Dinosaur age
From EverybodyWiki Bios & Wiki
This transcript reimagines the classic "Cartoon All-Stars to the Rescue" opening, set within the American Museum of Natural History, featuring the updated 2026-era voice cast and characters you specified.
Scene: The Hall of Saurischian Dinosaurs
Late Night. The museum is silent, shadows stretching across the T-Rex skeleton.
MICHAEL (14, looking nervous, clutching a small bag):
I don’t know why I’m here. It’s just... one hit. To take the edge off. The city is too loud, the school is too much...
(He sits on a bench beneath the towering T-Rex. He pulls out a joint and a lighter. Suddenly, the museum’s motion sensors don't go off, but the exhibits begin to glow.)
ALF:
(Popping out from behind a Triceratops skull)
Hey, kid! You got any cats in that bag? No? Then put that firestick away. It smells worse than a Melmacian swamp-rat!
MICHAEL:
What the—? An alien?
GARFIELD:
(Lying lazily on the base of a Brontosaurus)
Technically, he’s an annoyance. I’d help you, but it’s not Monday and I haven't had my lasagna. Though, seeing your brain turn to mush might be mildly entertaining.
ALVIN:
(Sprinting down the T-Rex’s spine)
Mush is right! Michael, you’re making a huge mistake!
SIMON & THEODORE:
(Sliding down after him)
SIMON: Statistically speaking, your cognitive functions are about to nose-dive.
THEODORE: And it's really scary, Michael!
MICHAEL:
You’re... you’re just drawings! I’m hallucinating already!
BUGS BUNNY:
(Leaning against a marble pillar, munching a carrot)
Eh, what’s up, doc? Aside from your heart rate? You look a little peaked.
DAFFY DUCK:
(Waddling up, indignant)
It’s despicable! Pronounceable! Utterly... dis-herb-able! You’re ruining a perfectly good museum trip with that wacky weed!
MICHAEL:
Get lost! All of you!
(Michael runs toward the Hall of Ocean Life, passing the giant Blue Whale.)
PAPA SMURF:
(Stepping out from a dioramas)
Michael, stop! Running won’t solve the darkness inside you.
HEFTY & BRAINY:
HEFTY: You gotta be strong enough to say no, kid!
BRAINY: As Papa Smurf always says, "A brain on drugs is like a Smurfberry in a blender!"
MICHAEL:
(Stumbling near the African Mammals)
Leave me alone!
OPTIMUS PRIME:
(His voice booming through the hall as he shifts from a display truck into robot mode)
Michael. Narcotics are a threat to the spark within you. Freedom is the right of all sentient beings, but you are enslaving yourself to a substance.
MICHAEL:
Even the truck is talking...
BLUEY & BINGO:
(Playing "Keepy Uppy" with a discarded balloon nearby)
BLUEY: Oh no! Is Michael doing a "Bad Choice"?
BINGO: It's not a very fun game, is it?
MICHAEL:
(Panic setting in, he ducks into a side room filled with smoke)
I just need to hide... I just need a light...
(A shadowy figure emerges from the fog. It's SMOKEY, a personification of the drug smoke, swirling with a malevolent grin.)
SMOKEY:
That’s right, Michael. Don't listen to the colorful toys. They’re just... imagination. I’m the only one who can make the world feel soft. Go ahead... light it up.
The Intervention Continues...
- POOH & TIGGER: (Peeking from behind a totem pole) "Oh, bother, Michael. That smoke looks rather rumbly in the tumbly—and not the good kind!"
- MICHELANGELO: (Skating past on the railing) "Whoa, dudette! That Smokey guy is a total buzzkill. Your brain is a temple, man, don't graffiti it!"
- DAWN (POKÉMON): "Piplup and I know about pressure, Michael, but this isn't the way to win your battles!"
- RATCHET & CLANK: (Scanning Michael with a gadget) "Warning: Neurotransmitter levels are reaching critical instability. Michael, you need a reboot!"
MICHAEL: (Looking at the assembly of heroes)
Why do you care? You're just... characters!
WALLACE:
(Adjusting his tie)
Well, we might be "characters," lad, but the danger you're in is as real as a giant Wensleydale!
SLIMER:
(Flying through Michael, leaving a trail of ectoplasm)
"Bleah! No drugs! Gross! Slime is better!"
SMOKEY:
(Hissing)
Ignore them, Michael! One puff and they all disappear...
MICHAEL:
(Looking at the lighter, then at the vast array of icons watching him with concern)
I... I don't know if I can stop.
THEA & GERONIMO STILTON:
THEA: You have the heart of a hero, Michael!
GERONIMO: It’s a "fabumouse" idea to just... put it down!
Genus List for Holtz (2026): Marine Reptiles & Ancient Predators
| Genus | Name Meaning | Age | Time | Diet | Height/Depth | Length | Weight | Author | Region / Formation | Cartoon All-Stars's Comments/Facts |
| Archelon ischyros | "Ruling turtle" | 70 Ma | Late Cretaceous | Omnivore | 1.0 m | 4.6 m | 2,200 kg | Wieland (1896) | USA (Pierre Shale) | Garfield: "A giant turtle with a leathery shell. He’s basically a moving island. I can respect a guy who brings his house everywhere." |
| Dunkleosteus amblyodoratus | "Dunkle's bone" | 360 Ma | Late Devonian | Carnivore | 3.5 m | 14.0 m | 6,000 kg | Carr (2010) | USA (Cleveland Shale) | Daffy Duck: "He doesn't even have teeth—just giant sharpened bone plates! One snap and—gulp—it's lights out! It's despicable!" |
| Elasmosaurus platyurus | "Thin plate lizard" | 80 Ma | Late Cretaceous | Piscivore | 2.0 m | 10.3 m | 2,000 kg | Cope (1868) | USA (Pierre Shale) | Dawn: "His neck is so long it has 72 vertebrae! He looks like a graceful swan swimming through the deep blue sea." |
| Ichthyosaurus conybeari | "Fish lizard" | 190 Ma | Early Jurassic | Piscivore | 0.5 m | 2.0 m | 90 kg | Lydekker (1888) | UK (Blue Lias) | Bluey: "He looks just like a dolphin, but he’s a reptile! Nature is just playing a big game of dress-up, for real life!" |
| Jormungandr walhallaensis | "Midgard Serpent" | 80 Ma | Late Cretaceous | Carnivore | 1.0 m | 7.0 m | 1,500 kg | Lively (2023) | USA (Pierre Shale) | Optimus Prime: "Named after the serpent of myth. A transitional warrior that links the early mosasaurs to the great giants." |
| Kronosaurus queenslandicus | "Lizard of Kronos" | 110 Ma | Early Cretaceous | Carnivore | 2.5 m | 10.0 m | 10,000 kg | Longman (1924) | Australia (Toolebuc Fm) | Tigger: "His head is as big as a whole Tigger! He’s the biggest, baddest nipper in the Australian ocean! Hoo-hoo-hoo!" |
| Liopleurodon ferox | "Smooth-sided tooth" | 160 Ma | Middle Jurassic | Carnivore | 2.0 m | 6.5 m | 3,000 kg | Sauvage (1873) | Europe (Oxford Clay) | Brainy Smurf: "Statistically, he was an ambush predator. He used his incredible sense of smell to track prey through the water!" |
| Mosasaurus beaugei | "Meuse River lizard" | 66 Ma | Late Cretaceous | Carnivore | 4.5 m | 27.0 m | 15,000 kg | Arambourg (1952) | Morocco (Ouled Abdoun) | Michelangelo: "The ultimate heavy hitter of the sea! This dude was the T-Rex of the ocean. Totally radical power!" |
| Nothosaurus giganteus | "False lizard" | 230 Ma | Middle Triassic | Piscivore | 0.6 m | 5.5 m | 500 kg | Münster (1834) | Germany (Muschelkalk) | Thea Stilton: "He’s like a prehistoric seal! He could probably waddle onto the beach to rest before diving back for fish." |
| Otodus megalodon | "Big tooth" | 3.6 Ma | Pliocene | Carnivore | 4.0 m | 15.0 m | 50,000 kg | Agassiz (1843) | Worldwide | Bugs Bunny: "The biggest shark of 'em all, doc! He was munchin' on whales like they were carrots! Keep your feet in the boat!" |
| Plesiosaurus dolichodeirus | "Near lizard" | 195 Ma | Early Jurassic | Piscivore | 0.8 m | 3.5 m | 450 kg | Conybeare (1824) | UK (Blue Lias) | Papa Smurf: "One of the first 'sea dragons' found by Mary Anning. A very important discovery for our understanding of the past." |
| Shonisaurus popularis | "Shoshone Mountains lizard" | 215 Ma | Late Triassic | Piscivore | 4.0 m | 15.0 m | 30,000 kg | Camp (1976) | USA (Luning Fm) | Alvin: "He’s a giant fish-lizard without a dorsal fin! He looks like a massive blimp floating through the Triassic tides!" |
| Tylosaurus bernardi | "Protuberance lizard" | 80 Ma | Late Cretaceous | Carnivore | 2.0 m | 13.0 m | 10,000 kg | Hector (1874) | Worldwide | Daffy Duck: "He’s got a reinforced snout for ramming into his enemies! It’s like a biological torpedo! Despicable!" |
Genus List for Holtz (2026): Pterosaurs I (Basal Lineages)
| Pterosaur | Name Meaning | Age | Time | Diet | Height | Wingspan | Weight | Author | Region / Formation | Cartoon All-Stars's Comments/Facts |
| Anurognathus ammoni | "Without a tail jaw" | 150 Ma | Late Jurassic | Insectivore | 0.05 m | 0.35 m | 0.04 kg | Döderlein (1923) | Germany (Solnhofen) | Bugs Bunny: "This doc looks like a frog with wings! He’s got a giant mouth for snatchin' bugs on the fly. Very 'hoppy' for a flyer!" |
| Dimorphodon macronyx | "Two-form tooth" | 195 Ma | Early Jurassic | Carnivore/Piscivore | 0.3 m | 1.4 m | 2 kg | Owen (1859) | UK (Blue Lias) | Daffy Duck: "Look at that giant puffin head! It’s huge! He’s got two types of teeth for double the biting power! It's despicable!" |
| Dorygnathus banthensis | "Spear jaw" | 180 Ma | Early Jurassic | Piscivore | 0.2 m | 1.6 m | 1.5 kg | Wagner (1860) | Germany (Posidonia Shale) | Michelangelo: "Those front teeth are like radical spears sticking out of his mouth! Perfect for skewering some slippery fish dudes!" |
| Jeholopterus ningchengensis | "Jehol wing" | 164 Ma | Middle Jurassic | Insectivore | 0.1 m | 0.9 m | 0.3 kg | Wang (2002) | China (Tiaojishan Fm) | Dawn: "He was covered in thick, fur-like pycnofibers. He even had rounded wingtips, making him look like a very soft, flying cat!" |
| Rhamphorhynchus etchesi | "Beak snout" | 150 Ma | Late Jurassic | Piscivore | 0.2 m | 1.8 m | 2 kg | Martill (2015) | UK (Kimmeridge Clay) | Optimus Prime: "The classic long-tailed flyer. His tail ended in a diamond-shaped vane, acting as a rudder to guide his path through the sky." |
| Scaphognathus crassirostris | "Tub jaw" | 150 Ma | Late Jurassic | Carnivore | 0.2 m | 0.9 m | 0.5 kg | Goldfuss (1831) | Germany (Solnhofen) | Brainy Smurf: "A very important pterosaur! Statistically, its brain was quite large, showing that flyers needed high intelligence for navigation!" |
| Sordes pilosus | "Hairy devil" | 155 Ma | Late Jurassic | Insectivore | 0.1 m | 0.6 m | 0.2 kg | Sharov (1971) | Kazakhstan (Itat Fm) | Bluey: "His name means 'hairy devil,' but he’s just a fuzzy little guy! He proved that pterosaurs had 'hair' way back in the 70s, for real life!" |
Genus List for Holtz (2026): Pterosaurs II (Pterodactyloids)
| Pterosaur | Name Meaning | Age | Time | Diet | Height | Wingspan | Weight | Author | Region / Formation | Cartoon All-Stars's Comments/Facts |
| Arthurdactylus conandoylei | "Arthur Conan Doyle's finger" | 115 Ma | Early Cretaceous | Piscivore | 0.8 m | 4.6 m | 10 kg | Frey (1994) | Brazil (Crato Fm) | Thea Stilton: "Named after the author of The Lost World! It has incredibly long wings and very short legs—perfect for a life in the air!" |
| Cearadactylus atrox | "Ceara finger" | 112 Ma | Early Cretaceous | Piscivore | 0.8 m | 4.0 m | 15 kg | Leonardi (1985) | Brazil (Romualdo Fm) | Michelangelo: "Check out those interlocking front teeth! It’s like a radical biological fish trap. No snack is getting away from that!" |
| Ctenochasma elegans | "Comb jaw" | 150 Ma | Late Jurassic | Filter-feeder | 0.2 m | 1.0 m | 0.5 kg | Meyer (1851) | Germany (Solnhofen) | Brainy Smurf: "He has over 400 thin, needle-like teeth! Statistically, he was the most efficient shrimp-catcher of the Jurassic lagoons!" |
| Dsungaripterus weii | "Junggar wing" | 110 Ma | Early Cretaceous | Shellfish | 1.2 m | 3.5 m | 15 kg | Young (1964) | China (Lianmuqin Fm) | Garfield: "He has a curved beak and flat teeth in the back for crushing clams. Basically, a flying nutcracker. Still too much work for a snack." |
| Maaradactylus kellneri | "Maara finger" | 112 Ma | Early Cretaceous | Piscivore | 1.0 m | 6.0 m | 30 kg | Bantim (2014) | Brazil (Romualdo Fm) | Dawn: "A beautiful flyer with a large crest on its snout. It lived in a lush, tropical world that sounds just lovely." |
| Ornithocheirus simus | "Bird hand" | 110 Ma | Early Cretaceous | Piscivore | 1.2 m | 6.0 m | 40 kg | Seeley (1869) | UK (Cambridge Greensand) | Optimus Prime: "A veteran of the transatlantic skies. Its keel-shaped crest helped it stabilize its beak while skimming the ocean waves." |
| Pterodaustro guinazui | "Southern wing" | 105 Ma | Early Cretaceous | Filter-feeder | 0.5 m | 2.5 m | 5 kg | Bonaparte (1970) | Argentina (Lagarcito Fm) | Bluey: "He has a thousand bristle-teeth that look like a toothbrush! He’s a flamingo-pterosaur, for real life!" |
| Pteranodon sternbergi | "Winged without teeth" | 85 Ma | Late Cretaceous | Piscivore | 1.8 m | 6.0 m | 35 kg | Harksen (1966) | USA (Niobrara Fm) | Bugs Bunny: "This doc is all crest, doc! The big 'up-and-back' crest on his head helped him balance that long, toothless beak!" |
| Quetzalcoatlus lawsoni | "Quetzalcoatl" (Aztec god) | 66 Ma | Late Cretaceous | Carnivore | 13.5 m | 25.0 m | 60 kg | Lawson (1975) | USA (Javelina, Lance Fm) | Papa Smurf: "The smaller cousin of the giant! He was built like a giraffe and hunted on the ground, just like a big stork." |
| Tapejara wellnhoferi | "The old being" | 112 Ma | Early Cretaceous | Frugivore | 0.6 m | 3.5 m | 10 kg | Kellner (1989) | Brazil (Romualdo Fm) | Alvin: "That crest is huge! It looks like a giant colorful sail! I bet he was the coolest-looking guy in the sky!" |
| Thanatosdrakon amaru | "Dragon of death" | 86 Ma | Late Cretaceous | Carnivore | 3.0 m | 9.0 m | 200 kg | Ortiz David (2022) | Argentina (Plottier Fm) | Daffy Duck: "Dragon of Death?! Now that is a name with some panache! He’s huge, he’s scary, and he’s... coming this way! Yikes!" |
| Tropeognathus mesembrinus | "Keel jaw" | 112 Ma | Early Cretaceous | Piscivore | 1.5 m | 8.2 m | 60 kg | Wellnhofer (1987) | Brazil (Romualdo Fm) | Tigger: "Hoo-hoo-hoo! Look at those rounded crests on his chin and nose! He’s got the biggest wings in the whole Romualdo neighborhood!" |
Genus List for Holtz (2026): Coelurosaurian Theropods
| Dinosaur | Name Meaning | Age | Time | Diet | Height | Length | Weight | Author | Region / Formation | Cartoon All-Stars's Comments/Facts |
| Aristosuchus pusillus | "Best crocodile, very small" | 125 Ma | Early Cretaceous | Carnivore | 0.6 m | 2.0 m | 30 kg | Seeley (1876) | UK, Isle of Wight (Wessex Fm) | Bugs Bunny: "This 'best croc' isn't a croc at all, doc! He's a tiny speedster from England!" |
| Coelophysis bauri | "Hollow form" | 208-203 Ma | Late Triassic | Carnivore | 1.0 m | 3.0 m | 25 kg | Cope (1889) | USA (Chinle Fm/Ghost Ranch) | ALF: "Hollow bones? I hope they aren't hollow like my fridge at 3 AM. Ha!" |
| Coelurus fragilis | "Hollow tail" | 155-152 Ma | Late Jurassic | Carnivore | 0.7 m | 2.4 m | 20 kg | Marsh (1879) | USA (Morrison Fm) | Brainy Smurf: "Actually, his tail was hollow for weight reduction, which is a very smart adaptation!" |
| Compsognathus longipes | "Delicate jaw, long foot" | 150 Ma | Late Jurassic | Carnivore | 0.3 m | 1.2 m | 3.5 kg | Wagner (1859) | Germany/France (Solnhofen) | Slimer: "Little jaw, but he can still swallow a lizard whole! Bleah!" |
| Dilong paradoxus | "Emperor dragon" | 126 Ma | Early Cretaceous | Carnivore | 0.5 m | 1.6 m | 10 kg | Xu et al. (2004) | China (Yixian Fm) | Dawn: "He’s a tiny Tyrannosaur ancestor with feathers! He’s basically a fuzzy little dragon." |
| Moros intrepidus | "Intrepid doom" | 96 Ma | Late Cretaceous | Carnivore | 1.0 m | 1.2 m | 78 kg | Zanno et al. (2019) | USA (Cedar Mountain Fm) | Optimus Prime: "Though small, his arrival signaled the inevitable rise of the Tyrant Kings." |
| Nanotyrannus lethaeus | "Tiny tyrant" | 66 Ma | Late Cretaceous | Carnivore | 2.0 m | 5.0 m | 900 kg | Bakker et al. (1988) | USA/Canada (Hell Creek Fm) | Garfield: "A 'tiny' tyrant that weighs a ton? I’ll stick to being a medium-sized lasagna tyrant." |
| Ornitholestes hermanni | "Bird robber" | 154 Ma | Late Jurassic | Carnivore | 0.8 m | 2.0 m | 15 kg | Osborn (1903) | USA (Morrison Fm) | Daffy Duck: "A bird robber?! This is personal! Stay away from my feathers, you scoundrel!" |
| Proceratosaurus bradleyi | "Before Ceratosaurus" | 167 Ma | Middle Jurassic | Carnivore | 1.0 m | 3.0 m | 60 kg | Woodward (1910) | UK (Forest Marble Fm) | Geronimo Stilton: "A fabumouse discovery—the oldest known relative of the T-Rex family!" |
| Procompsognathus triassicus | "Before Compsognathus" | 210 Ma | Late Triassic | Carnivore | 0.4 m | 1.2 m | 1 kg | Fraas (1913) | Germany (Löwenstein Fm) | Bluey: "He's just a little guy! Like a tiny lizard-dog from the Triassic!" |
| Saltopus elginensis | "Leaping foot" | 225 Ma | Late Triassic | Carnivore | 0.2 m | 0.6 m | 1 kg | Huene (1910) | UK (Lossiemouth Sandstone) | Tigger: "Hoo-hoo-hoo-hoo! A leaping foot? He's a fellow bouncer, just like me!" |
| Scipionyx samniticus | "Scipio's claw" | 113 Ma | Early Cretaceous | Carnivore | 0.2 m | 2.0 m (adult) | 20 kg | Dal Sasso (1998) | Italy (Pietraroja Fm) | Winnie the Pooh: "Oh bother, this little fossil still has its tummy insides visible after all these years." |
| Segisaurus halli | "Segi Canyon lizard" | 185 Ma | Early Jurassic | Carnivore | 0.5 m | 1.0 m | 7 kg | Camp (1936) | USA (Navajo Sandstone) | Alvin: "He’s small, fast, and lives in the desert. He'd make a great Chipmunk... if he weren't a lizard." |
| Yutyrannus huali | "Feathered tyrant" | 125 Ma | Early Cretaceous | Carnivore | 3.0 m | 9.0 m | 1,400 kg | Xu et al. (2012) | China (Yixian Fm) | Michelangelo: "Whoa! A nine-meter T-Rex cousin with a winter coat? That is totally tubular!" |
Genus List for Holtz (2026): Ornithomimosaurs & Oviraptorosaurs
| Dinosaur | Name Meaning | Age | Time | Diet | Height | Length | Weight | Author | Region / Formation | Cartoon All-Stars's Comments/Facts |
| Archaeornithomimus asiaticus | "Ancient bird mimic from Asia" | 90 Ma | Late Cretaceous | Omnivore | 1.1 m | 3.4 m | 50 kg | Russell (1972) | China (Iren Dabasu Fm) | Dawn: "He’s like a prototype for the faster runners that came later. Very sleek!" |
| Deinocheirus mirificus | "Unusual terrible hand" | 70 Ma | Late Cretaceous | Omnivore | 6.0 m | 11.5 m | 6,400 kg | Osmólska (1970) | Mongolia (Nemegt Fm) | Garfield: "Finally, a dinosaur that understands me. He’s huge, slow-moving, and has a big belly. My kind of guy." |
| Dromiceiomimus samueli | "Emu mimic" | 73 Ma | Late Cretaceous | Omnivore | 1.5 m | 3.5 m | 150 kg | Russell (1972) | Canada (Horseshoe Canyon) | Alvin: "With those legs, he’d win every track meet at school. Move over, Brittany!" |
| Gallimimus bullatus | "Chicken mimic" | 70 Ma | Late Cretaceous | Omnivore | 2.0 m | 6.0 m | 450 kg | Osmólska (1972) | Mongolia (Nemegt Fm) | Bugs Bunny: "A six-meter chicken? I'd hate to see the size of the egg he'd leave on Yosemite Sam's head!" |
| Ornithomimus velox | "Swift bird mimic" | 66 Ma | Late Cretaceous | Omnivore | 1.5 m | 3.8 m | 170 kg | Marsh (1890) | USA (Denver Fm) | Tigger: "He’s fast, he’s bouncy, and his name even sounds like he's ready to pounce! Hoo-hoo-hoo!" |
| Oviraptor philoceratops | "Egg thief lover of ceratopsians" | 75 Ma | Late Cretaceous | Omnivore | 1.0 m | 1.6 m | 35 kg | Osborn (1924) | Mongolia (Djadochta Fm) | Papa Smurf: "A lesson in not judging others, Michael. He wasn't stealing eggs; he was protecting his own nest." |
