA	"Named after the Midgard serpent from Norse mythology! A transitionary mosasaur showing key evolutionary links between smaller and giant forms."
Megalania priscus (Varanus priscus) (Syntype specimens)	Pleistocene (Early–Late Pleistocene, ~1.5 Ma – 50,000 years ago)	Height / Width: ~1.0 m Length: ~5.5–7.0 m Mass: ~500–1,940 kg	Formation: Pleistocene Alluvial Deposits, Australia	"The giant Australian land monitor! While not strictly marine, this colossal terrestrial apex predator ruled the Outback rivers and billabongs alongside early humans."
Mosasaurus beaugei (Specimen specimens from phosphates)	Late Cretaceous (Maastrichtian, ~70–66 Ma)	Height / Width: ~3.0 m Length: ~12.0–15.0 m Mass: ~14.0 metric tons	Formation: Oulad Abdoun Basin, Morocco	"The Moroccan ocean lord! A massive, heavy-skulled apex mosasaur that ruled the shallow phosphate seas of North Africa right up to the end of the Cretaceous."
Tylosaurus bernardi (Holotype: IRSNB R22)	Late Cretaceous (Campanian–Maastrichtian, ~85–66 Ma)	Height / Width: ~3.0 m Length: ~12.0–14.0 m Mass: ~10.0–12.0 metric tons	Formation: Niobrara / Pierre Shale, USA / Smoky Hill Chalk	"The battering ram of the Western Interior Seaway! Sporting an elongated, bone-reinforced snout used to ram and stun rival marine reptiles before devouring them."
Dunkleosteus amblyodoratus (Holotype: CMNH specimens)	Late Devonian (Frasnian–Famennian, ~380–358 Ma)	Height / Width: ~3.2 m Length: ~4.0–14.0 m Mass: ~30.0 metric tons	Formation: Cleveland Shale / Ohio Shale, USA	"The armored terror of the Devonian! Instead of teeth, it possessed self-sharpening bony jaw plates that could slice through shark armor like paper."
Otodus megalodon (Syntype dental specimens)	Miocene–Pliocene (Burdigalian–Piacenzian, ~23–3.6 Ma)	Height / Width: ~3.5 m (fin height) Length: ~15.0–20.0 m Mass: ~50.0–60.0 metric tons	Formation: Global marine deposits (Calvert Cliffs, USA; Gatun Formation, Panama)	"The undisputed megatooth superstar of the prehistoric oceans! A colossal, whale-hunting shark that dominated the global seas before fading into extinction."

Synapsids & Prehistoric Mammals Scientific Catalog

Taxon & Specimen	Age & Time Period	Dimensions (Height, Length, Mass)	Location Formation	Teodora Villavicencio's Comments (Legend Quest: Master of Myth) (VO: Annemarie Blanco)
Dimetrodon grandis (Holotype: MCZ 1351)	Early Permian (Cisuralian, ~298–272 Ma)	Height / Sail: ~1.0–1.7 m Length: ~3.2–3.5 m Mass: ~110–250 kg	Formation: Clear Fork / Arroyo Formation, USA	"Not a dinosaur! This magnificent sail-backed synapsid is actually more closely related to you and me than to T. rex. That giant neural-spine sail was likely used for thermoregulation and visual displays!"
Bulbasaurus phylloxyron (Holotype: BP/1/7454)	Late Permian (Lopingian, ~255 Ma)	Height: ~0.25 m Length: ~0.6–1.0 m Mass: ~10–15 kg	Formation: Teekloof Formation / Beaufort Group, South Africa	"Named after the Pokémon Bulbasaur because of its bulbous, leaf-cutting snout! A charming little dicynodont with tusk-like premaxillae that browsed on late Permian foliage."
Lystrosaurus curvatus (Holotype: AMNH 5556)	Late Permian to Early Triassic (~252–247 Ma)	Height: ~0.3–0.4 m Length: ~0.6–1.2 m Mass: ~10–40 kg	Formation: Fremouw Formation, Antarctica / Beaufort Group, South Africa	"The ultimate survivor of the End-Permian extinction! This barrel-chested, shovel-beaked dicynodont made up over 90 percent of all land vertebrate fossils in some Triassic layers."
Alphadon halleyi (Holotype: UCMP 50570)	Late Cretaceous (Maastrichtian, ~70–66 Ma)	Height / Width: ~0.05 m Length: ~0.15–0.2 m Mass: ~50–100 g	Formation: Hell Creek / Lance Formation, USA	"A tiny, shrew-like metatherian mammal scurrying underfoot while Triceratops and T. rex walked the earth! Proving that our furry mammalian ancestors were right there in the shadow of the dinosaurs."

External links

• 100 Million B.C. Archived 2015-05-13 at the Wayback Machine at The Asylum
• 100 Million BC on IMDb Search this movie on

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