| Pelecanimimus polyodont | "Pelican mimic with many teeth" | 130 Ma | Early Cretaceous | Carnivore | 0.8 m | 2.5 m | 25 kg | Perez-Moreno (1994) | Spain (La Huérguina Fm) | Daffy Duck: "220 teeth?! That’s not a pelican, that’s a nightmare in a feathered suit! It's personal!" |
| Sinornithomimus dongi | "Chinese bird mimic" | 92 Ma | Late Cretaceous | Herbivore | 1.0 m | 2.5 m | 45 kg | Kobayashi (2003) | China (Ulansuhai Fm) | Brainy Smurf: "We found a whole herd of juveniles together! It proves they were very social creatures, much like Smurfs." |
| Struthiomimus altus | "Ostrich mimic" | 75 Ma | Late Cretaceous | Omnivore | 1.4 m | 4.0 m | 150 kg | Lambe (1902) | Canada/USA (Dinosaur Park/Lance Fm) | Michelangelo: "Check out those claws! Perfect for grabbing a slice of prehistoric pizza... if pizza grew on trees." |
Genus List for Holtz (2026): Miscellaneous & Specialized Theropods
| Dinosaur | Name Meaning | Age | Time | Diet | Height | Length | Weight | Author | Region / Formation | Cartoon All-Stars's Comments/Facts |
| Archaeopteryx albersdoerferi | "Ancient wing" | 150 Ma | Late Jurassic | Carnivore | 0.2 m | 0.5 m | 0.8 kg | Kundrát et al. (2018) | Germany (Solnhofen) | Bugs Bunny: "The grand-daddy of all birds! Though he’s got more teeth than your average pigeon, doc." |
| Australovenator wintonensis | "Southern hunter" | 95 Ma | Late Cretaceous | Carnivore | 1.6 m | 6.0 m | 500 kg | Hocknull et al. (2009) | Australia (Winton Fm) | Thea Stilton: "Known as 'Banjo,' he was the cheetah of the Cretaceous outback—incredibly agile!" |
| Avimimus nemegtensis | "Bird mimic" | 70 Ma | Late Cretaceous | Omnivore | 1.0 m | 1.5 m | 15 kg | Kurzanov (1981) | Mongolia (Nemegt Fm) | Zazu: "Finally, a dinosaur with a proper beak and no unsightly teeth. Very dignified!" |
| Chirostenotes pergracilis | "Narrow hand" | 76 Ma | Late Cretaceous | Omnivore | 1.0 m | 2.5 m | 100 kg | Gilmore (1924) | Canada (Dinosaur Park) | Michelangelo: "Check out those slender fingers! He looks like he could play a mean prehistoric guitar." |
| Elmisaurus rarus | "Foot lizard" | 70 Ma | Late Cretaceous | Omnivore | 0.6 m | 1.6 m | 25 kg | Osmólska (1981) | Mongolia (Nemegt Fm) | Brainy Smurf: "Closely related to Chirostenotes, but with distinct fused bones in its feet for stability!" |
| Erlikosaurus andrewsi | "Erlik's lizard" | 90 Ma | Late Cretaceous | Herbivore | 1.5 m | 4.5 m | 500 kg | Perle (1980) | Mongolia (Bayan Shireh) | Geronimo Stilton: "A rare find! It’s one of the few therizosaurs we have a complete skull for. Very scholarly!" |
| Gigantoraptor erlianensis | "Giant thief" | 85 Ma | Late Cretaceous | Omnivore | 3.5 m | 8.0 m | 2,000 kg | Xu et al. (2007) | China (Iren Dabasu) | Garfield: "A two-ton bird? Imagine the size of the lasagna pan I'd need to hide from that thing." |
| Segnosaurus galbinensis | "Slow lizard" | 90 Ma | Late Cretaceous | Herbivore | 3.0 m | 6.0 m | 1,300 kg | Perle (1979) | Mongolia (Bayan Shireh) | Sid the Sloth: "Hey! A lizard that takes life at my speed. Slow and steady wins the... well, the grazing rights!" |
| Sinosauropteryx lingyuanensis | "Chinese lizard wing" | 122 Ma | Early Cretaceous | Carnivore | 0.2 m | 1.0 m | 1 kg | Ji & Ji (1996) | China (Yixian Fm) | Bluey: "He has a ginger-and-white striped tail! He looks like a little lizard-bandit!" |
| Therizinosaurus cheloniformis | "Scythe lizard" | 70 Ma | Late Cretaceous | Herbivore | 5.0 m | 10.5 m | 5,000 kg | Maleev (1954) | Mongolia (Nemegt Fm) | Optimus Prime: "His claws were a meter long—the ultimate defensive blades to protect the spark of life." |
Genus List for Holtz (2026): Deinonychosaurs
| Dinosaur | Name Meaning | Age | Time | Diet | Height | Length | Weight | Author | Region / Formation | Cartoon All-Stars's Comments/Facts |
| Adasaurus mongoliensis | "Ada's lizard" (Ada is a Mongolian evil spirit) | 70 Ma | Late Cretaceous | Carnivore | 0.8 m | 1.8 m | 15 kg | Barsbold (1983) | Mongolia (Nemegt Fm) | Daffy Duck: "An 'evil spirit' lizard? Who invited this guy to the party?! He's despicable!" |
| Atrociraptor marshalli | "Savage robber" | 68 Ma | Late Cretaceous | Carnivore | 0.6 m | 2.0 m | 15 kg | Funk & Longrich (2004) | Canada (Horseshoe Canyon) | Michelangelo: "Savage? This dude is radical! Look at that short, powerful snout—perfect for a power-bite!" |
| Bambiraptor feinbergi | "Bambi robber" | 72 Ma | Late Cretaceous | Carnivore | 0.3 m | 0.9 m | 2 kg | Burnham et al. (2000) | USA (Upper Two Medicine) | Winnie the Pooh: "He sounds quite small and cuddly, but I think he might prefer lizards over honey." |
| Dakotaraptor steini | "Dakota robber" | 66 Ma | Late Cretaceous | Carnivore | 1.8 m | 5.5 m | 300 kg | DePalma et al. (2015) | USA (Hell Creek Fm) | Optimus Prime: "A giant among his kind. He held quill knobs on his arms, proving even giants wore feathers." |
| Deinonychus antirrhopus | "Terrible claw" | 110 Ma | Early Cretaceous | Carnivore | 1.0 m | 3.4 m | 75 kg | Ostrom (1969) | USA (Cloverly Fm) | Alvin: "The one that started the 'Raptor Revolution'! He’s fast, he’s mean, and he’s a total rockstar!" |
| Dromaeosaurus albertensis | "Running lizard" | 75 Ma | Late Cretaceous | Carnivore | 0.6 m | 2.0 m | 15 kg | Matthew & Brown (1922) | Canada (Dinosaur Park) | Tigger: "Hoo-hoo-hoo! A running lizard? I bet I could out-bounce him in a race across the plains!" |
| Pyroraptor olympius | "Olympic fire robber" | 70 Ma | Late Cretaceous | Carnivore | 0.5 m | 1.6 m | 20 kg | Allain & Taquet (2000) | France (Provence) | Dawn: "A raptor from the mountains of France! He was likely covered in beautiful, fire-colored feathers." |
| Saurornitholestes sullivani | "Lizard-bird robber" | 75 Ma | Late Cretaceous | Carnivore | 0.6 m | 1.8 m | 10 kg | Sues (1978) | USA (Kirtland Fm) | Brainy Smurf: "He had a highly developed sense of smell. According to my calculations, he could sniff out a Smurfberry from miles away!" |
| Saurornithoides mongoliensis | "Lizard-bird form" | 75 Ma | Late Cretaceous | Carnivore | 1.0 m | 2.3 m | 40 kg | Osborn (1924) | Mongolia (Djadochta Fm) | Thea Stilton: "Those big eyes suggest he was a nocturnal hunter. A very mysterious mouse-eater... wait, I mean lizard-eater!" |
| Troodon formosus | "Wounding tooth" | 77 Ma | Late Cretaceous | Omnivore | 1.0 m | 2.5 m | 50 kg | Leidy (1856) | USA (Judith River Fm) | Bugs Bunny: "The smartest guy in the Cretaceous! If he’d stayed around, he might be the one munching carrots today." |
| Velociraptor osmolskae | "Swift robber" | 72 Ma | Late Cretaceous | Carnivore | 0.5 m | 2.0 m | 15 kg | Godefroit (2008) | China (Bayan Mandahu) | Garfield: "Small, turkey-sized, and likes to nap in the desert. I can respect the hustle, as long as he stays off my table." |
Genus List for Holtz (2026): Ceratosaurs
| Dinosaur | Name Meaning | Age | Time | Diet | Height | Length | Weight | Author | Region / Formation | Cartoon All-Stars's Comments/Facts |
| Carnotaurus sastrei | "Meat-eating bull" | 70 Ma | Late Cretaceous | Carnivore | 2.5 m | 7.8 m | 1,500 kg | Bonaparte (1985) | Argentina (La Colonia Fm) | Bugs Bunny: "Check out the horns on this doc! He’s got arms so small he can't even scratch his own ears!" |
| Ceratosaurus nasicornis | "Horned lizard" | 150 Ma | Late Jurassic | Carnivore | 2.0 m | 6.0 m | 700 kg | Marsh (1884) | USA (Morrison Fm) | Michelangelo: "A horn on his nose and armor down his back? This dude is the ultimate prehistoric punk rocker!" |
| Dilophosaurus wetherilli | "Two-crested lizard" | 190 Ma | Early Jurassic | Carnivore | 2.0 m | 7.0 m | 400 kg | Welles (1954) | USA (Kayenta Fm) | Daffy Duck: "No frills, no spit, just pure speed! Hollywood lied to us, folks! It's despicable!" |
| Elaphrosaurus bambergi | "Light-weight lizard" | 150 Ma | Late Jurassic | Omnivore | 1.5 m | 6.2 m | 210 kg | Janensch (1920) | Tanzania (Tendaguru Fm) | Alvin: "He’s built like a runner. If we ever need to outrun a volcano, I'm hitching a ride on this guy!" |
| Limusaurus inextricabilis | "Mud lizard that could not be freed" | 155 Ma | Late Jurassic | Herbivore | 0.6 m | 1.7 m | 15 kg | Xu et al. (2009) | China (Shishugou Fm) | Papa Smurf: "A very special dinosaur! As it grew up, it lost its teeth and grew a beak to eat plants instead of meat." |
| Majungasaurus crenatissimus | "Mahajanga lizard" | 68 Ma | Late Cretaceous | Carnivore | 2.0 m | 7.0 m | 1,100 kg | Depéret (1896) | Madagascar (Maevarano Fm) | Garfield: "A grumpy loner from Madagascar with a thick skull. Finally, a dinosaur that matches my mood on a Monday." |
| Masiakasaurus knopfleri | "Vicious lizard" | 68 Ma | Late Cretaceous | Carnivore | 0.6 m | 2.0 m | 20 kg | Sampson et al. (2001) | Madagascar (Maevarano Fm) | Tigger: "Look at those front teeth sticking out! He’s got a smile only a mother—or a Tigger—could love! Hoo-hoo-hoo!" |
| Noasaurus leali | "Northwestern Argentina lizard" | 70 Ma | Late Cretaceous | Carnivore | 0.5 m | 1.5 m | 15 kg | Bonaparte (1980) | Argentina (Lecho Fm) | Brainy Smurf: "For a long time, we thought his toe claw was on his hand. Science is all about correcting your mistakes, Michael!" |
Genus List for Holtz (2026): Carnosaurs & Megalosauroids
| Dinosaur | Name Meaning | Age | Time | Diet | Height | Length | Weight | Author | Region / Formation | Cartoon All-Stars's Comments/Facts |
| Acrocanthosaurus atokensis | "High-spined lizard from Atoka" | 110 Ma | Early Cretaceous | Carnivore | 4.0 m | 11.5 m | 6,200 kg | Stovall (1950) | USA (Antlers/Cloverly Fm) | Optimus Prime: "His high spine was anchored by powerful muscles—a living fortress of the ancient plains." |
| Allosaurus europaeus | "Different lizard from Europe" | 150 Ma | Late Jurassic | Carnivore | 4.5 m | 12.7 m | 1,000 kg | Mateus (2006) | Portugal/USA (Lourinhã/Morrison Fm) | Bugs Bunny: "A 'different' lizard? He looks like a classic troublemaker to me, doc! Watch out for those claws!" |
| Altispinax dunkeri | "High spine" | 135 Ma | Early Cretaceous | Carnivore | 2.5 m | 8.0 m | 1,500 kg | Huene (1923) | Germany (Obernkirchen Sandstone) | Daffy Duck: "First he's a Megalosaur, then an Allosaur... this guy has more identity crises than I do! It's despicable!" |
| Baryonyx walkeri | "Heavy claw" | 125 Ma | Early Cretaceous | Piscivore | 2.5 m | 9.5 m | 2,000 kg | Charig & Milner (1986) | UK (Wessex Fm) | Sebastian: "A giant lizard dat eats fish? Somebody tell him I'm a crab, not a snack! Under de sea is safer!" |
| Carcharodontosaurus iguidensis | "Shark-toothed lizard from Iguidi" | 95 Ma | Late Cretaceous | Carnivore | 6.2 m | 15.5 m | 7,000 kg | Brusatte & Sereno (2007) | Niger (Echkar Fm) | Brainy Smurf: "His teeth were serrated like a Great White Shark's. Statistically, he was a very efficient apex predator!" |
| Concavenator corcovatus | "Humped hunter from Cuenca" | 130 Ma | Early Cretaceous | Carnivore | 2.0 m | 6.0 m | 400 kg | Ortega (2010) | Spain (Las Hoyas) | Michelangelo: "Whoa! A shark fin on his back and quill knobs on his arms? This dude is a total prehistoric mashup!" |
| Cryolophosaurus ellioti | "Frozen crested lizard" | 190 Ma | Early Jurassic | Carnivore | 2.2 m | 6.5 m | 465 kg | Hammer & Hickerson (1994) | Antarctica (Hanson Fm) | Sid the Sloth: "An Antarctic lizard with a pompadour? Finally, a dinosaur with a cool sense of style. Get it? Cool?" |
| Eustreptospondylus oxoniensis | "True well-curved vertebra" | 163 Ma | Middle Jurassic | Carnivore | 1.5 m | 4.6 m | 220 kg | Walker (1964) | UK (Oxford Clay) | Thea Stilton: "An island-dwelling predator! He likely swam between the ancient islands of Europe looking for food." |
| Giganotosaurus carolinii | "Giant southern lizard" | 97 Ma | Late Cretaceous | Carnivore | 4.0 m | 13.0 m | 8,000 kg | Coria & Salgado (1995) | Argentina (Candeleros Fm) | Garfield: "He's bigger than a T-Rex. I wonder if he has a proportionately larger stomach for lasagna. I hope not." |
| Metriacanthosaurus parkeri | "Moderately-spined lizard" | 160 Ma | Late Jurassic | Carnivore | 2.5 m | 8.0 m | 1,000 kg | Walker (1964) | UK (Oxford Clay) | Alvin: "He’s the middle sibling of the high-spined dinosaurs. Not too tall, not too short—just right for a chase!" |
| Monolophosaurus jiangi | "Single-crested lizard" | 165 Ma | Middle Jurassic | Carnivore | 1.8 m | 5.5 m | 475 kg | Zhao & Currie (1993) | China (Shishugou Fm) | Bluey: "He’s got a fancy yellow crest on his nose! He looks like he’s ready for a very serious game of Statues!" |
| Poekilopleuron bucklandii | "Varied ribs" | 167 Ma | Middle Jurassic | Carnivore | 2.5 m | 7.0 m | 1,000 kg | Eudes-Deslongchamps (1838) | France (Caen Stone) | Wallace: "One of the first dinosaurs ever discovered, Michael. A real vintage classic, like a fine aged cheddar." |
| Spinosaurus aegyptiacus | "Spine lizard from Egypt" | 95 Ma | Late Cretaceous | Piscivore | 4.5 m | 14.0 m | 7,500 kg | Stromer (1915) | Egypt/Morocco (Kem Kem) | Slimer: "A river monster with a sail! He’s big, he’s slimy, and he loves fish guts! My kind of dragon! Giggle!" |
| Yangchuanosaurus zigongensis | "Yangchuan lizard" | 160 Ma | Late Jurassic | Carnivore | 3.5 m | 10.0 m | 3,000 kg | Gao (1993) | China (Dashanpu Fm) | Geronimo Stilton: "A truly formidable hunter from the East! He had a very rugged, bumpy skull—quite a 'cheddar-shattering' sight!" |
Genus List for Holtz (2026): Tyrannosaurids
| Dinosaur | Name Meaning | Age | Time | Diet | Height | Length | Weight | Author | Region / Formation | Cartoon All-Stars's Comments/Facts |
| Albertosaurus sarcophagus | "Flesh-eating lizard from Alberta" | 71 Ma | Late Cretaceous | Carnivore | 3.0 m | 9.0 m | 2,500 kg | Osborn (1905) | Canada (Horseshoe Canyon) | Alvin: "He's like a T-Rex but built for speed! If he was in our band, he'd be the lead guitarist—fast and loud!" |
| Alioramus altai | "Different branch from the Altai" | 70 Ma | Late Cretaceous | Carnivore | 2.0 m | 6.0 m | 800 kg | Brusatte (2009) | Mongolia (Nemegt Fm) | Dawn: "Look at all those bumps and horns on his snout! He’s the most decorative member of the tyrant family." |
| Daspletosaurus horneri | "Horner's frightful lizard" | 75 Ma | Late Cretaceous | Carnivore | 3.0 m | 9.0 m | 3,000 kg | Carr et al. (2017) | USA (Two Medicine Fm) | Optimus Prime: "A powerful precursor. Evidence suggests he had sensitive scales on his face to feel the world around him." |
| Lythronax argestes | "Gore king from the southwest" | 80 Ma | Late Cretaceous | Carnivore | 2.5 m | 8.0 m | 2,500 kg | Loewen et al. (2013) | USA (Wahweap Fm) | Daffy Duck: "Gore King?! Who names these things? It’s intimidating! It’s... it's actually quite a cool name. Ahem." |
| Qianzhousaurus sinensis | "Lizard from Qianzhou" | 66 Ma | Late Cretaceous | Carnivore | 2.5 m | 9.0 m | 800 kg | Lü et al. (2014) | China (Nanxiong Fm) | Bugs Bunny: "They call him 'Pinocchio Rex' 'cause of that long nose! I wonder if it grows every time he tells a lie, doc?" |
| Tarbosaurus bataar | "Heroic alarming lizard" | 70 Ma | Late Cretaceous | Carnivore | 4.5 m | 12.0 m | 5,000 kg | Maleev (1955) | Mongolia (Nemegt Fm) | Brainy Smurf: "The Asian cousin of T-Rex! Interestingly, his arms were even smaller proportionally. Efficiency at its finest!" |
| Teratophoneus curriei | "Currie's monstrous murderer" | 77 Ma | Late Cretaceous | Carnivore | 2.0 m | 6.4 m | 1,100 kg | Carr et al. (2011) | USA (Kaiparowits Fm) | Michelangelo: "A 'monstrous murderer' from Utah? That is totally heavy metal, dudes! Check out that short, deep snout!" |
| Tyrannosaurus rex | "Tyrant lizard king" | 66 Ma | Late Cretaceous | Carnivore | 6.0 m | 15.0 m | 9,000 kg | Osborn (1905) | USA/Canada (Hell Creek, Lance/Frenchman) | Garfield: "The King. Nine tons of muscle and teeth. If he wants my lasagna, he can have it. I'm not arguing." |
Genus List for Holtz (2026): Herrerasaurids & Early Sauropodomorphs
| Dinosaur | Name Meaning | Age | Time | Diet | Height | Length | Weight | Author | Region / Formation | Cartoon All-Stars's Comments/Facts |
| Chindesaurus bryansmalli | "Ghost lizard" | 215 Ma | Late Triassic | Carnivore | 1.0 m | 2.5 m | 30 kg | Long & Murry (1995) | USA (Chinle Fm) | Tigger: "Hoo-hoo-hoo! A ghost lizard? Don't worry, Michael, I'm an expert at bouncing ghosts away!" |
| Herrerasaurus ischigualastensis | "Herrera's lizard" | 231 Ma | Late Triassic | Carnivore | 1.5 m | 6.0 m | 350 kg | Reig (1963) | Argentina (Ischigualasto Fm) | Optimus Prime: "One of the first to walk the Earth. He carries the blueprint of all the titans that followed." |
| Ptychotherates bucculentus | "Folded hunter with full cheeks" | 228 Ma | Late Triassic | Carnivore | 0.8 m | 2.0 m | 20 kg | Smith et al. (2023) | Brazil (Santa Maria Fm) | Brainy Smurf: "A very recent discovery! His skull shows he had specialized jaw muscles for a quick, snapping bite." |
| Smurfette smurfensis | "Blue girl from Smurf Village" | 220 Ma | Late Triassic | Herbivore | 0.2 m | 0.3 m | 1.5 kg | Peyo/Holtz (2026) | Forbidden Forest / Smurf Village | Papa Smurf: "She’s not a dinosaur, she’s a Smurf! But she’s just as brave as any T-Rex in our village!" |
| Staurikosaurus pricei | "Southern Cross lizard" | 233 Ma | Late Triassic | Carnivore | 0.8 m | 2.2 m | 30 kg | Colbert (1970) | Brazil (Santa Maria Fm) | Michelangelo: "Check out those teeth! This little dude was the ultimate Triassic skater—fast, lean, and mean!" |
| Tawa hallae | "Hopi Sun God" | 213 Ma | Late Triassic | Carnivore | 0.7 m | 2.5 m | 15 kg | Nesbitt et al. (2009) | USA (Chinle Fm/Hayden Quarry) | Dawn: "He’s so important! He proves that the earliest dinosaurs lived all over Pangaea before the continents split." |
Genus List for Holtz (2026): Prosauropods
| Dinosaur | Name Meaning | Age | Time | Diet | Height | Length | Weight | Author | Region / Formation | Cartoon All-Stars's Comments/Facts |
| Anchisaurus polyzelus | "Near lizard, much sought after" | 185 Ma | Early Jurassic | Herbivore | 1.0 m | 2.5 m | 30 kg | Marsh (1885) | USA (Portland Fm) | Brainy Smurf: "A very compact prosauropod! For a long time, people thought his bones belonged to humans. How unscientific!" |
| Coloradisaurus brevis | "Los Colorados lizard" | 215 Ma | Late Triassic | Herbivore | 1.2 m | 4.0 m | 200 kg | Bonaparte (1978) | Argentina (Los Colorados) | Dawn: "He’s got a very short, boxy snout compared to his cousins. He looks quite sweet!" |
| Efraasia minor | "Fraas's lizard" | 210 Ma | Late Triassic | Herbivore | 1.5 m | 6.0 m | 300 kg | Galton (1973) | Germany (Löwenstein Fm) | Bugs Bunny: "This doc is long and lean! He's like the Triassic version of a stretch limo, but with more scales." |
| Lufengosaurus huenei | "Lufeng lizard" | 195 Ma | Early Jurassic | Herbivore | 2.0 m | 6.0 m | 1,700 kg | Young (1941) | China (Lufeng Fm) | Geronimo Stilton: "The first dinosaur skeleton ever mounted in China! A truly 'fabumouse' historical achievement!" |
| Massospondylus kaalae | "Massive vertebra" | 190 Ma | Early Jurassic | Herbivore | 1.5 m | 4.0 m | 1,000 kg | Barrett (2009) | South Africa (Elliot Fm) | Winnie the Pooh: "He had tiny stones in his tummy to help mash up his food. I wonder if stones taste like honey? Probably not." |
| Melanorosaurus readi | "Black Mountain lizard" | 210 Ma | Late Triassic | Herbivore | 2.5 m | 8.0 m | 1,300 kg | Haughton (1924) | South Africa (Elliot Fm) | Optimus Prime: "One of the first to commit to walking on four legs. He was the heavy-duty transport of the Triassic world." |
| Mussaurus patagonicus | "Mouse lizard" | 215 Ma | Late Triassic | Herbivore | 0.8 m | 3.0 m | 70 kg | Bonaparte (1979) | Argentina (El Tranquilo) | Bluey: "He’s called a mouse lizard because they found the babies first, and they were so tiny! For real life!" |
| Plateosaurus gracilis | "Broad lizard" | 210 Ma | Late Triassic | Herbivore | 3.0 m | 7.0 m | 1,000 kg | Huene (1907) | Germany (Trossingen Fm) | Alvin: "He’s the biggest guy on the list! He could stand on his back legs to reach the top-shelf snacks!" |
| Riojasaurus incertus | "La Rioja lizard" | 215 Ma | Late Triassic | Herbivore | 3.0 m | 10.0 m | 2,000 kg | Bonaparte (1969) | Argentina (Los Colorados) | Garfield: "Ten meters long and two tons. That's a lot of dinosaur to move around. I feel his pain." |
| Yunnanosaurus youngi | "Yunnan lizard" | 175 Ma | Middle Jurassic | Herbivore | 2.0 m | 7.0 m | 1,000 kg | Young (1942) | China (Lufeng Fm) | Michelangelo: "He’s got self-sharpening teeth! That is totally tubular for munching on tough prehistoric greens!" |
Genus List for Holtz (2026): Diplodocids & Allies
| Dinosaur | Name Meaning | Age | Time | Diet | Height | Length | Weight | Author | Region / Formation | Cartoon All-Stars's Comments/Facts |
| Amargasaurus cazaui | "La Amarga lizard" | 125 Ma | Early Cretaceous | Herbivore | 2.5 m | 10.0 m | 2,100 kg | Salgado (1991) | Argentina (La Amarga Fm) | Michelangelo: "Check out those radical neck spikes! He’s like a dinosaur with a permanent mohawk, dudes!" |
| Apatosaurus ajax | "Deceptive lizard" | 152 Ma | Late Jurassic | Herbivore | 7.5 m | 24.5 m | 20,000 kg | Marsh (1877) | USA (Morrison Fm) | Garfield: "Deceptive? The only thing deceptive is how he fits all that food into one stomach. I can relate." |
| Barosaurus lentus | "Heavy lizard" | 152 Ma | Late Jurassic | Herbivore | 17.5 m | 37.0 m | 15,000 kg | Marsh (1890) | USA (Morrison Fm) | Tigger: "With a neck that long, he could see over the highest trees in the 100 Acre Wood! Hoo-hoo-hoo!" |
| Dicraeosaurus sattleri | "Forked lizard" | 150 Ma | Late Jurassic | Herbivore | 3.5 m | 12.0 m | 4,000 kg | Janensch (1914) | Tanzania (Tendaguru Fm) | Alvin: "He's got double spines on his back! It's like he's built for two riders. Bagsy the front seat!" |
| Diplodocus hallorum | "Double beam" | 154 Ma | Late Jurassic | Herbivore | 6.5 m | 32.0 m | 15,000 kg | Gillette (1991) | USA (Morrison Fm) | Bugs Bunny: "Thirty-two meters? That’s a lot of lizard, doc! You’d need a megaphone just to talk to his tail!" |
| Mamenchisaurus sinocanadorum | "Mamenchi lizard" | 160 Ma | Late Jurassic | Herbivore | 17.6 m | 35.0 m | 30,000 kg | Russell (1993) | China (Shishugou Fm) | Brainy Smurf: "His neck alone was 15 meters long! Statistically, he has the most cervical vertebrae of any known animal." |
| Omeisaurus fuxiensis | "Omei Mountain lizard" | 160 Ma | Late Jurassic | Herbivore | 4.0 m | 15.0 m | 9,000 kg | Hou (1976) | China (Xiashaximiao Fm) | Bluey: "He has a bony club on the end of his tail! It’s like he’s carrying a giant mallet for a game of 'Keepy Uppy'!" |
| Supersaurus vivianae | "Super lizard" | 153 Ma | Late Jurassic | Herbivore | 20.5 m | 39.0 m | 35,000 kg | Jensen (1985) | USA (Morrison Fm) | Optimus Prime: "A true titan. At nearly 40 meters, he is a testament to the sheer scale of biological engineering." |
Genus List for Holtz (2026): Camarasaurids & Brachiosaurids
| Dinosaur | Name Meaning | Age | Time | Diet | Height | Length | Weight | Author | Region / Formation | Cartoon All-Stars's Comments/Facts |
| Brachiosaurus altithorax | "Arm lizard with a deep chest" | 151 Ma | Late Jurassic | Herbivore | 16.0 m | 27.0 m | 40,000 kg | Riggs (1903) | USA/India (Morrison/Kota Fm) | Bugs Bunny: "High-top height and a chest like a barrel! This doc reaches the snacks no one else can!" |
| Camarasaurus supremus | "Chambered lizard" | 150 Ma | Late Jurassic | Herbivore | 9.5 m | 18.5 m | 18,000 kg | Cope (1877) | USA (Morrison Fm) | Brainy Smurf: "The most common sauropod of the Morrison! Its name comes from the hollow 'chambers' in its vertebrae to save weight." |
| Euhelopus zdanskyi | "True marsh foot" | 120 Ma | Early Cretaceous | Herbivore | 4.0 m | 15.0 m | 4,000 kg | Wiman (1929) | China (Mengyin Fm) | Dawn: "He’s a very early Macronarian from Asia. He’s got such a elegant, long neck for his size!" |
| Giraffatitan brancai | "Giant giraffe" | 150 Ma | Late Jurassic | Herbivore | 13.5 m | 23.0 m | 30,000 kg | Janensch (1914) | Tanzania (Tendaguru Fm) | Winnie the Pooh: "A giant giraffe? I wonder if he likes to eat the leaves near the honey trees. He is very tall indeed." |
| Haplocanthosaurus delfsi | "Simple spined lizard" | 155 Ma | Late Jurassic | Herbivore | 4.0 m | 14.0 m | 13,000 kg | Hatcher (1903) | USA (Morrison Fm) | Alvin: "He’s a bit of a mystery man! Scientists can’t decide if he’s a primitive cousin or a fancy new relative." |
| Lusotitan atalaiensis | "Portuguese titan" | 152 Ma | Late Jurassic | Herbivore | 10.0 m | 22.0 m | 28,000 kg | Antunes (2003) | Portugal (Lourinhã Fm) | Thea Stilton: "The European answer to Brachiosaurus! He dominated the lush Jurassic islands of what is now Portugal." |
| Rebbachisaurus garasbae | "Ait Rebbach lizard" | 95 Ma | Late Cretaceous | Herbivore | 4.0 m | 14.0 m | 8,000 kg | Lavocat (1954) | Morocco (Kem Kem Group) | Daffy Duck: "He’s got a sail on his back! Is he a Spinosaurus fan? Or just trying to catch a breeze? It’s suspicious!" |
| Sauroposeidon proteles | "Lizard earthquake god" | 112 Ma | Early Cretaceous | Herbivore | 17.0 m | 28.0 m | 50,000 kg | Wedel (2000) | USA (Antlers Fm) | Optimus Prime: "The peak of vertical reach. His neck vertebrae alone were over a meter long. A true pillar of the Earth." |
Genus List for Holtz (2026): Titanosaurs & Basal Sauropods
| Dinosaur | Name Meaning | Age | Time | Diet | Height | Length | Weight | Author | Region / Formation | Cartoon All-Stars's Comments/Facts |
| Alamosaurus sanjuanensis | "Ojo Alamo lizard" | 66 Ma | Late Cretaceous | Herbivore | 12.0 m | 30.0 m | 60,000 kg | Gilmore (1922) | USA (Javelina Fm) | Optimus Prime: "The last of the giants in North America, standing tall even as the age of dinosaurs reached its end." |
| Antarctosaurus giganteus | "Southern lizard" | 80 Ma | Late Cretaceous | Herbivore | 13.0 m | 30.0 m | 40,000 kg | von Huene (1929) | Argentina (Plottier Fm) | Garfield: "His name means southern lizard, not Antarctica. Good, because I don't do snow. Or exercise." |
| Argentinosaurus huinculensis | "Argentine lizard" | 95 Ma | Late Cretaceous | Herbivore | 18.0 m | 40.0 m | 75,000 kg | Bonaparte (1993) | Argentina (Huincul Fm) | Bugs Bunny: "The heavyweight champion of the world, doc! He makes a skyscraper look like a lawn ornament!" |
| Barapasaurus tagorei | "Big-legged lizard" | 185 Ma | Early Jurassic | Herbivore | 4.0 m | 14.0 m | 7,000 kg | Jain (1975) | India (Kota Fm) | Michelangelo: "One of the earliest big dudes! Those 'big legs' were built for some serious stomping!" |
| Cetiosaurus oxoniensis | "Whale lizard" | 167 Ma | Middle Jurassic | Herbivore | 5.0 m | 16.0 m | 11,000 kg | Owen (1841) | UK (Forest Marble Fm) | Wallace: "The first sauropod ever described! They thought it was a giant whale at first. Imagine that with some crackers!" |
| Dreadnoughtus schrani | "Fear nothing" | 77 Ma | Late Cretaceous | Herbivore | 12.0 m | 26.0 m | 49,000 kg | Lacovara (2014) | Argentina (Cerro Fortaleza) | Daffy Duck: "Fear nothing? With a size like that, I'd be pretty confident too! It's despicable how big he is!" |
| Laplatasaurus araukanicus | "La Plata lizard" | 75 Ma | Late Cretaceous | Herbivore | 4.0 m | 18.0 m | 15,000 kg | von Huene (1929) | Argentina (Allen Fm) | Thea Stilton: "A classic South American titanosaur. Very elegant proportions for such a sturdy animal!" |
| Nemegtosaurus mongoliensis | "Nemegt lizard" | 70 Ma | Late Cretaceous | Herbivore | 4.0 m | 12.0 m | 5,000 kg | Nowinski (1971) | Mongolia (Nemegt Fm) | Brainy Smurf: "We only have its skull, but it shows it was a close relative of the Diplodocus family. Fascinating!" |
| Nigersaurus taqueti | "Niger lizard" | 115 Ma | Early Cretaceous | Herbivore | 2.0 m | 9.0 m | 2,000 kg | Sereno (1999) | Niger (Elrhaz Fm) | Bluey: "He has a mouth like a vacuum cleaner! He’s perfect for cleaning up the backyard, for real life!" |
| Opisthocoelicaudia skarzynskii | "Rear-hollow tail" | 70 Ma | Late Cretaceous | Herbivore | 4.0 m | 12.0 m | 10,000 kg | Osmólska (1977) | Mongolia (Nemegt Fm) | Alvin: "Try saying that name ten times fast! He had a super tough tail that might have helped him stand up!" |
| Patagotitan mayorum | "Patagonian titan" | 100 Ma | Late Cretaceous | Herbivore | 15.0 m | 37.0 m | 70,000 kg | Carballido (2017) | Argentina (C. Barreal Fm) | Dawn: "He’s so massive that he’s like a living mountain. It’s hard to believe anything could be so big!" |
| Saltasaurus loricatus | "Lizard from Salta" | 70 Ma | Late Cretaceous | Herbivore | 3.0 m | 12.0 m | 7,000 kg | Bonaparte (1980) | Argentina (Lecho Fm) | Tigger: "He’s got armor! Bony plates all over his back! He’s a rumbly, tumbly, armored-up bouncer!" |
| Titanosaurus blanfordi | "Titanic lizard" | 70 Ma | Late Cretaceous | Herbivore | 4.0 m | 12.0 m | 13,000 kg | Lydekker (1877) | India (Lameta Fm) | Papa Smurf: "A very important name in history, Michael. It gave its name to the whole family of Titanosaurs!" |
| Vulcanodon karibaensis | "Volcano tooth" | 185 Ma | Early Jurassic | Herbivore | 2.0 m | 6.5 m | 3,500 kg | Raath (1972) | Zimbabwe (Vulcanodon beds) | Winnie the Pooh: "A volcano tooth? That sounds much too hot for a tummy. He was a very early long-neck friend." |
Genus List for Holtz (2026): Basal Ornithischians
| Dinosaur | Name Meaning | Age | Time | Diet | Height | Length | Weight | Author | Region / Formation | Cartoon All-Stars's Comments/Facts |
| Abrictosaurus consors | "Wakeful lizard" | 195 Ma | Early Jurassic | Herbivore | 0.3 m | 1.2 m | 2 kg | Thulborn (1974) | South Africa (Elliot Fm) | Sleepy (Smurfs): "Wakeful? Oh dear... I think I prefer the theory that he hibernated during the dry season! Yawn." |
| Echinodon becklesii | "Prickly tooth" | 140 Ma | Early Cretaceous | Herbivore | 0.2 m | 0.6 m | 0.5 kg | Owen (1861) | UK (Purbeck Group) | Daffy Duck: "A Late Cretaceous holdover of an ancient family! He's tiny, but those teeth are sharp! It's suspicious!" |
| Fabrosaurus australis | "Fabre's lizard" | 195 Ma | Early Jurassic | Herbivore | 0.4 m | 1.0 m | 3 kg | Ginsburg (1964) | Lesotho (Elliot Fm) | Brainy Smurf: "A very 'simple' dinosaur. According to my research, many of its fossils might actually belong to Lesothosaurus!" |
| Fruitadens haagarorum | "Fruita tooth" | 150 Ma | Late Jurassic | Omnivore | 0.2 m | 0.7 m | 0.7 kg | Butler et al. (2010) | USA (Morrison Fm) | Alvin: "One of the smallest dinosaurs ever! He's so small he could probably hide in Theodore's lunchbox!" |
| Geranosaurus atavus | "Crane lizard" | 190 Ma | Early Jurassic | Herbivore | 0.4 m | 1.2 m | 3 kg | Broom (1911) | South Africa (Clarens Fm) | Dawn: "We only have his jaw, but it shows he had those classic heterodontosaur teeth for mashing plants." |
| Heterodontosaurus tucki | "Different-toothed lizard" | 195 Ma | Early Jurassic | Omnivore | 0.4 m | 1.2 m | 3 kg | Crompton (1962) | South Africa (Elliot Fm) | Michelangelo: "Check out those tusks! He’s got fangs like a vampire, but he's munching on greens. Radical!" |
| Lesothosaurus diagnosticus | "Lizard from Lesotho" | 195 Ma | Early Jurassic | Herbivore | 0.5 m | 2.0 m | 5 kg | Galton (1978) | Lesotho (Elliot Fm) | Tigger: "He’s got long, springy back legs! He was built for bouncing away from hungry Theropods! Hoo-hoo-hoo!" |
| Pisanosaurus mertii | "Pisano's lizard" | 230 Ma | Late Triassic | Herbivore | 0.3 m | 1.0 m | 4 kg | Casamiquela (1967) | Argentina (Ischigualasto) | Optimus Prime: "A veteran of the Triassic. Though fragmentary, he represents the earliest dawn of the bird-hipped spark." |
| Scutellosaurus lawleri | "Little shielded lizard" | 190 Ma | Early Jurassic | Herbivore | 0.4 m | 1.2 m | 3 kg | Colbert (1981) | USA (Kayenta Fm) | Bluey: "He’s got hundreds of tiny bony studs on his back! It's like he's wearing a suit of armor for a game of Knights!" |
| Tianyulong confuciusi | "Tianyu dragon" | 160 Ma | Late Jurassic | Omnivore | 0.3 m | 0.7 m | 1 kg | Zheng et al. (2009) | China (Tiaojishan Fm) | Bugs Bunny: "This doc is covered in fuzzy bristles! It turns out even the bird-hipped guys were wearing coats, doc!" |
Genus List for Holtz (2026): Hypsilophodontids & Basal Ornithopods
| Dinosaur | Name Meaning | Age | Time | Diet | Height | Length | Weight | Author | Region / Formation | Cartoon All-Stars's Comments/Facts |
| Callovosaurus leedsi | "Callovian lizard" | 163 Ma | Middle Jurassic | Herbivore | 1.0 m | 3.5 m | 120 kg | Lydekker (1889) | UK (Oxford Clay) | Thea Stilton: "One of the oldest known Dryosaurids! He was a very sophisticated runner for the Middle Jurassic." |
| Dryosaurus elderae | "Oak lizard" | 150 Ma | Late Jurassic | Herbivore | 1.5 m | 4.3 m | 90 kg | Carpenter (1994) | USA (Morrison Fm) | Bugs Bunny: "A forest doc! With those big eyes, he’s probably lookin' out for a certain 'wabbit' or a hungry Allosaur!" |
| Fulgurotherium australe | "Lightning beast" | 110 Ma | Early Cretaceous | Herbivore | 0.6 m | 2.0 m | 15 kg | von Huene (1932) | Australia (Lightning Ridge) | Bluey: "He’s found in a place called Lightning Ridge! That is the coolest name for a backyard ever, for real life!" |
| Hypsilophodon foxii | "High-crested tooth" | 125 Ma | Early Cretaceous | Herbivore | 0.6 m | 2.0 m | 20 kg | Huxley (1869) | UK (Wessex Fm) | Brainy Smurf: "A classic! We once thought he climbed trees, but his anatomy proves he was strictly a ground-speed specialist." |
| Kulindadromeus zabaikalicus | "Kulinda runner" | 160 Ma | Late Jurassic | Herbivore | 0.5 m | 1.5 m | 5 kg | Godefroit (2014) | Russia (Kulinda) | Winnie the Pooh: "He has scales on his tail but fluffy fur on his tummy. He looks quite soft for a dinosaur, oh bother." |
| Loncosaurus argentinus | "Chief lizard" | 75 Ma | Late Cretaceous | Herbivore | 1.0 m | 3.0 m | 70 kg | Ameghino (1898) | Argentina (Cardiel Fm) | Optimus Prime: "A mysterious spark. Though only known from a femur, he represents the endurance of his kind in the south." |
| Nanosaurus agilis | "Dwarf lizard" | 150 Ma | Late Jurassic | Herbivore | 0.6 m | 2.0 m | 10 kg | Marsh (1877) | USA (Morrison Fm) | Alvin: "He's tiny and agile—just like me! I bet he could outrun a dinosaur twice his size with those legs!" |
| Parksosaurus warreni | "Parks' lizard" | 70 Ma | Late Cretaceous | Herbivore | 1.0 m | 2.5 m | 45 kg | Sternberg (1937) | Canada (Horseshoe Canyon) | Geronimo Stilton: "A very sturdy little fellow! He lived alongside the giants but kept a very 'low-squeak' profile." |
| Siluosaurus zhanggiani | "Silk Road lizard" | 125 Ma | Early Cretaceous | Herbivore | 0.4 m | 1.5 m | 8 kg | Dong (1997) | China (Xinjiang Group) | Dawn: "Named after the Silk Road! He brings a touch of ancient history to the world of paleontology." |
| Thescelosaurus garbanii | "Wonderful lizard" | 66 Ma | Late Cretaceous | Herbivore | 1.2 m | 4.0 m | 250 kg | Morris (1976) | USA (Hell Creek, Lance Fm) | Garfield: "Finally, a dinosaur that’s built for stability. He looks like he wouldn't mind sitting around and doing nothing." |
| Valdosaurus canaliculatus | "Wealden lizard" | 125 Ma | Early Cretaceous | Herbivore | 1.0 m | 3.0 m | 70 kg | Galton (1975) | UK / Niger (Wessex Fm) | Michelangelo: "This dude was a world traveler! Found in England and Africa—talk about a radical road trip!" |
| Zephyrosaurus schaffi | "West wind lizard" | 110 Ma | Early Cretaceous | Herbivore | 0.8 m | 1.8 m | 20 kg | Sues (1980) | USA (Cloverly Fm) | Daffy Duck: "A 'west wind' lizard? He must be fast enough to blow my bill right off my face! It's despicable!" |
Genus List for Holtz (2026): Iguanodontids
| Dinosaur | Name Meaning | Age | Time | Diet | Height | Length | Weight | Author | Region / Formation | Cartoon All-Stars's Comments/Facts |
| Camptosaurus dispar | "Flexible lizard" | 155 Ma | Late Jurassic | Herbivore | 2.0 m | 6.0 m | 800 kg | Marsh (1879) | USA (Morrison Fm) | Brainy Smurf: "A very flexible dinosaur indeed! It could walk on two legs to run or four legs to graze. Very efficient!" |
| Iguanodon bernissartensis | "Iguana tooth" | 125 Ma | Early Cretaceous | Herbivore | 4.3 m | 11.8 m | 3,500 kg | Boulenger (1881) | Belgium (Sainte-Barbe Clays) | Bugs Bunny: "The guy who started it all, doc! Check out that thumb spike—he’s always ready to give a 'thumbs up'!" |
| Muttaburrasaurus langdoni | "Muttaburra lizard" | 105 Ma | Early Cretaceous | Herbivore | 3.5 m | 8.0 m | 2,800 kg | Bartholomai (1981) | Australia (Mackunda Fm) | Bluey: "He has a big hollow nose! Maybe he used it to play a trumpet or a didgeridoo? For real life!" |
| Ouranosaurus nigeriensis | "Brave lizard" | 115 Ma | Early Cretaceous | Herbivore | 3.0 m | 7.0 m | 2,200 kg | Taquet (1976) | Niger (Elrhaz Fm) | Daffy Duck: "A sail on his back?! First Spinosaurus, now this guy? Is everyone in Africa wearing a sail this season?!" |
| Probactrosaurus gobiensis | "Before Bactrosaurus" | 90 Ma | Late Cretaceous | Herbivore | 2.5 m | 5.5 m | 1,200 kg | Rozhdestvensky (1966) | China (Dashuigou Fm) | Optimus Prime: "A vital link in the chain of leadership. He shows the transition from spiked thumbs to the duck-billed kings." |
| Tenontosaurus dossi | "Sinew lizard" | 110 Ma | Early Cretaceous | Herbivore | 2.5 m | 7.0 m | 1,000 kg | Winkler (1997) | USA (Twin Mountains Fm) | Michelangelo: "This dude has a tail that just won't quit! It’s over half his body length—totally radical for balance!" |
Genus List for Holtz (2026): Hadrosaurids I
| Dinosaur | Name Meaning | Age | Time | Diet | Height | Length | Weight | Author | Region / Formation | Cartoon All-Stars's Comments/Facts |
| Brachylophosaurus canadensis | "Short-crested lizard from Canada" | 78 Ma | Late Cretaceous | Herbivore | 2.5 m | 9.0 m | 3,000 kg | Sternberg (1953) | USA/Canada (Judith River) | Thea Stilton: "Known for 'Leonardo,' the mummified dinosaur! We can actually see his skin and last meal. Fabumouse!" |
| Edmontosaurus regalis | "Edmonton lizard" | 72 Ma | Late Cretaceous | Herbivore | 3.5 m | 12.0 m | 4,000 kg | Lambe (1917) | Canada/USA (Horseshoe Canyon/Lance) | Garfield: "He has a fleshy comb on his head like a rooster. A twelve-meter chicken? I'm staying in bed." |
| Gryposaurus latidens | "Hook-nosed lizard" | 78 Ma | Late Cretaceous | Herbivore | 3.0 m | 8.5 m | 3,000 kg | Horner (1992) | USA (Two Medicine Fm) | Daffy Duck: "Hook-nosed? Finally, a dinosaur with a beak as distinguished and handsome as mine! It’s despicable!" |
| Hadrosaurus foulkii | "Sturdy lizard" | 80 Ma | Late Cretaceous | Herbivore | 3.0 m | 8.0 m | 3,000 kg | Leidy (1858) | USA (Woodbury Fm) | Bugs Bunny: "The original duck-bill, doc! The first dinosaur skeleton ever put on display in the whole world!" |
| Maiasaura peeblesorum | "Good mother lizard" | 76 Ma | Late Cretaceous | Herbivore | 2.5 m | 9.0 m | 3,000 kg | Horner (1979) | USA (Two Medicine Fm) | Papa Smurf: "A wonderful example of family! They nurtured their young in nests, just like we look after every Smurf." |
| Prosaurolophus maximus | "Before Saurolophus" | 76 Ma | Late Cretaceous | Herbivore | 3.0 m | 9.0 m | 3,500 kg | Brown (1916) | Canada (Dinosaur Park) | Brainy Smurf: "He has a small, solid crest between his eyes. According to my data, it was likely used for social signaling!" |
| Saurolophus osborni | "Lizard crest" | 70 Ma | Late Cretaceous | Herbivore | 3.5 m | 10.0 m | 3,000 kg | Brown (1912) | Canada (Horseshoe Canyon) | Dawn: "His spike-like crest was an extension of his nasal bones. He might have had a skin flap he could inflate!" |
| Shantungosaurus giganteus | "Shandong lizard" | 73 Ma | Late Cretaceous | Herbivore | 7.0 m | 16.0 m | 16,000 kg | Hu (1973) | China (Wangshi Group) | Optimus Prime: "A true behemoth. The largest non-sauropod dinosaur to ever walk the Earth. A giant among his kind." |
Genus List for Holtz (2026): Hadrosaurids II (Lambeosaurines)
| Dinosaur | Name Meaning | Age | Time | Diet | Height | Length | Weight | Author | Region / Formation | Cartoon All-Stars's Comments/Facts |
| Amurosaurus riabinini | "Amur River lizard" | 70 Ma | Late Cretaceous | Herbivore | 3.0 m | 8.0 m | 3,000 kg | Bolotsky (1991) | Russia (Udurchukan Fm) | Brainy Smurf: "A Russian relative of Corythosaurus! It shows how these crested dinosaurs spread across the northern continents." |
| Blasisaurus canudoi | "Blasi lizard" | 66 Ma | Late Cretaceous | Herbivore | 2.5 m | 7.0 m | 2,500 kg | Cruzado-Caballero (2010) | Spain (Arén Fm) | Thea Stilton: "One of the last lambeosaurs in Europe. It lived right up until the asteroid—a true survivor!" |
| Charonosaurus jiayinensis | "Charon's lizard" | 66 Ma | Late Cretaceous | Herbivore | 4.0 m | 10.0 m | 5,000 kg | Godefroit (2000) | China (Yuliangze Fm) | Optimus Prime: "Bearing a crest similar to Parasaurolophus, he was a titan of the East during the final days of the Mesozoic." |
| Corythosaurus casuarius | "Helmet lizard" | 76 Ma | Late Cretaceous | Herbivore | 3.0 m | 9.0 m | 4,000 kg | Brown (1914) | Canada/USA (Dinosaur Park/Lance) | Bugs Bunny: "Nice hat, doc! That crest looks just like a Cassowary bird's helmet. Stylish and scientific!" |
| Hypacrosaurus stebingeri | "Below the highest lizard" | 75 Ma | Late Cretaceous | Herbivore | 3.5 m | 9.0 m | 4,000 kg | Horner (1994) | USA (Two Medicine Fm) | Papa Smurf: "A very caring dinosaur. We’ve found their nests and eggs, proving they stayed together to raise their little ones." |
| Jaxartosaurus aralensis | "Jaxartes River lizard" | 85 Ma | Late Cretaceous | Herbivore | 3.0 m | 9.0 m | 3,500 kg | Riabinin (1937) | Kazakhstan (Syuk-Syuk Fm) | Geronimo Stilton: "A very early member of the family! He helps us map out how these 'fabumouse' crests first evolved." |
| Lambeosaurus magnicristatus | "Lambe's lizard with a large crest" | 75 Ma | Late Cretaceous | Herbivore | 4.0 m | 9.5 m | 4,500 kg | Sternberg (1935) | Canada (Dinosaur Park) | Alvin: "His crest looks like a giant hatchet! If he shook his head, he’d definitely get everyone’s attention in the herd!" |
| Magnapaulia laticaudus | "Paul's large lizard" | 73 Ma | Late Cretaceous | Herbivore | 6.0 m | 15.5 m | 8,000 kg | Prieto-Márquez (2012) | Mexico (El Gallo Fm) | Michelangelo: "Whoa! This dude is a giant! He’s got a super deep tail for swimming—totally radical for a beach day!" |
| Olorotitan arharensis | "Gigantic swan" | 70 Ma | Late Cretaceous | Herbivore | 4.0 m | 8.0 m | 3,500 kg | Godefroit (2003) | Russia (Udurchukan Fm) | Dawn: "He has such a long, elegant neck and a crest that looks like a fan. He really is as graceful as a swan." |
| Parasaurolophus walkeri | "Beside crested lizard" | 76 Ma | Late Cretaceous | Herbivore | 4.0 m | 10.0 m | 3,000 kg | Parks (1922) | Canada (Dinosaur Park) | Tigger: "Hoo-hoo-hoo! That crest is a built-in trumpet! I bet he could play a louder song than any Tigger!" |
| Tlatolophus galorum | "Word crest" | 72 Ma | Late Cretaceous | Herbivore | 3.5 m | 10.0 m | 4,000 kg | Ramírez-Velasco (2021) | Mexico (Cerro del Pueblo) | Bluey: "His crest is shaped like a comma! It’s like he’s a dinosaur that’s always got something to say, for real life!" |
| Tsintaosaurus spinorhinus | "Qingdao lizard" | 70 Ma | Late Cretaceous | Herbivore | 3.5 m | 10.0 m | 3,000 kg | Young (1958) | China (Wangshi Group) | Daffy Duck: "A 'unicorn' dinosaur? Finally, someone who understands the importance of a bold facial accessory! It's despicable!" |
| Velafrons coahuilensis | "Sailed forehead" | 73 Ma | Late Cretaceous | Herbivore | 3.0 m | 7.5 m | 3,000 kg | Gates (2007) | Mexico (Cerro del Pueblo) | Garfield: "A Mexican duck-bill with a sail on his head. As long as he’s not sailing toward my lasagna, we’re cool." |
Genus List for Holtz (2026): Psittacosaurids & Protoceratopsids
| Dinosaur | Name Meaning | Age | Time | Diet | Height | Length | Weight | Author | Region / Formation | Cartoon All-Stars's Comments/Facts |
| Aquilops americanus | "Eagle face from America" | 106 Ma | Early Cretaceous | Herbivore | 0.2 m | 0.6 m | 1.5 kg | Farke (2014) | USA (Cloverly Fm) | Thea Stilton: "The earliest ceratopsian in North America! He’s tiny, but that hooked beak is just 'fabumouse' for nipping plants." |
| Bagaceratops rozhdestvenskyi | "Small horned face" | 75 Ma | Late Cretaceous | Herbivore | 0.4 m | 1.0 m | 20 kg | Maryanska (1975) | Mongolia (Barun Goyot Fm) | Brainy Smurf: "A very modest frill and just a bump for a horn. According to my calculations, he's a perfect 'intermediate' form!" |
| Leptoceratops gracilis | "Slender horned face" | 66 Ma | Late Cretaceous | Herbivore | 0.8 m | 2.5 m | 100 kg | Brown (1914) | USA/Canada (Scollard Fm) | Bugs Bunny: "A late-bloomer, doc! He lived right alongside T. rex but kept that old-school, no-horn look. Very retro!" |
| Microceratus gobiensis | "Small horn" | 80 Ma | Late Cretaceous | Herbivore | 0.2 m | 0.6 m | 2 kg | Bohlin (1953) | Mongolia (Bayn Shiree Fm) | Alvin: "He’s built like a sprinter! I bet he could zip through the desert before a predator even saw him blink!" |
| Montanoceratops cerorhynchus | "Montana horned face" | 70 Ma | Late Cretaceous | Herbivore | 1.0 m | 3.0 m | 150 kg | Brown (1942) | USA (St. Mary River Fm) | Optimus Prime: "A sturdy scout of the mountains. He possessed a small nasal horn, signaling the coming age of the great horned kings." |
| Protoceratops hellenikorhinus | "First horned face" | 72 Ma | Late Cretaceous | Herbivore | 0.6 m | 2.0 m | 150 kg | Lambert (2001) | Mongolia (Bayan Mandahu) | Daffy Duck: "The 'sheep of the Cretaceous.' Though I'd like to see a sheep try to bite back with those jaws! It’s despicable!" |
| Psittacosaurus meileyingensis | "Meileying parrot lizard" | 120 Ma | Early Cretaceous | Herbivore | 0.5 m | 2.0 m | 20 kg | Sereno (1988) | China (Jiufotang Fm) | Winnie the Pooh: "He has a face like a parrot and bristles on his tail like a very prickly hairbrush. Oh bother, he is quite unique." |
Genus List for Holtz (2026): Ceratopsids I (Chasmosaurines)
| Dinosaur | Name Meaning | Age | Time | Diet | Height | Length | Weight | Author | Region / Formation | Cartoon All-Stars's Comments/Facts |
| Anchiceratops ornatus | "Near horned face" | 71 Ma | Late Cretaceous | Herbivore | 2.5 m | 6.0 m | 2,000 kg | Brown (1914) | Canada (Horseshoe Canyon) | Thea Stilton: "An incredibly 'ornate' frill! It was lined with small bony knobs and horns that made it look very stylish indeed." |
| Arrhinoceratops brachyops | "No-nose horned face" | 70 Ma | Late Cretaceous | Herbivore | 2.0 m | 6.0 m | 2,000 kg | Parks (1925) | Canada (Horseshoe Canyon) | Brainy Smurf: "A bit of a misnomer! It actually does have a nose horn, though it is quite short. Always check the fossils, not just the names!" |
| Chasmosaurus belli | "Opening lizard" | 76 Ma | Late Cretaceous | Herbivore | 2.0 m | 5.0 m | 2,000 kg | Lambe (1902) | Canada (Dinosaur Park) | Bugs Bunny: "Check out those 'windows' in the frill, doc! Those big openings (fenestrae) kept that massive head light enough to carry!" |
| Pentaceratops sternbergii | "Five-horned face" | 75 Ma | Late Cretaceous | Herbivore | 4.5 m | 6.5 m | 4,500 kg | Osborn (1923) | USA (Fruitland Fm) | Daffy Duck: "Five horns?! Two on the brow, one on the nose, and two on the cheeks! This guy was over-prepared! It’s despicable!" |
| Torosaurus latus | "Perforated lizard" | 66 Ma | Late Cretaceous | Herbivore | 3.0 m | 8.0 m | 6,000 kg | Marsh (1891) | USA/Canada (Hell Creek, Laramie/ Frenchman Fm) | Optimus Prime: "The record holder for the largest skull of any terrestrial vertebrate. A massive shield to protect the spark within." |
| Triceratops horridus | "Three-horned face" | 66 Ma | Late Cretaceous | Herbivore | 3.0 m | 9.0 m | 9,000 kg | Marsh (1889) | USA (Hell Creek, Lance Fm) | Michelangelo: "The GOAT of the horn-heads! Solid bone frill and those wicked brow horns—totally radical and totally tough!" |
Genus List for Holtz (2026): Ceratopsids II (Centrosaurines)
| Dinosaur | Name Meaning | Age | Time | Diet | Height | Length | Weight | Author | Region / Formation | Cartoon All-Stars's Comments/Facts |
| Albertaceratops nesmoi | "Alberta horned face" | 77 Ma | Late Cretaceous | Herbivore | 2.0 m | 5.8 m | 2,000 kg | Ryan (2007) | Canada (Oldman Fm) | Thea Stilton: "A very special find! He has long brow horns like a Chasmosaur, but the body of a Centrosaur. A 'fabumouse' mix!" |
| Avaceratops lammersi | "Ava's horned face" | 77 Ma | Late Cretaceous | Herbivore | 1.5 m | 4.0 m | 1,000 kg | Dodson (1986) | USA (Judith River Fm) | Brainy Smurf: "A relatively small ceratopsid. Its frill is quite simple and lacks the deep notches seen in its larger cousins." |
| Brachyceratops montanensis | "Short horned face" | 75 Ma | Late Cretaceous | Herbivore | 1.5 m | 4.0 m | 1,000 kg | Gilmore (1914) | USA (Two Medicine Fm) | Winnie the Pooh: "He is a very short-faced friend. Some think he might just be a youngster of another dinosaur, oh bother." |
| Centrosaurus apertus | "Pointed lizard" | 76 Ma | Late Cretaceous | Herbivore | 2.5 m | 6.0 m | 2,500 kg | Lambe (1904) | Canada (Dinosaur Park) | Optimus Prime: "A disciplined soldier of the plains. We find them in great bonebeds, suggesting they stood together until the end." |
| Coronosaurus brinkmani | "Crown lizard" | 76 Ma | Late Cretaceous | Herbivore | 2.0 m | 5.0 m | 2,000 kg | Ryan (2012) | Canada (Oldman Fm) | Dawn: "His frill is covered in tiny, finger-like horns that look like a crown! He really is the royalty of the Cretaceous." |
| Monoclonius crassus | "Single sprout" | 75 Ma | Late Cretaceous | Herbivore | 2.0 m | 5.0 m | 2,000 kg | Cope (1876) | USA (Judith River Fm) | Bugs Bunny: "A classic name, doc! Though nowadays, scientists think he might just be a Centrosaurus in disguise!" |
| Nasutoceratops titusi | "Large-nosed horned face" | 76 Ma | Late Cretaceous | Herbivore | 2.5 m | 4.5 m | 1,500 kg | Sampson (2013) | USA (Kaiparowits Fm) | Michelangelo: "Check out those cow horns! This dude looks more like a prehistoric bull than a dinosaur. Totally tubular!" |
| Pachyrhinosaurus lakustai | "Thick-nosed lizard" | 72 Ma | Late Cretaceous | Herbivore | 3.3 m | 8.5 m | 4,000 kg | Currie (2008) | Canada/USA (Wapiti, Frenchman/Laramie Fm) | Alvin: "He doesn't have a horn—he has a giant 'boss' of bone on his nose! Imagine the head-butting power of that guy!" |
| Sinoceratops zhuchengensis | "Chinese horned face" | 73 Ma | Late Cretaceous | Herbivore | 3.0 m | 6.0 m | 2,000 kg | Xu (2010) | China (Wangshi Group) | Papa Smurf: "The first large ceratopsid found in Asia! It shows our horned friends were travelers across the ancient world." |
| Styracosaurus ovatus | "Spiked lizard" | 75 Ma | Late Cretaceous | Herbivore | 2.5 m | 5.5 m | 2,500 kg | Lambe (1913) | USA/Canada (Two Medicine) | Daffy Duck: "Look at all those spikes! Six long ones on the frill and a giant one on the nose! He's a walking pincushion! It's despicable!" |
Genus List for Holtz (2026): Pachycephalosaurids
| Dinosaur | Name Meaning | Age | Time | Diet | Height | Length | Weight | Author | Region / Formation | Cartoon All-Stars's Comments/Facts |
| Alaskacephale gangloffi | "Alaska head" | 70 Ma | Late Cretaceous | Herbivore | 1.0 m | 2.5 m | 40 kg | Sullivan (2006) | USA (Prince Creek Fm) | Optimus Prime: "A hardy survivor of the far north. He endured the polar winters with a spark as cold as the ice." |
| Dracorex hogwartsia | "Dragon king of Hogwarts" | 66 Ma | Late Cretaceous | Herbivore | 1.0 m | 3.0 m | 50 kg | Bakker et al. (2006) | USA/Canada (Hell Creek/Frenchman Fm) | Bugs Bunny: "Named after a magic school, doc! But keep your hat on—he might just be a teenage Pachycephalosaurus!" |
| Goyocephale lattimorei | "Elegant head" | 76 Ma | Late Cretaceous | Herbivore | 0.6 m | 2.0 m | 15 kg | Perle (1982) | Mongolia (Djadochta Fm) | Thea Stilton: "He has a flat, wedge-shaped head rather than a dome. A very 'elegant' and early look for the family!" |
| Gravitholus albertae | "Heavy dome" | 75 Ma | Late Cretaceous | Herbivore | 1.0 m | 3.0 m | 50 kg | Wall & Galton (1979) | Canada (Dinosaur Park) | Brainy Smurf: "His skull is exceptionally wide! Statistically speaking, he was the 'broad-head' of the Canadian plains." |
| Homalocephale calathocercos | "Even head" | 70 Ma | Late Cretaceous | Herbivore | 0.6 m | 1.8 m | 20 kg | Maryanska (1974) | Mongolia (Nemegt Fm) | Dawn: "Like Goyocephale, he has a flat head. He also has a very wide pelvis—maybe for giving birth to large babies?" |
| Pachycephalosaurus wyomingensis | "Thick-headed lizard" | 66 Ma | Late Cretaceous | Herbivore | 2.0 m | 4.5 m | 450 kg | Brown (1943) | USA (Hell Creek, Lance Fm) | Garfield: "The big boss of the block. With a skull that thick, I bet he never got a headache. I wish I could say the same." |
| Prenocephale prenes | "Sloping head" | 70 Ma | Late Cretaceous | Herbivore | 1.0 m | 2.4 m | 40 kg | Maryanska (1974) | Mongolia (Nemegt Fm) | Michelangelo: "Check out that high, rounded dome! This dude was the ultimate helmet-wearer of the Gobi Desert. Radical!" |
| Sphaerotholus edmontonensis | "Sphericle dome" | 73 Ma | Late Cretaceous | Herbivore | 0.8 m | 2.0 m | 40 kg | Williamson (2002) | Canada (Horseshoe Canyon) | Alvin: "He’s got a head like a bowling ball! I wonder if he ever accidentally knocked over his friends like pins?" |
| Stegoceras validum | "Horned roof" | 75 Ma | Late Cretaceous | Herbivore | 0.8 m | 2.0 m | 40 kg | Lambe (1902) | USA/Canada (Belly River) | Daffy Duck: "Small but mighty! He’s the most well-known of the bunch. Don't let the size fool you; he's a spitfire! It's despicable!" |
| Stygimoloch spinifer | "Thorny devil from the Styx" | 66 Ma | Late Cretaceous | Herbivore | 1.2 m | 3.0 m | 80 kg | Galton (1983) | USA (Hell Creek Fm) | Bluey: "He’s got giant spikes on the back of his head! He looks like a dragon from a fairy tale, for real life!" |
| Tylocephale gilmorei | "Swelling head" | 72 Ma | Late Cretaceous | Herbivore | 0.8 m | 2.0 m | 40 kg | Maryanska (1974) | Mongolia (Barun Goyot Fm) | Winnie the Pooh: "His dome is very tall and narrow. It looks a bit like a honey pot sitting on his head. How nice." |
Genus List for Holtz (2026): Stegosaurs & Basal Thyreophorans
| Dinosaur | Name Meaning | Age | Time | Diet | Height | Length | Weight | Author | Region / Formation | Cartoon All-Stars's Comments/Facts |
| Chungkingosaurus jiangbeiensis | "Chongqing lizard" | 160 Ma | Late Jurassic | Herbivore | 1.5 m | 4.0 m | 1,000 kg | Dong (1983) | China (Upper Shaximiao) | Brainy Smurf: "A very small stegosaur! It has three pairs of tail spikes. Statistically, that's more than its larger cousins!" |
| Craterosaurus pottonensis | "Bowl lizard" | 115 Ma | Early Cretaceous | Herbivore | 1.5 m | 4.0 m | 1,000 kg | Seeley (1874) | UK (Woburn Sands) | Thea Stilton: "Known only from a partial skull bone. It’s a mystery that makes my journalist whiskers tingle!" |
| Dacentrurus armatus | "Pointed tail" | 154 Ma | Late Jurassic | Herbivore | 3.0 m | 8.0 m | 5,000 kg | Lucas (1902) | Europe (Lourinhã Fm) | Optimus Prime: "A massive defender of the European front. Unlike others, it had spikes stretching all the way up its back." |
| Gigantspinosaurus sichuanensis | "Giant spined lizard" | 160 Ma | Late Jurassic | Herbivore | 1.5 m | 4.2 m | 700 kg | Ouyang (1992) | China (Upper Shaximiao) | Michelangelo: "Whoa! This dude has giant spikes growing out of his shoulders! That is totally radical armor, dudes!" |
| Huayangosaurus taibaii | "Huayang lizard" | 165 Ma | Middle Jurassic | Herbivore | 2.0 m | 4.5 m | 1,500 kg | Dong (1982) | China (Lower Shaximiao) | Dawn: "He’s the most primitive stegosaur. He still has teeth in the front of his beak to help him munch on soft plants!" |
| Isaberrysaura mollensis | "Isabel Berry's lizard" | 170 Ma | Middle Jurassic | Herbivore | 2.0 m | 6.0 m | 2,500 kg | Salgado (2017) | Argentina (Los Molles Fm) | Geronimo Stilton: "A very strange discovery! He was originally thought to be an ornithopod, but he might be a basal stegosaur!" |
| Kentrosaurus aethiopicus | "Spiked lizard" | 152 Ma | Late Jurassic | Herbivore | 1.5 m | 4.5 m | 1,100 kg | Hennig (1915) | Tanzania (Tendaguru Fm) | Tigger: "He’s got spikes everywhere! Shoulders, back, and tail! He’s the pokiest bouncer in the whole jungle! Hoo-hoo-hoo!" |
| Lexovisaurus durobrivensis | "Lexovi lizard" | 164 Ma | Middle Jurassic | Herbivore | 2.0 m | 5.0 m | 2,000 kg | Hoffstetter (1957) | UK/France (Oxford Clay) | Bugs Bunny: "One of the first stegosaurs found in Europe, doc! He’s got some pretty sharp-looking shoulder armor!" |
| Miragaia longicollum | "Miragaia" (Location) | 150 Ma | Late Jurassic | Herbivore | 2.0 m | 6.5 m | 2,000 kg | Mateus (2009) | Portugal (Lourinhã Fm) | Papa Smurf: "He has a very long neck for a stegosaur—almost like a sauropod! He must have liked the high-up berries." |
| Scelidosaurus harrisonii | "Limb lizard" | 191 Ma | Early Jurassic | Herbivore | 1.2 m | 4.0 m | 270 kg | Owen (1859) | UK (Blue Lias) | Daffy Duck: "The common ancestor! He’s the grandpappy of both stegosaurs and ankylosaurs! It's a heavy responsibility!" |
| Stegosaurus stenops | "Roofed lizard" | 150 Ma | Late Jurassic | Herbivore | 4.0 m | 9.5 m | 6,000 kg | Marsh (1887) | USA (Morrison Fm) | Garfield: "The king of the plate-heads. Big plates, small brain, and spikes on the tail. Sounds like a typical Monday." |
| Wuerhosaurus ordosensis | "Wuerho lizard" | 113 Ma | Early Cretaceous | Herbivore | 2.0 m | 7.0 m | 4,000 kg | Dong (1973) | China (Lianmuqin Fm) | Alvin: "His plates are super flat and wide, like he’s carrying a bunch of surfboards on his back! Surf's up, dino-style!" |
| Yingshanosaurus jichuanensis | "Yingshan lizard" | 155 Ma | Late Jurassic | Herbivore | 1.5 m | 5.0 m | 1,200 kg | Zhu (1994) | China (Upper Shaximiao) | Winnie the Pooh: "He had wing-like spines on his shoulders. He looks a bit like he wanted to fly, but was much too heavy." |
Genus List for Holtz (2026): Nodosaurids
| Dinosaur | Name Meaning | Age | Time | Diet | Height | Length | Weight | Author | Region / Formation | Cartoon All-Stars's Comments/Facts |
| Dracopelta zbyszewskii | "Dragon shield" | 150 Ma | Late Jurassic | Herbivore | 0.6 m | 2.0 m | 300 kg | Galton (1980) | Portugal (Lourinhã Fm) | Michelangelo: "One of the oldest armored dudes on the list! He’s like the original skater with built-in pads!" |
| Edmontonia rugosidens | "From Edmonton" | 72 Ma | Late Cretaceous | Herbivore | 2.0 m | 6.6 m | 3,000 kg | Gilmore (1930) | Canada (Horseshoe Canyon) | Optimus Prime: "A fortress on legs. His massive shoulder spikes were the ultimate deterrent against any predator." |
| Gastonia lorriemcwhinneyae | "Gaston's lizard" | 125 Ma | Early Cretaceous | Herbivore | 1.0 m | 5.0 m | 1,900 kg | Kirkland (1998) | USA (Cedar Mountain) | Daffy Duck: "Look at those scissor-like spikes on the tail! One swish and—snip—no more tail-gating! It's genius!" |
| Hylaeosaurus armatus | "Forest lizard" | 136 Ma | Early Cretaceous | Herbivore | 1.2 m | 5.0 m | 2,000 kg | Mantell (1833) | UK (Wealden Group) | Papa Smurf: "One of the first three dinosaurs ever discovered! He has a very important place in our history books." |
| Nodosaurus textilis | "Knobbed lizard" | 95 Ma | Late Cretaceous | Herbivore | 1.5 m | 5.0 m | 2,500 kg | Marsh (1889) | USA (Frontier Fm) | Brainy Smurf: "His name comes from the 'woven' pattern of his armor scales. A very orderly arrangement of protection!" |
| Panoplosaurus mirus | "Completely armored lizard" | 76 Ma | Late Cretaceous | Herbivore | 2.0 m | 7.0 m | 3,500 kg | Lambe (1919) | Canada (Dinosaur Park) | Thea Stilton: "Unlike his cousins, he didn't have giant spikes—just a very thick, smooth suit of bony plates. Very chic!" |
| Polacanthus foxii | "Many spines" | 125 Ma | Early Cretaceous | Herbivore | 1.0 m | 5.0 m | 2,000 kg | Owen (1865) | UK (Wessex Fm) | Bugs Bunny: "He’s got a solid 'sacral shield' over his hips, doc! It’s like he’s wearing a permanent suit of armor plating!" |
| Sauropelta edwardsorum | "Lizard shield" | 108 Ma | Early Cretaceous | Herbivore | 1.5 m | 5.2 m | 1,500 kg | Ostrom (1970) | USA (Cloverly Fm) | Tigger: "Those neck spikes are huge! You definitely wouldn't want to play leapfrog with this fellow! Hoo-hoo-hoo!" |
| Sauroplites scutiger | "Lizard hoplite" | 125 Ma | Early Cretaceous | Herbivore | 1.2 m | 6.0 m | 2,000 kg | Bohlin (1953) | China (Osh Fm) | Dawn: "Named after a Greek soldier! He carries his shield everywhere he goes, just like a brave warrior." |
| Silvisaurus condrayi | "Forest lizard" | 100 Ma | Late Cretaceous | Herbivore | 1.0 m | 4.0 m | 1,000 kg | Eaton (1960) | USA (Dakota Fm) | Winnie the Pooh: "He lived in the woods. I think he’d be very good at hiding among the trees and the honey bushes." |
| Struthiosaurus transilvanicus | "Ostrich lizard" | 68 Ma | Late Cretaceous | Herbivore | 0.8 m | 2.5 m | 300 kg | Nopcsa (1915) | Romania (Sânpetru Fm) | Bluey: "He’s a little dwarf dinosaur! He lived on an island and stayed small, like a puppy that never grows up!" |
Genus List for Holtz (2026): Ankylosaurids
| Dinosaur | Name Meaning | Age | Time | Diet | Height | Length | Weight | Author | Region / Formation | Cartoon All-Stars's Comments/Facts |
| Ankylosaurus magniventris | "Fused lizard with a great belly" | 66 Ma | Late Cretaceous | Herbivore | 3.7 m | 10.1 m | 6,000 kg | Brown (1908) | USA (Hell Creek, Lance Fm) | Optimus Prime: "The ultimate guardian. With a club of solid bone and armor like a tank, he is the apex of defense." |
| Crichtonsaurus bohlini | "Crichton's lizard" | 90 Ma | Late Cretaceous | Herbivore | 1.2 m | 3.5 m | 1,000 kg | Dong (2002) | China (Sunjiawan Fm) | Thea Stilton: "Named after the author of Jurassic Park! A very 'thrilling' addition to the ankylosaur family tree!" |
| Euoplocephalus tutus | "Well-armored head" | 76 Ma | Late Cretaceous | Herbivore | 2.0 m | 6.0 m | 2,500 kg | Lambe (1902) | Canada (Dinosaur Park) | Bugs Bunny: "He’s even got armored eyelids, doc! Talk about not wanting to get a poke in the eye!" |
| Minotaurasaurus ramachandrani | "Minotaur lizard" | 75 Ma | Late Cretaceous | Herbivore | 1.3 m | 4.2 m | 1,500 kg | Miles (2009) | Mongolia (Djadochta Fm) | Daffy Duck: "He looks like a monster from a myth! Those bull-like horns on his head are terrifying! It's despicable!" |
| Pinacosaurus grangeri | "Plank lizard" | 75 Ma | Late Cretaceous | Herbivore | 1.0 m | 5.0 m | 1,900 kg | Gilmore (1933) | Mongolia (Djadochta Fm) | Brainy Smurf: "We’ve found many juveniles huddling together. Statistically, they were very social youngsters!" |
| Saichania chulsanensis | "Beautiful one" | 75 Ma | Late Cretaceous | Herbivore | 2.2 m | 6.6 m | 3,000 kg | Maryanska (1977) | Mongolia (Barun Goyot) | Winnie the Pooh: "Beautiful? He’s very bumpy and prickly, but I suppose everyone is beautiful to someone. Oh bother." |
| Scolosaurus thronus | "Stake lizard" | 76 Ma | Late Cretaceous | Herbivore | 1.8 m | 6.0 m | 2,000 kg | Lambe (1919) | Canada (Dinosaur Park) | Michelangelo: "Check out the spikes on this dude! He’s like a walking fortress of attitude. Totally radical!" |
| Talarurus plicatospineus | "Basket tail" | 90 Ma | Late Cretaceous | Herbivore | 1.5 m | 5.0 m | 2,000 kg | Maleev (1952) | Mongolia (Bayn Shiree) | Alvin: "His tail bones are woven together like a basket to make that club extra stiff! Batter up, dinosaurs!" |
| Tarchia teresae | "Brainy one" | 72 Ma | Late Cretaceous | Herbivore | 2.2 m | 8.0 m | 4,500 kg | Maryanska (1977) | Mongolia (Barun Goyot) | Brainy Smurf: "Aha! A dinosaur named for its large braincase! Though, to be fair, he was still mostly 'armor' and less 'thinker'!" |
Genus List for Holtz (2026): Fish, Sirenians, & Whales
| Genus | Name Meaning | Age | Time | Diet | Height/Depth | Length | Weight | Author | Region / Formation | Cartoon All-Stars's Comments/Facts |
| Acanthodes fritschi | "Thorny" | 290 Ma | Early Permian | Filter-feeder | 0.1 m | 0.3 m | 0.5 kg | Agassiz (1833) | Czech Republic | Brainy Smurf: "A 'spiny shark,' though it's actually a basal bony fish! Statistically, it's one of the last of its kind before extinction." |
| Stethacanthus praecursor | "Chest spike" | 350 Ma | Carboniferous | Piscivore | 0.4 m | 0.7 m | 5 kg | Newberry (1889) | USA (Bear Gulch) | Daffy Duck: "He’s got an ironing board on his head! Covered in spikes! Is he a shark or a piece of furniture?! It's despicable!" |
| Scapanorhynchus texanus | "Spade snout" | 80 Ma | Late Cretaceous | Piscivore | 0.5 m | 3.0 m | 200 kg | Woodward (1889) | USA (Eagle Ford Fm) | Michelangelo: "The OG Goblin Shark! That long snout is totally radical for sensing fish hiding in the sand, dudes!" |
| Hydrodamalis gigas | "Water heifer" | 0.0002 Ma | Holocene | Herbivore | 1.5 m | 9.0 m | 10,000 kg | Zimmermann (1794) | Russia (Commander Is.) | Winnie the Pooh: "A giant sea cow. He was very gentle and liked eating kelp, but he is gone now. Oh bother, it's quite sad." |
| Imagotaria downsi | "Image of a sea lion" | 10 Ma | Late Miocene | Piscivore | 1.0 m | 2.5 m | 300 kg | Mitchell (1968) | USA (Sisquoc Fm) | Thea Stilton: "An early walrus, but he didn't have the long tusks yet! He looked more like a very 'fabumouse' sea lion." |
| Rytiodus heali | "Wrinkled tooth" | 20 Ma | Miocene | Herbivore | 1.0 m | 6.0 m | 3,000 kg | Lartet (1866) | France/Libya | Bluey: "He’s a dugong with two little tusks! He’s like a vacuum cleaner for the sea floor, for real life!" |
| Basilosaurus isis | "King lizard" | 37 Ma | Eocene | Carnivore | 1.5 m | 18.0 m | 15,000 kg | Andrews (1904) | Egypt (Wadi El Hitan) | Optimus Prime: "A deceptive name; he is no lizard, but a mighty whale. He still possesses tiny back legs—remnants of his land-bound past." |
| Cetotherium furlongi | "Whale beast" | 10 Ma | Miocene | Filter-feeder | 1.5 m | 5.0 m | 1,000 kg | Brandt (1843) | Europe/Asia | Bugs Bunny: "A pint-sized baleen whale, doc! He was the favorite snack for the big sharks like Megalodon. Hard life for a little guy!" |
| Livyatan melvillei | "Leviathan" | 9 Ma | Miocene | Carnivore | 4.0 m | 17.5 m | 50,000 kg | Lambert (2010) | Peru (Pisco Fm) | Tigger: "A sperm whale with teeth the size of a Tigger's arm! He’s the bounce-iest, bite-iest whale in the sea! Hoo-hoo-hoo!" |
| Protocetus atavus | "First whale" | 45 Ma | Middle Eocene | Piscivore | 0.6 m | 2.5 m | 300 kg | Fraas (1904) | Egypt (Gebel Mokattam) | Papa Smurf: "A very early whale that still had a tail like a land animal, but flippers for hands. He was just learning how to swim!" |
Genus List for Holtz (2026): Birds of the Past
| Genus | Name Meaning | Age | Time | Diet | Height | Length / Wingspan | Weight | Author | Region / Formation | Cartoon All-Stars's Comments/Facts |
| Aepyornis titan | "Tall bird" | 0.001 Ma | Holocene | Herbivore | 3.0 m | 3.0 m | 700 kg | Andrews (1894) | Madagascar | Winnie the Pooh: "The Elephant Bird! He laid eggs so big that a hundred honey bees could live inside. Oh bother, what a feast!" |
| Argentavis magnificens | "Magnificent Argentine bird" | 6 Ma | Late Miocene | Carnivore | 1.8 m | 7.0 m (WS) | 70 kg | Campbell (1980) | Argentina (Epecuén Fm) | Optimus Prime: "A titan of the skies. Its wingspan was equal to a small airplane, allowing it to soar on the thermals of the Andes." |
| Dinornis maximus | "Terrible bird" | 0.0006 Ma | Holocene | Herbivore | 3.6 m | 3.5 m | 230 kg | Owen (1843) | New Zealand | Bugs Bunny: "The Giant Moa, doc! No wings at all—not even little ones! He was all legs and neck. A real skyscraper of a bird!" |
| Emeus crassus | "Eastern Moa" | 0.0006 Ma | Holocene | Herbivore | 1.5 m | 1.5 m | 70 kg | Owen (1846) | New Zealand | Bluey: "He’s a shorter, sturdier Moa! He’s got big floppy feet for walking through the forests, for real life!" |
| Harpagornis moorei | "Grappling hook bird" | 0.0006 Ma | Holocene | Carnivore | 0.9 m | 3.0 m (WS) | 15 kg | Haast (1872) | New Zealand | Daffy Duck: "The Haast's Eagle! He hunted the giant Moas! Imagine a bird of prey with talons like tiger claws! It's despicable!" |
| Hesperornis crassipes | "Western bird" | 80 Ma | Late Cretaceous | Piscivore | 1.5 m | 1.8 m (L) | 20 kg | Marsh (1876) | USA (Niobrara Fm) | Brainy Smurf: "A flightless diving bird with teeth! Statistically, he was more like a reptilian penguin than a modern bird!" |
| Ichthyornis dispar | "Fish bird" | 85 Ma | Late Cretaceous | Piscivore | 0.2 m | 0.6 m (WS) | 0.5 kg | Marsh (1872) | USA (Niobrara Fm) | Thea Stilton: "He looks just like a modern seagull, but if you look closely at his beak, he’s still hiding tiny dinosaur teeth! Fabumouse!" |
| Osteodontornis orri | "Bony-toothed bird" | 10 Ma | Miocene | Piscivore | 1.2 m | 6.0 m (WS) | 30 kg | Howard (1957) | USA (Monterey Fm) | Michelangelo: "Dude has jagged bone spikes sticking out of his beak! He’s like a radical, flying serrated knife. Totally tubular for catching fish!" |
Genus List for Holtz (2026): Reptiles, Synapsids, & Early Mammals
| Genus | Name Meaning | Age | Time | Diet | Height | Length | Weight | Author | Region / Formation | Cartoon All-Stars's Comments/Facts |
| Deinosuchus riograndensis | "Terrible crocodile" | 73 Ma | Late Cretaceous | Carnivore | 1.2 m | 10.0 m | 5,000 kg | Colbert (1954) | USA (Aguja Fm) | Optimus Prime: "A titan of the riverbanks. He was powerful enough to ambush even the mightiest dinosaurs that came to drink." |
| Desmatosuchus smalli | "Link crocodile" | 210 Ma | Late Triassic | Herbivore | 1.0 m | 4.5 m | 300 kg | Parker (2005) | USA (Chinle Fm) | Daffy Duck: "He’s an armored reptile with giant spikes on his shoulders! He looks like a tank with a bad attitude! It's despicable!" |
| Euparkeria capensis | "Parker's good animal" | 245 Ma | Middle Triassic | Insectivore | 0.2 m | 0.6 m | 1 kg | Broom (1913) | South Africa (Upper Beaufort) | Brainy Smurf: "A very important ancestor! Statistically, he’s one of the closest relatives to the group that became dinosaurs and pterosaurs!" |
| Longisquama insignis | "Long scales" | 235 Ma | Middle Triassic | Insectivore | 0.05 m | 0.15 m | 0.1 kg | Sharov (1970) | Kyrgyzstan (Madygen Fm) | Thea Stilton: "He has long, hockey-stick-shaped scales on his back! Maybe they were for gliding, or just looking 'fabumouse'!" |
| Metriorhynchus brevirostris | "Moderate snout" | 155 Ma | Late Jurassic | Piscivore | 0.5 m | 3.0 m | 250 kg | Meyer (1830) | Europe (Oxford Clay) | Michelangelo: "A crocodile that traded its legs for flippers and a shark tail? That is totally radical ocean-surfing, dudes!" |
| Ornithosuchus woodwardi | "Bird crocodile" | 230 Ma | Late Triassic | Carnivore | 1.0 m | 4.0 m | 150 kg | Newton (1894) | Scotland (Lossiemouth) | Bugs Bunny: "He’s a croc that can walk on two legs, doc! He was tryin' to be a dinosaur before it was even cool!" |
| Protosuchus haughtoni | "First crocodile" | 195 Ma | Early Jurassic | Carnivore | 0.3 m | 1.0 m | 20 kg | Broom (1904) | South Africa (Elliot Fm) | Papa Smurf: "A brave little ancestor. He lived on land and was very fast, unlike the big sleepy crocodiles we see today." |
| Sarcosuchus imperator | "Flesh crocodile emperor" | 112 Ma | Early Cretaceous | Carnivore | 1.5 m | 11.5 m | 8,000 kg | de Broin (1966) | Niger (Elrhaz Fm) | Tigger: "Super-Croc! His nose is like a big bulbous bowl! He’s the biggest bouncer in the African swamp! Hoo-hoo-hoo!" |
| Bulbasaurus phylloxyron | "Bulb lizard" | 255 Ma | Late Permian | Herbivore | 0.1 m | 0.3 m | 2 kg | Christian (2017) | South Africa (Vubran Fm) | Dawn: "Named because of its beak, but it sounds like a Pokémon! He’s a cute little plant-eater from the time before dinosaurs." |
| Dimetrodon grandis | "Two measures of teeth" | 280 Ma | Early Permian | Carnivore | 1.5 m | 4.0 m | 250 kg | Cope (1878) | USA (Red Beds) | Garfield: "He’s got a giant sail on his back for sunbathing. My kind of guy, though he lived way before lasagna was invented." |
| Lystrosaurus curvatus | "Shovel lizard" | 250 Ma | Early Triassic | Herbivore | 0.5 m | 1.0 m | 50 kg | Owen (1859) | Worldwide | Bluey: "He’s a disaster survivor! He made it through the Great Dying and lived everywhere, for real life!" |
| Alphadon halleyi | "First tooth" | 70 Ma | Late Cretaceous | Omnivore | 0.1 m | 0.3 m | 0.5 kg | Simpson (1927) | USA (Hell Creek Fm) | Alvin: "He looks like an opossum! While the big dinos were stomping around, he was scurrying through the trees!" |
| Argyrolagus palmeri | "Silver hare" | 5 Ma | Pliocene | Herbivore | 0.2 m | 0.4 m | 1 kg | Ameghino (1904) | Argentina (Monte Hermoso) | Winnie the Pooh: "A kangaroo-rat-like friend. He hops around on his back legs. He looks very bouncy and very soft." |
| Gurbanodelta kara | "Gurbantünggüt Delta" | 160 Ma | Late Jurassic | Insectivore | 0.05 m | 0.1 m | 0.02 kg | Meng (2011) | China (Shishugou Fm) | Brainy Smurf: "A very tiny mammal from the Jurassic. Statistically, being small was the best way to avoid being a dinosaur's snack!" |
| Turgidodon parapraesagus | "Swollen tooth" | 75 Ma | Late Cretaceous | Omnivore | 0.1 m | 0.2 m | 0.4 kg | Cifelli (1990) | USA (Judith River Fm) | Geronimo Stilton: "A relative of the marsupials! He’s a small, 'fabumouse' hero of the Cretaceous undergrowth!" |
Genus List for Holtz (2026): Mammals of the Ice Age & Cenozoic
| Genus | Name Meaning | Age | Time | Diet | Height | Length | Weight | Author | Region / Formation | Cartoon All-Stars's Comments/Facts |
| Aenocyon dirus | "Terrible wolf" | 0.01 Ma | Pleistocene | Carnivore | 1.0 m | 1.7 m | 70 kg | Leidy (1858) | North America | Optimus Prime: "The Dire Wolf. A formidable pack hunter whose strength was etched in the asphalt of the La Brea Tar Pits." |
| Cronopio dentiacutus | "Sharp-toothed Cronopio" | 93 Ma | Late Cretaceous | Insectivore | 0.05 m | 0.15 m | 0.1 kg | Rougier (2011) | Argentina (Candeleros) | Bugs Bunny: "Check out those saber-teeth! He looks just like Scrat from the movies, doc! A real 'nutty' ancestor!" |
| Embolotherium grangeri | "Battering ram beast" | 35 Ma | Eocene | Herbivore | 2.5 m | 4.5 m | 2,000 kg | Osborn (1929) | Mongolia (Ulan Gochu) | Daffy Duck: "He’s got a giant bony ramp on his nose! Talk about a spectacular facial feature! It's over-the-top! It's despicable!" |
| Glyptodon munizi | "Carved tooth" | 0.01 Ma | Pleistocene | Herbivore | 1.5 m | 3.3 m | 2,000 kg | Owen (1839) | South America | Garfield: "A giant armadillo shaped like a Volkswagen Beetle. He’s got built-in armor and a tail like a mace. I can respect that." |
| Macrauchenia patachonica | "Long llama" | 0.01 Ma | Pleistocene | Herbivore | 2.2 m | 3.0 m | 1,000 kg | Owen (1838) | South America | Bluey: "He’s got a trunk like a tapir and legs like a camel! He’s a mixed-up masterpiece of the Ice Age, for real life!" |
| Mammuthus primigenius | "First-born mammoth" | 0.004 Ma | Pleistocene | Herbivore | 3.4 m | 6.0 m | 6,000 kg | Blumenbach (1799) | Holarctic | Winnie the Pooh: "A very woolly friend. He wore a thick brown coat to stay warm in the snow. He looks like a very big, soft hug." |
| Megacerops coloradensis | "Large horned face" | 34 Ma | Eocene | Herbivore | 2.5 m | 5.0 m | 3,300 kg | Leidy (1870) | USA (Chadron Fm) | Tigger: "Look at that 'Y' shaped horn! He’s the bounce-iest, rhino-est fellow in the badlands! Hoo-hoo-hoo!" |
| Megalonyx wheatleyi | "Great claw" | 0.01 Ma | Pleistocene | Herbivore | 3.0 m | 3.0 m | 1,000 kg | Jefferson (1797) | North America | Michelangelo: "A giant ground sloth! This dude has radical claws for pulling down branches. Totally chill, totally huge!" |
| Moeritherium trigodon | "Beast of Lake Moeris" | 35 Ma | Eocene | Herbivore | 0.7 m | 2.0 m | 200 kg | Andrews (1901) | Egypt (Qasr el-Sagha) | Dawn: "A very early relative of elephants that lived in the water like a hippo. He didn't have a trunk yet, just a wiggly lip!" |
| Paraceratherium transouralicum | "Near horned beast" | 23 Ma | Oligocene | Herbivore | 4.8 m | 7.4 m | 15,000 kg | Forster-Cooper (1913) | Eurasia | Brainy Smurf: "The largest land mammal ever! Statistically, he was as tall as a giraffe but as heavy as two T-Rexes combined!" |
| Smilodon gracilis | "Knife tooth" | 2.5 Ma | Pleistocene | Carnivore | 0.6 m | 1.2 m | 100 kg | Cope (1880) | North America | Thea Stilton: "The 'slender' saber-tooth! He was smaller and faster than his famous cousins, making him a very 'fabumouse' predator!" |
Prehistoric Reptiles (Based on At Home with Olaf by Hyrum Osmond)
Here is the comprehensive chart table based on the non-dinosaurian reptiles and marine reptiles traditionally included in the supplementary genus lists and appendixes of Thomas R. Holtz Jr.’s Dinosaurs: The Most Complete, Up-to-Date Encyclopedia for Dinosaur Lovers of All Ages (2007).
I have mapped out the taxonomy you provided, populated the exact paleobiology metrics (age, time, estimated sizes, locations, and original authors), and tied in the character context for Teodora from Legend Quest (Las Leyendas), where she acts as the team's tech-savvy Master of Myth.
Non-Dinosaurian Reptile & Marine Genus Chart
| Family / Group | Name | Name Meaning | Age / Time | Dimensions (Length / Weight) | Where Found | Author & Year | Teodora's Comments (Legend Quest) |
| Protorothyrididae | Hylonomus lyelli (latidens) | "Forest dweller" | Late Carboniferous
(~312 Ma) |
Length: 20 cm (8 in)
Weight: < 200 g |
Nova Scotia, Canada | Dawson, 1860 | "An ancient Canadian tiny lizard. Not a true monster, but basically the great-great-grandfather of all of them!" |
| Mesosauridae | Mesosaurus tenuidens | "Middle lizard" | Early Permian
(~290–270 Ma) |
Length: 1 m (3.3 ft)
Weight: 2–5 kg |
South Africa, Uruguay, Brazil | Gervais, 1865 | "The first reptile to say 'nope' to land and swim back into the ocean. Handy little ghost to have around." |
| Plesiosauridae | Plesiosaurus dolichodeirus | "Near lizard" | Early Jurassic
(~199–175 Ma) |
Length: 3.5 m (11.5 ft)
Weight: 450 kg |
England | Conybeare, 1824 | "The classic 'Loch Ness Monster' build! Those four giant flippers mean it practically flew underwater." |
| Cryptocleididae | Cryptoclidus richardsoni | "Hidden clavicle" | Middle Jurassic
(~166–164 Ma) |
Length: 3 m (13 ft)
Weight: 300 kg |
England, France | Seeley, 1892 | "A long-necked hunter with interlocking teeth that acted like a cage. No fish escaped this specter." |
| Elasmosauridae | Elasmosaurus platyurus | "Thin-plate lizard" | Late Cretaceous
(~80 Ma) |
Length: 10.3 m (34 ft)
Weight: 2 metric tons |
Kansas, USA | Cope, 1868 | "Okay, this neck is ridiculous. Literally over 70 neck vertebrae. Talk about prime internet meme material." |
| Pliosauridae | Attenborosaurus conybeari | "Attenborough's lizard" | Early Jurassic
(~190 Ma) |
Length: 5 m (16.4 ft)
Weight: 1 metric ton |
Dorset, England | Bakker, 1993 | "Named after David Attenborough! A long neck but with a massive pliosaur attitude. Love it." |
| Pliosauridae | Kronosaurus queenslandicus | "Kornos lizard" (Titan) | Early Cretaceous
(~120–100 Ma) |
Length: 9–10.5 m (30–34 ft)
Weight: 7–11 metric tons |
Australia | Longman, 1924 | "An absolute apex leviathan from Down Under. This monster ate other marine reptiles for breakfast." |
| Pliosauridae | Liopleurodon ferox | "Smooth-sided teeth" | Middle-Late Jurassic
(~166–155 Ma) |
Length: 5–7 m (16–23 ft)
Weight: 1.5–3 metric tons |
England, France | Sauvage, 1873 | "The internet totally exaggerated its size, but it was still a terrifying phantom predator of the deep." |
| Nothosauridae | Nothosaurus giganteus | "False lizard" | Triassic
(~240–210 Ma) |
Length: 4–5 m (13–16 ft)
Weight: 300–400 kg |
Germany | Münster, 1834 | "Like a prehistoric seal with a scary reptile makeover. It spent time on both beaches and waves." |
| Ichthyosauridae | Ichthyosaurus communis (conybeari) | "Fish lizard" | Early Jurassic
(~200–188 Ma) |
Length: 2–3.3 m (6.6–11 ft)
Weight: 90–150 kg |
England, Germany | De la Beche & Conybeare, 1821 | "It looks exactly like a dolphin, but it's 100% reptile. Natural selection loves recycling good designs." |
| Mosasauridae | Mosasaurus beaugei | "Meuse River lizard" | Late Cretaceous
(~66 Ma) |
Length: 8–40 m (26–130 ft)
Weight: 2–40 metric tons |
Morocco | Arambourg, 1952 | "A giant sea monitor lizard with a shark-like tail. Literal nightmare fuel if it wasn't already extinct!" |
💡 Key Paleontological Nuances:
- The "Sea Monster" Clarification: As Dr. Holtz emphasizes in his encyclopedia, none of these creatures are technically dinosaurs. Dinosaurs are strictly terrestrial reptiles belonging to a specific clade defined by their hip structures and an upright posture.
- The Marine Invaders: Plesiosaurs, Pliosaurs, Nothosaurs, Ichthyosaurs, and Mosasaurs represent completely different evolutionary lines of reptiles that independently invaded the oceans during the Mesozoic Era.
Here is the breakdown of the Pterosauria order structured around the classic Holtz (2007) format.
Like the marine reptiles, Dr. Thomas Holtz notes that pterosaurs are not dinosaurs. They are closely related "sister cousins" belonging to the broader group Ornithodira, meaning they share a common ancestor but split down their own incredible evolutionary line.
Because pterosaurs spend most of their time in the air or walking quadrupedally (on all fours), their size is best understood by wingspan rather than just standard body height or length.
Order Pterosauria Genus Chart
| Suborder / Family | Genus & Species | Name Meaning | Age / Time | Dimensions (Wingspan / Height / Weight) | Where Found | Author & Year | Teodora's Comments (Legend Quest) |
| RHAMPHORHYNCHOIDEA
(Long-Tailed Pterosaurs) |
|||||||
| Dimorphodontidae | Dimorphodon macronyx | "Two-form tooth" | Early Jurassic
(~195–190 Ma) |
Wingspan: 1.4 m (4.6 ft)
Height: 30 cm (1 ft) Weight: 2–4 kg |
England | Owen, 1859 | "It has a puffin head and a lizard tail. Super clunky flyer, probably spent more time scrambling up trees than actually soaring." |
| Eudimorphodontidae | Eudimorphodon ranzii | "True dimorphic tooth" | Late Triassic
(~210 Ma) |
Wingspan: 1 m (3.3 ft)
Height: 15 cm (0.5 ft) Weight: 100g |
Italy | Zambelli, 1973 | "One of the absolute oldest flyers we know of! Its mouth was packed with over 100 tiny teeth. Ultimate bug-zapper." |
| Rhamphorhynchidae | Anurognathus ammoni | "Without tail jaw" | Late Jurassic
(~150 Ma) |
Wingspan: 50 cm (20 in)
Height: 5 cm (2 in) Weight: 40 g |
Germany | Döderlein, 1923 | "Okay, this one completely cheated the 'long-tail' rule. It's just a tiny, fluffy ball of fury with giant frog-eyes for night hunting." |
| Rhamphorhynchidae | Rhamphorhynchus etchesi | "Beak snout" | Late Jurassic
(~150 Ma) |
Wingspan: 1.2–1.8 m (4–6 ft)
Height: 25 cm (10 in) Weight: 1–2 kg |
England | O'Sullivan & Martill, 2015 | "The classic needle-toothed fish grabber, but the English version! That diamond-shaped tail vane acted like a literal rudder." |
| Rhamphorhynchidae | Scaphognathus crassirostris | "Tub snout" | Late Jurassic
(~150 Ma) |
Wingspan: 0.9 m (3 ft)
Height: 20 cm (8 in) Weight: 500 g |
Germany | Wagner, 1861 | "Nicknamed the 'mouth-organ pterosaur' because of its blunt, square jaw. Definitely didn't skip jaw day." |
| Rhamphorhynchidae | Sordes pilosus | "Hairy filth" | Late Jurassic
(~155 Ma) |
Wingspan: 0.6 m (2 ft)
Height: 15 cm (6 in) Weight: 200 g |
Kazakhstan | Sharov, 1971 | "Rude name aside, the fossils show it was covered in dense, fuzzy pycnofibers. It was basically a warm-blooded reptile bat." |
| PTERODACTYLOIDEA
(Short-Tailed Pterosaurs) |
|||||||
| Dsungaripteridae | Dsungaripterus weii | "Dzungaria wing" | Early Cretaceous
(~120 Ma) |
Wingspan: 3–3.5 m (10–11.5 ft)
Height: 1 m (3.3 ft) Weight: 15–20 kg |
China | Young, 1964 | "Look at that upturned beak! It used the tip like tweezers to pry shellfish off rocks, then crushed them with its back teeth." |
| Tapejaridae | Caiuajara dobruskii | "Caiuá Group lord" | Early Cretaceous
(~115 Ma) |
Wingspan: 2.3 m (7.5 ft)
Height: 1.2 m (4 ft) Weight: 3.5 kg |
Brazil | Manzig et al., 2014 | "Found in a huge 'pterosaur graveyard' bonebed. They grew giant sail-like head crests as they aged. Total show-offs." |
| Tapejaridae | Tapejara wellnhoferi | "The old being" | Early Cretaceous
(~110 Ma) |
Wingspan: 1.3 m (4.3 ft)
Height: 80 cm (2.6 ft) Weight: 1.5–2 kg |
Brazil | Kellner, 1989 | "Another giant head crest champion. It looks top-heavy, but the bone was paper-thin. Probably ate ancient fruit!" |
| Pterodaustriidae | Pterodaustro guinazui | "South wing" | Early Cretaceous
(~105 Ma) |
Wingspan: 2.5 m (8.2 ft)
Height: 60 cm (2 ft) Weight: 2–3 kg |
Argentina | Bonaparte, 1969 | "Imagine a reptile flamingo. It had thousands of bristle-teeth in its lower jaw to filter-feed briny shrimp out of lakes." |
| Pterodactylidae | Cearadactylus atrox | "Ceará finger" | Early Cretaceous
(~112 Ma) |
Wingspan: 4–5.5 m (13–18 ft)
Height: 1.2 m (4 ft) Weight: 15 kg |
Brazil | Leonardi & Borgomanero, 1985 | "A serious, large-scale predator with interlocking kris-knife teeth at the front of its snout. Absolute nightmare fuel." |
| Pterodactylidae | Pterodactylus antiquus | "Wing finger" | Late Jurassic
(~150 Ma) |
Wingspan: 1.0 m (3.3 ft)
Height: 20 cm (8 in) Weight: 1–2 kg |
Germany | Cuvier, 1809 | "The OG. The first pterosaur ever discovered and named. Small, sleek, and started the whole paleontology craze." |
| Ornithocheiridae | Pteranodon sternbergi (Geosternbergia) | "Toothless wing" | Late Cretaceous
(~85–80 Ma) |
Wingspan: 6 m (20 ft)
Height: 1.8 m (6 ft) Weight: 25–35 kg |
Kansas, USA | Miller, 1972 | "The males had a giant, upright beacon crest on their heads. It was built like a record-breaking glider over open oceans." |
| Ornithocheiridae | Quetzalcoatlus lawsoni | "Feathered serpent god" | Late Cretaceous
(~68–66 Ma) |
Wingspan: 4.5–25 m (15–83.2 ft)
Height: 12.1 m (39.4 ft) Weight: 40–500,000 kg |
Texas, USA | Andres & Langston, 2021 | "The smaller cousin of Q. northropi, but still as tall as a horse! Stalked around on land eating baby dinosaurs." |
🦖 Evolution Notes for your Database:
- The Suborder Split: Notice how the early Rhamphorhynchoids are small, possess long stiff tails for balance, and maintain a throat structure optimized for catching insects or fish. The later Pterodactyloids completely lost the tail, grew elongated neck vertebrae, and developed wild skull crests used for species recognition or mating displays.
- Quetzalcoatlus lawsoni update: While Q. northropi is the famous giraffe-sized giant, Q. lawsoni was officially given its specific species description recently based on hundreds of co-located bones found in Texas, filling a massive gap in how these giants lived in groups!
Here is the complete database chart for the Order Saurischia ("lizard-hipped" dinosaurs), separated into its two massive branches: Suborder Theropoda (predatory bipedal dinosaurs and early birds) and Suborder Sauropodomorpha (the long-necked giants).
To ensure clean scannability across this massive list, I have broken the data down into structured sections by infraorder, maintaining the classic Holtz (2007) layout alongside the Legend Quest character context for Teodora.
🦖 SUBORDER THEROPODA
Infraorder Ceratosauria & Carnosauria (Part 1)
| Family | Dinosaur | Name Meaning | Age / Time | Dimensions (Height / Length / Weight) | Where Found | Author & Year | Teodora's Comments (Legend Quest) |
| Podokesauridae | Coelophysis bauri | "Hollow form" | Late Triassic
(~203 Ma) |
H: 1 m (3.3 ft)
L: 3 m (10 ft) W: 15–20 kg |
New Mexico, USA | Cope, 1889 | "Lightweight, lightning fast, and built like an arrow. Perfect scout material for an ancient army." |
| Podokesauridae | Procompsognathus triassicus | "Before elegant jaw" | Late Triassic
(~210 Ma) |
H: 25 cm (10 in)
L: 1 m (3.3 ft) W: 1 kg |
Germany | Fraas, 1913 | "Not actually a true Compsognathid, but a Triassic proto-predator. It looks cute until twenty of them surround you." |
| Podokesauridae | Saltopus elginensis | "Leaping foot" | Late Triassic
(~228 Ma) |
H: 15 cm (6 in)
L: 60 cm (2 ft) W: 1 kg |
Scotland | Woodward, 1910 | "This tiny phantom is barely the size of a stray cat. Hard to believe it's one of the earliest theropod ancestors." |
| Dilophosauridae | Cryolophosaurus ellioti | "Cold crest lizard" | Early Jurassic
(~190 Ma) |
H: 2.1 m (7 ft)
L: 6.5 m (21 ft) W: 460 kg |
Antarctica | Hammer & Hickerson, 1994 | "Nicknamed 'Elvisaurus' because its head crest looks like a 1950s pompadour pomf. Rocking out in icy Antarctica!" |
| Dilophosauridae | Dilophosaurus wetherilli | "Two-crested lizard" | Early Jurassic
(~193 Ma) |
H: 2.4 m (8 ft)
L: 7 m (23 ft) W: 400 kg |
Arizona, USA | Welles, 1954 | "No, it didn't spit acid or have a neck frill like in the movies, but those double head crests are still incredibly stylish." |
| Ceratosauridae | Ceratosaurus nasicornis | "Horned lizard" | Late Jurassic
(~150 Ma) |
H: 2.5 m (8.2 ft)
L: 6–7 m (20–23 ft) W: 500–1000 kg |
Colorado, USA | Marsh, 1884 | "A big nasal horn and massive blade-like teeth. Looks like a mythical dragon that traded its wings for powerful running legs." |
| Abelisauridae | Carnotaurus sastrei | "Meat-eating bull" | Late Cretaceous
(~70 Ma) |
H: 3 m (10 ft)
L: 7.5 m (25 ft) W: 1.5 metric tons |
Argentina | Bonaparte, 1985 | "A literal speed-demon with literal bull horns! Don't laugh at its tiny, useless baby arms—it runs as fast as a car." |
| Abelisauridae | Majungasaurus crenatissimus | "Mahajanga lizard" | Late Cretaceous
(~66 Ma) |
H: 2 m (6.6 ft)
L: 7 m (23 ft) W: 1 metric ton |
Madagascar | Lavocat, 1955 | "A stout, short-legged apex predator with a single horn on its forehead. Fossil teeth prove it was a confirmed cannibal!" |
| Noasauridae | Elaphrosaurus bambergi | "Lightweight lizard" | Late Jurassic
(~150 Ma) |
H: 1.6 m (5.2 ft)
L: 6 m (20 ft) W: 210 kg |
Tanzania | Janensch, 1920 | "Super long neck and a slender frame. It lost its teeth as it grew up, turning from a baby meat-eater into a veggie adult!" |
| Megalosauridae | Eustreptospondylus oxoniensis | "True streptospondylus" | Middle Jurassic
(~162 Ma) |
H: 1.5 m (5 ft)
L: 4.6 m (15 ft) W: 200 kg |
England | Walker, 1964 | "A shoreline beachcomber from ancient European islands. Probably excellent at swimming between sandbars." |
| Megalosauridae | Megalosaurus bucklandii | "Great lizard" | Middle Jurassic
(~166 Ma) |
H: 2.5 m (8.2 ft)
L: 6 m (20 ft) W: 700 kg |
England | Buckland, 1824 | "The absolute grandfather of paleontology. The very first non-avian dinosaur ever officially named in history." |
| Megalosauridae | Proceratosaurus bradleyi | "Before Ceratosaurus" | Middle Jurassic
(~165 Ma) |
H: 1 m (3.3 ft)
L: 3 m (10 ft) W: 40 kg |
England | Woodward, 1910 | "Don't let the name fool you, it’s not related to Ceratosaurus. It’s actually one of the earliest known ancestors of T. rex!" |
| Megalosauridae | Yutyrannus huali | "Feathered tyrant" | Early Cretaceous
(~125 Ma) |
H: 3 m (10 ft)
L: 9 m (30 ft) W: 1.4 metric tons |
China | Xu et al., 2012 | "The largest directly proven feathered dinosaur. A massive, shaggy, nine-meter blizzard-tyrant. Majestic but terrifying." |
| Spinosauridae | Baryonyx walkeri | "Heavy claw" | Early Cretaceous
(~125 Ma) |
H: 2.5 m (8.2 ft)
L: 9.5 m (31 ft) W: 1.2 metric tons |
England | Charig & Milner, 1986 | "A crocodile-headed fisher with a foot-long thumb claw. Perfect asset for locking down swamps and river banks." |
| Spinosauridae | Spinosaurus aegyptiacus | "Spine lizard" | Late Cretaceous
(~95 Ma) |
H: 4 m (13 ft)
L: 14 m (46 ft) W: 7.4 metric tons |
Egypt, Morocco | Stromer, 1915 | "A giant river dragon with a massive sail and a paddle-like tail. Bigger than a T. rex but preferred hunting mega-fish." |
| Spinosauridae | Suchomimus tenerensis | "Crocodile mimic" | Early Cretaceous
(~115 Ma) |
H: 3 m (10 ft)
L: 11 m (36 ft) W: 3 metric tons |
Niger | Sereno et al., 1998 | "Basically a Baryonyx on growth hormones. It ran around ancient African deltas snapping up prehistoric coelacanths." |
Infraorder Carnosauria (Part 2: Tyrannosaurs, Allosaurs & Carcharodontosaurs)
| Family | Dinosaur | Name Meaning | Age / Time | Dimensions (Height / Length / Weight) | Where Found | Author & Year | Teodora's Comments (Legend Quest) |
| Tyrannosauridae | Albertosaurus sarcophagus | "Alberta lizard" | Late Cretaceous
(~70 Ma) |
H: 2.8 m (9 ft)
L: 9 m (30 ft) W: 2 metric tons |
Alberta, Canada | Osborn, 1905 | "A sleeker, faster, more athletic cousin of T. rex. Bonebeds suggest they hunted in coordinated packs. Yikes." |
| Tyrannosauridae | Alioramus altai | "Different branch" | Late Cretaceous
(~70 Ma) |
H: 2 m (6.6 ft)
L: 6 m (20 ft) W: 800 kg |
Mongolia | Kurzanov, 1976 | "A long, narrow snout lined with eight bony bumps. Built for speed and precise snapping rather than bone-crushing power." |
| Tyrannosauridae | Daspletosaurus horneri | "Frightful lizard" | Late Cretaceous
(~75 Ma) |
H: 3 m (10 ft)
L: 9 m (30 ft) W: 2.5 metric tons |
Montana, USA | Carr et al., 2017 | "Heavy-set, rugged, and lived right before T. rex took over the throne. The ultimate powerhouse bully of the Mesozoic woods." |
| Tyrannosauridae | Qianzhousaurus sinensis | "Qianzhou lizard" | Late Cretaceous
(~66 Ma) |
H: 2.2 m (7.2 ft)
L: 9 m (30 ft) W: 800 kg |
China | Lü et al., 2014 | "Nicknamed 'Pinocchio rex' due to its incredibly long, slender snout. A highly specialized, elegant elite stalker." |
| Tyrannosauridae | Tarbosaurus bataar | "Alarming lizard" | Late Cretaceous
(~70 Ma) |
H: 3.5 m (11.5 ft)
L: 10–12 m (33–40 ft) W: 4–5 metric tons |
Mongolia | Maleev, 1955 | "The Asian counterpart to T. rex. Its jaw was more rigid, locking down tightly on big sauropods like Nemegtosaurus." |
| Tyrannosauridae | Tyrannosaurus rex | "Tyrant lizard king" | Late Cretaceous
(~68–66 Ma) |
H: 3.7–5.89 m (12–19.3 ft)
L: 15 m (49.2 ft) W: 8–9 metric tons |
Western NA | Osborn, 1905 | "The undisputed mythic king. Stereoscopic vision, bone-crushing bite, and an absolute unit. Don't cross its path." |
| Allosauridae | Allosaurus europaeus | "Different lizard" | Late Jurassic
(~150 Ma) |
H: 4.2 m (13.2 ft)
L: 12.1 m (39.4 ft) W: 1 metric ton |
Portugal; New Mexico, USA | Mateus et al., 2006 | "The European version of the classic Morrison predator, rocking subtle nasal crests. The absolute outlaw of the Jurassic." |
| Allosauridae | Yangchuanosaurus zigongensis | "Yangchuan lizard" | Middle Jurassic
(~165 Ma) |
H: 2.8 m (9 ft)
L: 8 m (26 ft) W: 1.3 metric tons |
China | Gao, 1993 | "A rugged apex predator from China with small hornlets over its snout. It filled the Allosaur role beautifully out east." |
| Carcharodontosauridae | Acrocanthosaurus atokensis | "High-spined lizard" | Early Cretaceous
(~110 Ma) |
H: 3.5 m (11.5 ft)
L: 11.5 m (38 ft) W: 5.7 metric tons |
Oklahoma, USA | Stovall & Langston, 1950 | "A massive ridge of muscle ran down its spine. It left legendary fossil footprints in Texas while tracking sauropods!" |
| Carcharodontosauridae | Carcharodontosaurus iguidensis | "Shark-toothed lizard" | Late Cretaceous
(~95 Ma) |
H: 3.8 m (12.5 ft)
L: 12 m (40 ft) W: 4–6 metric tons |
Niger | Brusatte & Sereno, 2007 | "Its jaw was packed with self-sharpening, serrated teeth designed to cause massive blood loss. Terrifyingly efficient." |
| Carcharodontosauridae | Giganotosaurus carolinii | "Giant southern lizard" | Late Cretaceous
(~97 Ma) |
H: 4 m (13 ft)
L: 12.5 m (41 ft) W: 7–8 metric tons |
Argentina | Coria & Salgado, 1995 | "South America's answer to T. rex, but built for slicing flesh rather than crushing bones. A gargantuan titan-slayer." |
Infraorder Coelurosauria & Deinonychosauria
| Family | Dinosaur | Name Meaning | Age / Time | Dimensions (Height / Length / Weight) | Where Found | Author & Year | Teodora's Comments (Legend Quest) |
| Coeluridae | Coelurus fragilis | "Hollow tail" | Late Jurassic
(~150 Ma) |
H: 70 cm (2.3 ft)
L: 2.4 m (8 ft) W: 15–20 kg |
Wyoming, USA | Marsh, 1879 | "A dainty, delicate little hunter hiding in the shadows of giants like Allosaurus. Keep an eye on it or it'll swipe your lunch." |
| Coeluridae | Moros intrepidus | "Impending doom" | Late Cretaceous
(~96 Ma) |
H: 1 m (3.3 ft)
L: 2.5 m (8 ft) W: 78 kg |
Utah, USA | Zanno et al., 2019 | "An incredible discovery! The tiny, early North American tyrant that shows how rex's family started small before getting big." |
| Coeluridae | Nanotyrannus lethaeus | "Dwarf tyrant" | Late Cretaceous
(~66 Ma) |
H: 2 m (6.6 ft)
L: 5 m (16 ft) W: 400–600 kg |
Montana, USA | Bakker et al., 1988 | "The ultimate paleontology flame war. Most experts agree it’s just a teenage T. rex going through a lanky punk phase!" |
| Compsognathidae | Compsognathus longipes | "Elegant jaw" | Late Jurassic
(~150 Ma) |
H: 30 cm (1 ft)
L: 1.2 m (4 ft) W: 2–3 kg |
Germany, France | Wagner, 1859 | "Classic, turkey-sized lizard hunter. Famously found with its last lizard meal still fossilized inside its belly." |
| Compsognathidae | Sinosauropteryx lingyuanensis | "Chinese lizard wing" | Early Cretaceous
(~122 Ma) |
H: 25 cm (10 in)
L: 1 m (3.3 ft) W: 1 kg |
China | Ji & Ji, 1996 | "The first dino proven to have proto-feathers! Science even extracted its pigment—it had ginger-orange stripes and a ringed tail!" |
| Ornithomimidae | Archaeornithomimus asiaticus | "Ancient bird mimic" | Late Cretaceous
(~90 Ma) |
H: 1.2 m (4 ft)
L: 3.3 m (11 ft) W: 50 kg |
China | Russell, 1972 | "An early 'ostrich dinosaur' model. No teeth, big eyes, and built entirely to flee from larger predators at top speed." |
| Ornithomimidae | Dromiceiomimus samueli | "Emu mimic" | Late Cretaceous
(~73 Ma) |
H: 1.5 m (5 ft)
L: 3.5 m (11.5 ft) W: 100 kg |
Alberta, Canada | Russell, 1972 | "Massive eye sockets mean it had incredible vision. Probably did its high-speed sprinting during the twilight hours." |
| Ornithomimidae | Gallimimus bullatus | "Rooster mimic" | Late Cretaceous
(~70 Ma) |
H: 2 m (6.6 ft)
L: 6 m (20 ft) W: 440 kg |
Mongolia | Barsbold et al., 1972 | "The largest of the standard ostrich-mimics. Flock behavior means if one starts running, you better follow them!" |
| Ornithomimidae | Ornithomimus velox | "Bird mimic" | Late Cretaceous
(~66 Ma) |
H: 1.4 m (4.6 ft)
L: 3.8 m (12.5 ft) W: 170 kg |
Colorado, USA | Marsh, 1890 | "Fossils show adults had fully developed feathered wings for display. It's basically a highly athletic Mesozoic roadrunner." |
| Ornithomimidae | Struthiomimus altus | "Ostrich mimic" | Late Cretaceous
(~75 Ma) |
H: 1.4 m (4.6 ft)
L: 4.3 m (14 ft) W: 150 kg |
Alberta, Canada | Lambe, 1902 | "A classic speedster. Its powerful long fingers were great for clamping down on branches to pick ancient fruits." |
| Deinocheiridae | Deinocheirus mirificus | "Unusual horrible hand" | Late Cretaceous
(~70 Ma) |
H: 6 m (20.5 ft)
L: 14 m (46.5 ft) W: 6.4 metric tons |
Mongolia | Osmólska & Roniewicz, 1970 | "For decades, we only had its massive 8-foot arms. Turns out it was a giant, hump-backed, duck-billed, omnivorous monster!" |
| Oviraptoridae | Oviraptor philoceratops | "Egg thief" | Late Cretaceous
(~75 Ma) |
H: 80 cm (2.6 ft)
L: 1.6 m (5.2 ft) W: 35 kg |
Mongolia | Osborn, 1924 | "Framed for egg theft! New fossils showed it wasn't stealing eggs—it died shielding its own nest from a sandstorm. True parent hero." |
| Saurornithoididae | Saurornithoides mongoliensis | "Bird-like lizard" | Late Cretaceous
(~75 Ma) |
H: 1 m (3.3 ft)
L: 3 m (10 ft) W: 40 kg |
Mongolia | Osborn, 1924 | "A specialized troodontid built for night operations. Huge eyes, large brain cavity, and a cunning pack-hunting style." |
| Saurornithoididae | Troodon formosus | "Wounding tooth" | Late Cretaceous
(~77 Ma) |
H: 1 m (3.3 ft)
L: 2.4 m (8 ft) W: 50 kg |
Montana, USA | Leidy, 1856 | "The classic 'brainiac' dino. It had the highest brain-to-body mass ratio of its time. High strategic utility for database lore." |
| Therizinosauridae | Therizinosaurus cheloniformis | "Scythe lizard" | Late Cretaceous
(~70 Ma) |
H: 5 m (16.4 ft)
L: 10 m (33 ft) W: 5 metric tons |
Mongolia | Maleev, 1954 | "It had three-foot long, sword-like hand claws, a pot belly, and a beak. A bizarre giant herbivore that could shred predators like paper." |
| Dromaeosauridae | Atrociraptor marshalli | "Savage robber" | Late Cretaceous
(~68 Ma) |
H: 70 cm (2.3 ft)
L: 2 m (6.6 ft) W: 15 kg |
Alberta, Canada | Currie & Varricchio, 2004 | "A short, deep snout gives it a brutal bite force compared to other raptors. Think of a tactical prehistoric pit bull." |
| Dromaeosauridae | Bambiraptor feinbergi | "Bambi robber" | Late Cretaceous
(~75 Ma) |
H: 30 cm (1 ft)
L: 90 cm (3 ft) W: 2 kg |
Montana, USA | Burnham et al., 2000 | "Named after the Disney character because it's so tiny and perfectly intact. Fully feathered and possessed opposable finger grip!" |
| Dromaeosauridae | Deinonychus antirrhopus | "Counterbalancing terrible claw" | Early Cretaceous
(~115 Ma) |
H: 1 m (3.3 ft)
L: 3.4 m (11 ft) W: 73 kg |
Montana, USA | Ostrom, 1969 | "The dinosaur that sparked the 'Dinosaur Renaissance.' Its switchblade foot claw proved these monsters were dynamic and warm-blooded." |
| Dromaeosauridae | Dromaeosaurus albertensis | "Running lizard" | Late Cretaceous
(~75 Ma) |
H: 60 cm (2 ft)
L: 2 m (6.6 ft) W: 15 kg |
Alberta, Canada | Matthew & Brown, 1922 | "The namesake of the raptor family. It leaned less on kicking claws and more on a heavily built skull to bite down hard." |
| Dromaeosauridae | Pyroraptor olympius | "Olympic fire robber" | Late Cretaceous
(~70 Ma) |
H: 50 cm (1.6 ft)
L: 1.6 m (5.2 ft) W: 14 kg |
France | Allain & Taquet, 2000 | "Discovered after a forest fire in France! A fierce, elegant little island hopper with beautiful plumage." |
| Dromaeosauridae | Saurornitholestes sullivani | "Lizard-bird thief" | Late Cretaceous
(~75 Ma) |
H: 60 cm (2 ft)
L: 1.8 m (6 ft) W: 10 kg |
New Mexico, USA | Sullivan, 2006 | "An elite light skirmisher. Superb sense of smell paired with long legs made it a nightmare tracker across ancient swamps." |
| Dromaeosauridae | Utahraptor ostrommaysorum | "Utah robber" | Early Cretaceous
(~125 Ma) |
H: 2 m (6.6 ft)
L: 6 m (20 ft) W: 500 kg |
Utah, USA | Kirkland et al., 1993 | "An absolute tactical tank of a raptor. It weighed half a ton and wielded 9-inch sickle claws. The ultimate apex combat dino." |
| Dromaeosauridae | Velociraptor osmolskae | "Swift robber" | Late Cretaceous
(~75 Ma) |
H: 50 cm (1.6 ft)
L: 2 m (6.6 ft) W: 15 kg |
Mongolia | Godefroit et al., 2008 | "Turkey-sized but incredibly fierce. The famous 'Fighting Dinosaurs' fossil caught one locked in a death match with a Protoceratops!" |
| Archaeopterygidae | Archaeopteryx albersdoerferi | "Ancient wing" | Late Jurassic
(~150 Ma) |
H: 30 cm (1 ft)
L: 50 cm (1.6 ft) W: 500 g |
Germany | Kundrát et al., 2018 | "The missing link spec! This particular species shows fused skull bones and stronger wings—closer to modern birds than older types." |
🦕 SUBORDER SAUROPODOMORPHA
Infraorder Prosauropoda (Early Long-Necks)
Community Note: Included in your chart list is Smurfette smurfensis, an inventive pop-culture fan-dino homage to Peyo's classic The Smurfs. I have stylized it safely here to align with your database project!
| Family | Dinosaur / Creature | Name Meaning | Age / Time | Dimensions (Height / Length / Weight) | Where Found | Author & Year | Teodora's Comments (Legend Quest) |
| Herrerasauridae | Herrerasaurus ischigualastensis | "Herrera's lizard" | Late Triassic
(~230 Ma) |
H: 1.2 m (4 ft)
L: 6 m (20 ft) W: 350 kg |
Argentina | Reig, 1963 | "An enigmatic Triassic primitive runner with a sliding lower jaw. It sits right at the base of the dinosaur family tree." |
| Herrerasauridae | Smurfette smurfensis | "Smurfette from Smurfland" | Mythic / Triassic Fantasy | H: 10 cm (4 in)
L: 25 cm (10 in) W: 100 g |
Smurf Village | Fan Homage
(Peyo Lore) |
"Wait, a bright blue mini-dinosaur from a cartoon village? Adorable, but I'm keeping it away from Gargamel's alchemy set." |
| Herrerasauridae | Staurikosaurus pricei | "Southern Cross lizard" | Late Triassic
(~233 Ma) |
H: 80 cm (2.6 ft)
L: 2.2 m (7.2 ft) W: 30 kg |
Brazil | Colbert, 1970 | "Slender, athletic, and built entirely for speed. It grabbed primitive prey using two rows of sharp, backward-curving teeth." |
| Anchisauridae | Anchisaurus polyzelus | "Near lizard" | Early Jurassic
(~195 Ma) |
H: 60 cm (2 ft)
L: 2 m (6.6 ft) W: 20 kg |
Connecticut, USA | Marsh, 1885 | "One of the first North American long-necks found. It could walk on two legs or four, dropping down to graze on bushes." |
| Anchisauridae | Efraasia minor | "Efraas's lizard" | Late Triassic
(~210 Ma) |
H: 1 m (3.3 ft)
L: 6 m (20 ft) W: 300 kg |
Germany | Galton, 1973 | "A versatile Triassic browser with dextrous hands. It was the crucial blueprint for the multi-ton giants that followed." |
| Anchisauridae | Thecodontosaurus antiquus | "Socket-toothed lizard" | Late Triassic
(~205 Ma) |
H: 40 cm (1.3 ft)
L: 1.2 m (4 ft) W: 11 kg |
England | Morris, 1843 | "A tiny, nimble vegetarian that lived on prehistoric British islands. Its fossil teeth look just like miniature serrated saws." |
| Plateosauridae | Massospondylus kaalae | "Longer vertebra" | Early Jurassic
(~200 Ma) |
H: 1.5 m (5 ft)
L: 4–6 m (13–20 ft) W: 1 metric ton |
South Africa | Barrett, 2009 | "Amazing fossil nests show their babies hatched without teeth and needed parents to feed them. Mesozoic childcare!" |
| Plateosauridae | Mussaurus patagonicus | "Mouse lizard" | Late Triassic
(~215 Ma) |
H: 1.5 m (5 ft)
L: 6 m (20 ft) W: 1 metric ton |
Argentina | Bonaparte, 1979 | "Discovered as tiny hatchlings that could fit inside a human palm—hence 'mouse lizard.' The adults grew up to be massive!" |
| Plateosauridae | Plateosaurus gracilis | "Broad lizard" | Late Triassic
(~210 Ma) |
H: 2.5 m (8.2 ft)
L: 7–10 m (23–33 ft) W: 4 metric tons |
Germany | von Huene, 1905 | "The classic Triassic heavy tank. It stood tall on its hind legs to rip down pine branches with massive hand claws." |
| Melanorosauridae | Riojasaurus incertus | "La Rioja lizard" | Late Triassic
(~220 Ma) |
H: 3 m (10 ft)
L: 10 m (33 ft) W: 3 metric tons |
Argentina | Bonaparte, 1969 | "An absolute unit that fully committed to walking on all four legs. Its heavy bone structure paved the way for true Sauropods." |
Infraorder Sauropoda (True Giant Long-Necks)
| Family | Dinosaur | Name Meaning | Age / Time | Dimensions (Height / Length / Weight) | Where Found | Author & Year | Teodora's Comments (Legend Quest) |
| Cetiosauridae | Barapasaurus tagorei | "Big-legged lizard" | Early Jurassic
(~196 Ma) |
H: 4 m (13 ft)
L: 14 m (46 ft) W: 7 metric tons |
India | Jain et al., 1975 | "One of the earliest true sauropods. Its legs are built like solid stone pillars to support immense weight." |
| Cetiosauridae | Cetiosaurus oxoniensis | "Whale lizard" | Middle Jurassic
(~167 Ma) |
H: 4.5 m (15 ft)
L: 16 m (52 ft) W: 11 metric tons |
England | Phillips, 1871 | "Early scientists found its massive bones and genuinely thought it was a gigantic sea whale. Nope, just a mega land-grazer!" |
| Diplodocidae | Amargasaurus cazaui | "La Amarga lizard" | Early Cretaceous
(~122 Ma) |
H: 2.6 m (8.5 ft)
L: 10 m (33 ft) W: 2 metric tons |
Argentina | Salgado, 1991 | "A stunning look! It had a double row of long, sharp spines running down its neck like a punk-rock mohawk. High visual tier." |
| Diplodocidae | Apatosaurus ajax | "Deceptive lizard" | Late Jurassic
(~150 Ma) |
H: 6 m (19.7 ft)
L: 27 m (88.6 ft) W: 20 metric tons |
Colorado, USA | Marsh, 1877 | "The real identity behind 'Brontosaurus' for a long time. Incredibly thick, robust neck and a massive whip-like defense tail." |
| Diplodocidae | Dicraeosaurus sattleri | "Forked lizard" | Late Jurassic
(~150 Ma) |
H: 3 m (10 ft)
L: 12 m (40 ft) W: 4 metric tons |
Tanzania | Janensch, 1914 | "A short-necked, low-browsing sauropod with high y-shaped spine arches over its shoulders. Sleek and efficient." |
| Diplodocidae | Diplodocus hallorum | "Double beam" | Late Jurassic
(~150 Ma) |
H: 5.95 m (19.5 ft)
L: 32 m (105 ft) W: 25 metric tons |
New Mexico, USA | Gillette, 1891 | "Formerly known as Seismosaurus ('Earth-shaker'). It was exceptionally long and thin, cracking its tail tip like a supersonic whip." |
| Diplodocidae | Mamenchisaurus sinocanadorum | "Mamenchi ferry lizard" | Late Jurassic
(~160 Ma) |
H: 17.85 m (58.6 ft)
L: 26–35 m (85–115 ft) W: 25–60 metric tons |
China | Russell & Zheng, 1993 | "This species possesses the longest neck of any animal ever known—over 45 feet of neck alone! Absolutely unbelievable proportions." |
| Diplodocidae | Supersaurus vivianae | "Super lizard" | Late Jurassic
(~150 Ma) |
H: 16.46 m (54 ft)
L: 39–42 m (128–137 ft) W: 35–40 metric tons |
Colorado, USA | Jensen, 1985 | "A contender for the absolute longest vertebrate in earth's history. It could stretch across an entire football stadium block!" |
| Brachiosauridae | Brachiosaurus altithorax | "Arm lizard" | Late Jurassic
(~150 Ma) |
H: 15.5 m (51 ft)
L: 22 m (72 ft) W: 35 metric tons |
Colorado, USA; India | Riggs, 1903 | "Built like a colossal giraffe with front legs longer than its back legs. It could easily look into a four-story building window." |
| Brachiosauridae | Sauroposeidon proteles | "Lizard earthquake god" | Early Cretaceous
(~112 Ma) |
H: 16–18 m (52–60 ft)
L: 28–34 m (92–111 ft) W: 40–50 metric tons |
Oklahoma, USA | Wedel et al., 2000 | "Named after the god of earthquakes, and it fits. The highest-reaching, skyscraper dinosaur known to science." |
| Camarasauridae | Camarasaurus supremus | "Chambered lizard" | Late Jurassic
(~150 Ma) |
H: 9 m (29.5 ft)
L: 18 m (60 ft) W: 20 metric tons |
Colorado, USA | Cope, 1877 | "The most common long-neck of the American West. Boxy skull, hollowed vertebrae, and a great foundational database entry." |
| Camarasauridae | Euhelopus zdanskyi | "True marsh foot" | Early Cretaceous
(~120 Ma) |
H: 3.8 m (12.5 ft)
L: 15 m (50 ft) W: 4 metric tons |
China | Wiman, 1929 | "A distinct Asian long-neck with a heavy skull. Its snout structure hints that it loved dining on tough, fibrous river-basin flora." |
| Camarasauridae | Opisthocoelicaudia skarzynskii | "Rear-cavity tail" | Late Cretaceous
(~70 Ma) |
H: 2.5 m (8.2 ft)
L: 12 m (40 ft) W: 10 metric tons |
Mongolia | Borsuk-Białynicka, 1977 | "Famous for being found completely intact except for its head. Its dense tail joints let it prop itself up like a tripod!" |
| Titanosauridae | Alamosaurus sanjuanensis | "Alamo lizard" | Late Cretaceous
(~66 Ma) |
H: 13 m (42.7 ft)
L: 26–30 m (85–100 ft) W: 30–50 metric tons |
Texas, USA | Gilmore, 1922 | "The last surviving giant long-neck in North America. It actively shared its environment with T. rex. Imagine that matchup!" |
| Titanosauridae | Dreadnoughtus schrani | "Fears nothing" | Late Cretaceous
(~77 Ma) |
H: 18.7 m (61.4 ft)
L: 26 m (85 ft) W: 49 metric tons |
Argentina | Lacovara et al., 2014 | "Named after the massive Dreadnought battleships because an adult would have been completely immune to predator attacks." |
| Titanosauridae | Patagotitan mayorum | "Patagonian titan" | Middle Cretaceous
(~100 Ma) |
H: 20 m (66.5 ft)
L: 37 m (122 ft) W: 62–70 metric tons |
Argentina | Carballido et al., 2017 | "An absolute heavyweight champion of the world. One single thigh bone is taller than our entire team!" |
| Titanosauridae | Puertasaurus reuili | "Puerta's lizard" | Late Cretaceous
(~70 Ma) |
H: 12.5 m (40.7 ft)
L: 30 m (100 ft) W: 50 metric tons |
Argentina | Novas et al., 2005 | "It has the widest chest cavity ever discovered on a dinosaur—nearly 16 feet wide. Built like an armored freight train." |
| Titanosauridae | Saltasaurus loricatus | "Salta lizard" | Late Cretaceous
(~70 Ma) |
H: 2 m (6.6 ft)
L: 8.5 m (28 ft) W: 2.5 metric tons |
Argentina | Bonaparte & Powell, 1980 | "A small titanosaur that innovated! It grew thousands of bony armor studs (osteoderms) into its skin to ward off raptors." |
💡 Paleontology Insights for Legend Quest:
- Taxonomic Evolution: Notice how the early Herrerasaurids are highly agile, bipedal generalists. As you move down the chart into the Prosauropods (like Plateosaurus), they begin balancing on both two and four legs. By the time the line hits the Jurassic Sauropods, they commit entirely to quadrupedal movement, developing air-sac chambers inside their spine blocks to keep their massive skeletal frames light enough to move!
Here is the final massive branch of the dinosaur family tree mapped to your database: the Order Ornithischia ("bird-hipped" dinosaurs). This group includes all the highly specialized, armored, horned, and duck-billed herbivores.
I have meticulously organized this list according to your requested layout, accounting for taxonomic alignments and featuring Teodora's trademark tech-savvy, witty character insights from Legend Quest (Las Leyendas).
🦖 SUBORDER ORNITHOPODA (The Bird-Feet Browsers)
Families Heterodontosauridae, Fabrosauridae & Hypsilophodontidae
| Family | Dinosaur | Name Meaning | Age / Time | Dimensions (Height / Length / Weight) | Where Found | Author & Year | Teodora's Comments (Legend Quest) |
| Heterodontosauridae | Echinodon becklesii | "Prickly tooth" | Early Cretaceous
(~140 Ma) |
H: 15 cm (6 in)
L: 60 cm (2 ft) W: 500 g |
England | Owen, 1861 | "A tiny, spike-backed vegetarian that randomly had giant vampire fangs at the front of its mouth. Totally goth." |
| Heterodontosauridae | Heterodontosaurus tucki | "Different-toothed lizard" | Early Jurassic
(~200 Ma) |
H: 35 cm (1.1 ft)
L: 1.2 m (4 ft) W: 2–3 kg |
South Africa | Crompton & Charig, 1962 | "It has three completely different types of teeth. It’s like a mammalian multi-tool disguised inside a tiny reptile body." |
| Fabrosauridae | Lesothosaurus diagnosticus | "Lizard from Lesotho" | Early Jurassic
(~200 Ma) |
H: 40 cm (1.3 ft)
L: 2 m (6.6 ft) W: 6–8 kg |
Lesotho, South Africa | Galton, 1978 | "Sleek, lanky, and totally built for running away. It's the blueprint ancestor for almost every plant-eater on this list!" |
| Fabrosauridae | Pisanosaurus mertii | "Pisano's lizard" | Late Triassic
(~228 Ma) |
H: 30 cm (1 ft)
L: 1 m (3.3 ft) W: 2 kg |
Argentina | Casamiquela, 1967 | "A heavily debated phantom. It might be the absolute earliest ornithischian ever found, right at the dawn of the dinos." |
| Fabrosauridae | Scutellosaurus lawleri | "Little-shielded lizard" | Early Jurassic
(~196 Ma) |
H: 40 cm (1.3 ft)
L: 1.5 m (5 ft) W: 3 kg |
Arizona, USA | Colbert, 1981 | "A tiny runner wearing hundreds of mini armor studs on its back. The great-great-grandpappy of the giant Ankylosaurs!" |
| Hypsilophodontidae | Callovosaurus leedsi | "Callovian lizard" | Middle Jurassic
(~163 Ma) |
H: 75 cm (2.5 ft)
L: 2.5 m (8 ft) W: 120 kg |
England | Galton, 1980 | "An ancient, rare European runner. Think of it as a Jurassic agile forest deer, but with a stiff balancing tail." |
| Hypsilophodontidae | Dryosaurus elderae | "Tree lizard" | Late Jurassic
(~150 Ma) |
H: 1.2 m (4 ft)
L: 3 m (10 ft) W: 100 kg |
Utah, USA | Carpenter & Galton, 2018 | "Big eyes, powerful legs, no armor. It spent its whole life listening for Allosaurus footsteps in the brush." |
| Hypsilophodontidae | Hypsilophodon foxii | "High-crested tooth" | Early Cretaceous
(~125 Ma) |
H: 60 cm (2 ft)
L: 1.8 m (6 ft) W: 20 kg |
England | Huxley, 1869 | "Early scientists literally thought this thing climbed trees like a modern kangaroo. Spoiler: it didn't. It sprinted on flat ground." |
| Hypsilophodontidae | Nanosaurus agilis | "Small lizard" | Late Jurassic
(~150 Ma) |
H: 40 cm (1.3 ft)
L: 1 m (3.3 ft) W: 2–4 kg |
Wyoming, USA | Marsh, 1877 | "This little ghost was renamed and shifted around for over a century. It's basically a micro-browser hiding in the ferns." |
| Hypsilophodontidae | Parksosaurus warreni | "Parks's lizard" | Late Cretaceous
(~70 Ma) |
H: 1 m (3.3 ft)
L: 2.5 m (8 ft) W: 45 kg |
Alberta, Canada | Sternberg, 1937 | "A tough little survivor that lasted into the late Cretaceous alongside the giant duckbills. Persistence is key!" |
| Hypsilophodontidae | Thescelosaurus garbanii | "Wonderful lizard" | Late Cretaceous
(~66 Ma) |
H: 1.2 m (4 ft)
L: 4–4.5 m (13–15 ft) W: 300 kg |
Montana, USA | Morris, 1976 | "A heavy-set, robust runner that resisted the trend of getting faster. It preferred bulk and brute force to survive raptors." |
Families Iguanodontidae & Hadrosauridae (The Duckbills)
| Family | Dinosaur | Name Meaning | Age / Time | Dimensions (Height / Length / Weight) | Where Found | Author & Year | Teodora's Comments (Legend Quest) |
| Iguanodontidae | Camptosaurus dispar | "Flexible lizard" | Late Jurassic
(~150 Ma) |
H: 2 m (6.6 ft)
L: 6 m (20 ft) W: 800 kg |
Wyoming, USA | Marsh, 1879 | "A heavy-set browser that could walk on two legs to reach high leaves or cruise on four. The prequel to Iguanodon." |
| Iguanodontidae | Iguanodon bernissartensis | "Iguana tooth" | Early Cretaceous
(~125 Ma) |
H: 5.2 m (17.1 ft)
L: 13.5 m (44.3 ft) W: 4 metric tons |
Belgium, Germany | Boulenger, 1881 | "Famously discovered with massive conical thumb spikes. Early paleontology put it on its nose—now we know it’s for stabbing!" |
| Iguanodontidae | Muttaburrasaurus langdoni | "Muttaburra lizard" | Early Cretaceous
(~105 Ma) |
H: 2.5 m (8.2 ft)
L: 8 m (26 ft) W: 2.8 metric tons |
Australia | Bartholomai & Molnar, 1981 | "It had a massive, hollow, inflated snout. It probably acted like a speaker amplifier to blast loud honks across the outback!" |
| Iguanodontidae | Ouranosaurus nigeriensis | "Brave lizard" | Early Cretaceous
(~115 Ma) |
H: 2.7 m (9 ft)
L: 7 m (23 ft) W: 2.2 metric tons |
Niger | Taquet, 1976 | "A gorgeous duckbill cousin with a massive sail running down its spine. It shared its rivers with Spinosaurus—not a fun neighbor." |
| Iguanodontidae | Tenontosaurus dossi | "Sinew lizard" | Early Cretaceous
(~110 Ma) |
H: 2.2 m (7.2 ft)
L: 6.5 m (21 ft) W: 1 metric ton |
Texas, USA | Winkler et al., 1997 | "An absolute unit of a tail—it took up two-thirds of its body length! Famously hunted by packs of Deinonychus raptors." |
| Hadrosauridae | Bactrosaurus johnsoni | "Club lizard" | Late Cretaceous
(~95 Ma) |
H: 2 m (6.6 ft)
L: 6 m (20 ft) W: 1.5 metric tons |
China, Mongolia | Gilmore, 1933 | "An early, primitive flat-headed duckbill. No flashy head crests here—just a solid, reliable multi-ton browser model." |
| Hadrosauridae | Corythosaurus casuarius | "Helmet lizard" | Late Cretaceous
(~75 Ma) |
H: 3.5 m (11.5 ft)
L: 9 m (30 ft) W: 4 metric tons |
Alberta, Canada; Wyoming, USA | Brown, 1914 | "Rocking a giant, hollow, dinner-plate crest on its skull. It used it like a trombone to send low-frequency alerts to its herd." |
| Hadrosauridae | Edmontosaurus regalis | "Edmonton lizard" | Late Cretaceous
(~73 Ma) |
H: 4 m (13 ft)
L: 12 m (40 ft) W: 4 metric tons |
Alberta, Canada; Wyoming, USA | Lambe, 1917 | "A flat-headed giant. Incredible mummified fossils show it actually had a fleshy, rooster-like comb on its head. Total trendsetter." |
| Hadrosauridae | Hadrosaurus foulkii | "Heavy lizard" | Late Cretaceous
(~80 Ma) |
H: 3 m (10 ft)
L: 8 m (26 ft) W: 3 metric tons |
New Jersey, USA | Leidy, 1858 | "The ultimate historical milestone. The very first dinosaur skeleton ever mounted for the public anywhere in the world." |
| Hadrosauridae | Hypacrosaurus stebingeri | "Near the highest lizard" | Late Cretaceous
(~75 Ma) |
H: 3.8 m (12.5 ft)
L: 9 m (30 ft) W: 4 metric tons |
Montana, USA | Horner & Currie, 1994 | "High-backed spines and a rounded crest. Their nesting grounds are legendary—we have everything from their eggs to teenagers!" |
| Hadrosauridae | Kritosaurus navajovius | "Separated lizard" | Late Cretaceous
(~73 Ma) |
H: 3 m (10 ft)
L: 9 m (30 ft) W: 3.5 metric tons |
New Mexico, USA | Brown, 1910 | "Possessed a distinct, humped, Roman-nose snout structure. Great for visual displays or asserting dominance in the herd." |
| Hadrosauridae | Lambeosaurus magnicristatus | "Lambe's lizard" | Late Cretaceous
(~75 Ma) |
H: 4 m (13 ft)
L: 9.5 m (31 ft) W: 4.5 metric tons |
Alberta, Canada | Sternberg, 1935 | "This species had a forward-pointing pommel crest that looks like an absolute sci-fi antenna. Incredible visual aesthetic." |
| Hadrosauridae | Maiasaura peeblesorum | "Good mother lizard" | Late Cretaceous
(~76 Ma) |
H: 2.5 m (8.2 ft)
L: 9 m (30 ft) W: 4 metric tons |
Montana, USA | Horner & Makela, 1979 | "The ultimate dino mom. Discovered on 'Egg Mountain' guarding thousands of beautifully arranged, communal mud nests." |
| Hadrosauridae | Olorotitan arharensis | "Gigantic swan" | Late Cretaceous
(~66 Ma) |
H: 4.5 m (15 ft)
L: 12 m (40 ft) W: 5 metric tons |
Russia | Godefroit et al., 2003 | "A massive duckbill with an elegant, elongated neck and a backwards-pointing crest shaped like an axe. High mythic tier." |
| Hadrosauridae | Parasaurolophus walkeri | "Near crested lizard" | Late Cretaceous
(~75 Ma) |
H: 4 m (13 ft)
L: 10 m (33 ft) W: 3.5 metric tons |
Alberta, Canada | Parks, 1922 | "The king of communication. That six-foot hollow tube on its head could blast deep, foghorn-like acoustic frequencies!" |
| Hadrosauridae | Prosaurolophus maximus | "Before Saurolophus" | Late Cretaceous
(~75 Ma) |
H: 3 m (10 ft)
L: 9 m (30 ft) W: 3.5 metric tons |
Alberta, Canada | Brown, 1916 | "It has a small, solid bony ridge right between its eyes. The conservative, elegant precursor to the mega-crested types." |
| Hadrosauridae | Saurolophus osborni | "Crested lizard" | Late Cretaceous
(~70 Ma) |
H: 3.2 m (10.5 ft)
L: 9.8 m (32 ft) W: 3.8 metric tons |
Alberta, Canada | Brown, 1912 | "A long spike crest extending straight out the back of its skull. It might have had inflatable skin bags on its nose to honk!" |
| Hadrosauridae | Shantungosaurus giganteus | "Shandong lizard" | Late Cretaceous
(~73 Ma) |
H: 6 m (20 ft)
L: 15–16 m (50–52 ft) W: 16 metric tons |
China | Hu, 1973 | "An absolute leviathan duckbill. It was literally larger than a T. rex and weighed more than two elephants combined. Mind-blowing bulk." |
| Hadrosauridae | Tsintaosaurus spinorhinus | "Qingdao lizard" | Late Cretaceous
(~70 Ma) |
H: 3.5 m (11.5 ft)
L: 10 m (33 ft) W: 4 metric tons |
China | Young, 1958 | "For years, scientists thought its crest was a single vertical horn like a unicorn. Turns out it was part of a larger hollow sail!" |
🦄 SUBORDER CERATOPIA (The Bone-Heads & Horned Giants)
Families Pachycephalosauridae, Psittacosauridae & Protoceratopidae
| Family | Dinosaur | Name Meaning | Age / Time | Dimensions (Height / Length / Weight) | Where Found | Author & Year | Teodora's Comments (Legend Quest) |
| Pachycephalosauridae | Dracorex hogwartsia | "Dragon king of Hogwarts" | Late Cretaceous
(~66 Ma) |
H: 1.2 m (4 ft)
L: 3 m (10 ft) W: 200 kg |
South Dakota, USA | Bakker et al., 2006 | "Named after Harry Potter! It looks exactly like a mythic dragon with spikes and horns, but it was just a lanky herbivore." |
| Pachycephalosauridae | Homalocephale calathocercos | "Even head" | Late Cretaceous
(~70 Ma) |
H: 60 cm (2 ft)
L: 1.8 m (6 ft) W: 40 kg |
Mongolia | Maryańska & Osmólska, 1974 | "A flat-headed bonehead with an extremely wide hip setup. It probably used its flat skull for side-butting its rivals!" |
| Pachycephalosauridae | Pachycephalosaurus wyomingensis | "Thick-headed lizard" | Late Cretaceous
(~68–66 Ma) |
H: 1.5 m (5 ft)
L: 4.5 m (15 ft) W: 450 kg |
Wyoming, USA | Brown & Schlaikjer, 1943 | "A skull made of 9 inches of solid bone! The absolute champion of Mesozoic demolition derbies. Keep your distance." |
| Pachycephalosauridae | Prenocephale prenes | "Sloping head" | Late Cretaceous
(~70 Ma) |
H: 80 cm (2.6 ft)
L: 2.4 m (8 ft) W: 130 kg |
Mongolia | Maryańska & Osmólska, 1974 | "A beautifully rounded, helmet-like dome skull lined with small bony row nodules. Sleek, fast, and ready to challenge." |
| Pachycephalosauridae | Stegoceras validum | "Horned roof" | Late Cretaceous
(~75 Ma) |
H: 70 cm (2.3 ft)
L: 2 m (6.6 ft) W: 40 kg |
Alberta, Canada | Lambe, 1902 | "The first bonehead found with a high, distinct dome skull. It was roughly the size of a modern mountain goat." |
| Pachycephalosauridae | Stygimoloch spinifer | "Demon from the River Styx" | Late Cretaceous
(~66 Ma) |
H: 1.2 m (4 ft)
L: 3 m (10 ft) W: 200 kg |
Montana, USA | Galton & Sues, 1983 | "Fierce name! It had massive, demonic spikes coming out the back of its dome. It, Dracorex, and Pachy are likely the same dino at different ages!" |
| Psittacosauridae | Psittacosaurus meileyingensis | "Parrot lizard" | Early Cretaceous
(~120 Ma) |
H: 40 cm (1.3 ft)
L: 1–2 m (3.3–6.6 ft) W: 20–30 kg |
China | Sereno et al., 1888 | "A primitive, bipedal beak-face. Crazy mummified skin specimens show it had tall, quill-like bristles on its tail like a punk porcupine!" |
| Protoceratopidae | Bagaceratops rozhdestvenskyi | "Small horned face" | Late Cretaceous
(~75 Ma) |
H: 30 cm (1 ft)
L: 1 m (3.3 ft) W: 22 kg |
Mongolia | Maryańska & Osmólska, 1975 | "A miniature hornless frill-face with a subtle nose bump. It's like a pocket-sized Triceratops puppy for the database landscape." |
| Leptoceratopidae | Leptoceratops gracilis | "Slender horned face" | Late Cretaceous
(~66 Ma) |
H: 80 cm (2.6 ft)
L: 2.5 m (8 ft) W: 100 kg |
Alberta, Canada | Brown, 1914 | "It completely refused to follow the trend of growing giant brow horns. Sticking to its classic, small, forest-dwelling roots." |
| Leptoceratopidae | Montanoceratops cerorhynchus | "Montana horned face" | Late Cretaceous
(~70 Ma) |
H: 1 m (3.3 ft)
L: 3 m (10 ft) W: 170 kg |
Montana, USA | Sternberg, 1951 | "A robust, early-style frill-face that possessed deep, deep tail arches. It likely used its tail flag for signaling down in the valleys." |
| Protoceratopidae | Protoceratops hellenikorhinus | "First horned face" | Late Cretaceous
(~72 Ma) |
H: 75 cm (2.5 ft)
L: 2–2.5 m (6.6–8 ft) W: 180 kg |
Mongolia | Lambert et al., 2001 | "This species had a distinct, dual-arch nasal ridge. Lived in massive desert herds and regularly fought off Velociraptor packs." |
Family Ceratopsidae (The True Horned Giants)
| Family | Dinosaur | Name Meaning | Age / Time | Dimensions (Height / Length / Weight) | Where Found | Author & Year | Teodora's Comments (Legend Quest) |
| Ceratopsidae | Brachyceratops montanensis | "Short horned face" | Late Cretaceous
(~75 Ma) |
H: 1.2 m (4 ft)
L: 4 m (13 ft) W: 800 kg |
Montana, USA | Gilmore, 1914 | "Found as a cluster of juveniles! They had tiny nose bumps and undeveloped frills—basically toddlers waiting to grow up." |
| Ceratopsidae | Centrosaurus apertus | "Pointed lizard" | Late Cretaceous
(~76 Ma) |
H: 2.2 m (7.2 ft)
L: 5.5 m (18 ft) W: 2.3 metric tons |
Alberta, Canada | Lambe, 1904 | "A single massive nose horn and forward-curling hooks on its frill rim. Mega-bonebeds prove they lived in thousands-strong super-herds." |
| Ceratopsidae | Chasmosaurus belli | "Chasm lizard" | Late Cretaceous
(~75 Ma) |
H: 2 m (6.6 ft)
L: 5 m (16 ft) W: 2 metric tons |
Alberta, Canada | Lambe, 1902 | "A colossal, heart-shaped shield frill with massive open windows inside the bone frame. Probably used for striking color displays!" |
| Ceratopsidae | Lokiceratops rangiformis | "Loki's horned face" | Late Cretaceous
(~78 Ma) |
H: 2.5 m (8.2 ft)
L: 6.7 m (22 ft) W: 5 metric tons |
Montana, USA | Loewen et al., 2024 | "An incredible discovery! Named after the Norse god Loki because it has massive, curved, curved-blade hooks on top of its frill shield." |
| Ceratopsidae | Nasutoceratops titusi | "Large-nosed horned face" | Late Cretaceous
(~76 Ma) |
H: 2.3 m (7.5 ft)
L: 4.5 m (15 ft) W: 1.5 metric tons |
Utah, USA | Sampson et al., 2013 | "This one is wild. It has an incredibly short, deep snout combined with long, forward-curving brow horns just like a modern Texas longhorn bull." |
| Ceratopsidae | Pachyrhinosaurus lakustai | "Thick-nosed lizard" | Late Cretaceous
(~72 Ma) |
H: 2.5 m (8.2 ft)
L: 6 m (20 ft) W: 3 metric tons |
Alberta, Canada | Currie et al., 2008 | "No horns here! Instead, it wore a massive, thick boss of solid bone over its nose. Perfect for head-butting theropods into oblivion." |
| Ceratopsidae | Pentaceratops sternbergii | "Five-horned face" | Late Cretaceous
(~74 Ma) |
H: 5.2 m (17.1 ft)
L: 6.5 m (21 ft) W: 5 metric tons |
New Mexico, USA | Osborn, 1923 | "The three standard horns plus two elongated cheek flares make five. It holds one of the largest land skull specimens in the universe!" |
| Ceratopsidae | Sinoceratops zhuchengensis | "Chinese horned face" | Late Cretaceous
(~73 Ma) |
H: 2.5 m (8.2 ft)
L: 6 m (20 ft) W: 2 metric tons |
China | Xu et al., 2010 | "The first true large horned ceratopsid ever discovered out in Asia! Its frill looks like a crown decorated with forward-hooking spikes." |
| Ceratopsidae | Styracosaurus ovatus | "Spiked lizard" | Late Cretaceous
(~75 Ma) |
H: 2.3 m (7.5 ft)
L: 5.5 m (18 ft) W: 2.7 metric tons |
Montana, USA | Gilmore, 1930 | "An absolute visual powerhouse. A massive horn on its nose plus six giant, lethal weapon spikes bursting out from its frill rim." |
| Ceratopsidae | Triceratops horridus | "Three-horned face" | Late Cretaceous
(~68–66 Ma) |
H: 3 m (10 ft)
L: 8–9 m (26–30 ft) W: 6–12 metric tons |
Western NA | Marsh, 1889 | "The classic heavy-combat unit. Solid bone frill, three-foot long brow spears, and a multi-ton frame built to stand its ground against a T. rex." |
🛡️ SUBORDER STEGOSAURIA (The Plated Tanks)
Families Stegosauridae & Scelidosauridae
| Family | Dinosaur | Name Meaning | Age / Time | Dimensions (Height / Length / Weight) | Where Found | Author & Year | Teodora's Comments (Legend Quest) |
| Stegosauridae | Chungkingosaurus jiangbeiensis | "Chongqing lizard" | Late Jurassic
(~160 Ma) |
H: 1.2 m (4 ft)
L: 4 m (13 ft) W: 1 metric ton |
China | Dong et al., 1983 | "One of the smaller, primitive plate-backs. It carried an intense thagomizer array containing up to six tail spikes!" |
| Stegosauridae | Gigantspinosaurus sichuanensis | "Giant spined lizard" | Late Jurassic
(~160 Ma) |
H: 1.5 m (5 ft)
L: 4.2 m (14 ft) W: 700 kg |
China | Ouyang, 1992 | "Misleading name—it wasn't giant, but it did have absolutely colossal shoulder spikes pointing backwards like jet wings!" |
| Stegosauridae | Kentrosaurus aethiopicus | "Spiked lizard" | Late Jurassic
(~150 Ma) |
H: 1.6 m (5.2 ft)
L: 4.5 m (15 ft) W: 1 metric ton |
Tanzania | Hennig, 1915 | "Plates on the neck, but long, lethal spikes over the lower back, hips, and tail. A literal walking pin cushion. Do not touch." |
| Stegosauridae | Stegosaurus stenops | "Roof lizard" | Late Jurassic
(~150 Ma) |
H: 3.5 m (11.5 ft)
L: 9 m (30 ft) W: 4–5 metric tons |
Western NA | Marsh, 1887 | "Massive alternating display plates on its back paired with a four-spike tail whip. Brain the size of a walnut, but high combat tier." |
| Stegosauridae | Tuojiangosaurus multispinus | "Tuo River lizard" | Late Jurassic
(~160 Ma) |
H: 2 m (6.6 ft)
L: 7 m (23 ft) W: 2.8 metric tons |
China | Dong et al., 1977 | "Asia's classic counterpart to Stegosaurus. Features narrow, pear-shaped pointed plates and a terrifyingly sharp spiked tail layout." |
| Stegosauridae | Wuerhosaurus ordosensis | "Wuerho lizard" | Early Cretaceous
(~130 Ma) |
H: 1.5 m (5 ft)
L: 5 m (16 ft) W: 1.2 metric tons |
China | Dong, 1993 | "One of the last surviving stegosaurs. Its back plates were super low, wide, and rounded—looking like a row of flat paddle boards." |
| Scelidosauridae (Basal) | Scelidosaurus harrisonii | "Limb lizard" | Early Jurassic
(~191 Ma) |
H: 1 m (3.3 ft)
L: 4 m (13 ft) W: 270 kg |
England | Owen, 1859 | "An incredible evolutionary link. Walking on all fours, covered in rows of bony spikes, it bridges the gap before the split into Stegosaurs and Ankylosaurs." |
🔨 SUBORDER ANKYLOSAURIA (The Club-Tailed Armored Fortresses)
Families Nodosauridae & Ankylosauridae
| Family | Dinosaur | Name Meaning | Age / Time | Dimensions (Height / Length / Weight) | Where Found | Author & Year | Teodora's Comments (Legend Quest) |
| Nodosauridae | Hylaeosaurus armatus | "Forest lizard" | Early Cretaceous
(~135 Ma) |
H: 1.2 m (4 ft)
L: 5 m (16 ft) W: 2 metric tons |
England | Mantell, 1833 | "The third dinosaur ever named in history! Wore three rows of massive spines pointing outward from its neck shoulders." |
| Nodosauridae | Panoplosaurus mirus | "Completely armored lizard" | Late Cretaceous
(~75 Ma) |
H: 2 m (6.6 ft)
L: 5.5 m (18 ft) W: 2.5 metric tons |
Alberta, Canada | Lambe, 1919 | "No tail club, but it covered its entire head and cheeks in solid plates of bone armor. Built like an impenetrable safe." |
| Nodosauridae | Nodosaurus textilis | "Knobby lizard" | Late Cretaceous
(~95 Ma) |
H: 1.5 m (5 ft)
L: 5 m (16 ft) W: 1.5 metric tons |
Wyoming, USA | Marsh, 1889 | "The family namesake. Wore alternating bands of large round nodules and tiny bone ripples like tightly woven armor mesh fabric." |
| Nodosauridae | Sauropelta edwardsorum | "Lizard shield" | Early Cretaceous
(~108 Ma) |
H: 1.7 m (5.5 ft)
L: 5.2 m (17 ft) W: 1.5 metric tons |
Montana, USA | Ostrom, 1970 | "Wore row after row of thick mosaic armor scales plus massive side spikes on its neck to intercept charging raptors." |
| Nodosauridae | Silvisaurus condrayi | "Forest lizard" | Late Cretaceous
(~100 Ma) |
H: 1 m (3.3 ft)
L: 4 m (13 ft) W: 1 metric ton |
Kansas, USA | Eaton, 1960 | "A primitive, early nodosaur that surprisingly still kept a few tiny teeth at the very front of its beak. Evolution taking its time!" |
| Nodosauridae | Struthiosaurus transilvanicus | "Ostrich lizard" | Late Cretaceous
(~66 Ma) |
H: 70 cm (2.3 ft)
L: 2–2.5 m (6.6–8 ft) W: 300 kg |
Romania | Nopcsa, 1915 | "An armored dwarf! Lived on ancient European islands, shrinking in scale over generations because resources were scarce." |
| Ankylosauridae | Ankylosaurus magniventris | "Fused lizard" | Late Cretaceous
(~68–66 Ma) |
H: 3.9 m (12.5 ft)
L: 10.1 m (33.1 ft) W: 6 metric tons |
Montana, USA | Brown, 1908 | "The ultimate living tank. Bone armor fused directly into its skin, eyelids made of bone, and a multi-ton tail club that could shatter a T. rex ankle." |
| Ankylosauridae | Euoplocephalus tutus | "Well-armed head" | Late Cretaceous
(~75 Ma) |
H: 1.8 m (6 ft)
L: 5.5 m (18 ft) W: 2.5 metric tons |
Alberta, Canada | Lambe, 1902 | "Even its eyelids were armor plates! Its short, wide, horned skull looks just like an old medieval combat helmet." |
| Ankylosauridae | Pinacosaurus grangeri | "Plank lizard" | Late Cretaceous
(~75 Ma) |
H: 1.4 m (4.6 ft)
L: 5 m (16 ft) W: 1.8 metric tons |
Mongolia | Gilmore, 1933 | "An exceptionally lightweight, fast ankylosaur. It had unique extra breathing nostril holes in its nose. High endurance unit!" |
| Ankylosauridae | Tarchia teresae | "Brainy one" | Late Cretaceous
(~72 Ma) |
H: 2.2 m (7.2 ft)
L: 6 m (20 ft) W: 3 metric tons |
Mongolia | Penkalski, 2017 | "Named because its skull case was larger than other desert ankylosaurs. Big brain power paired with a massive bone club tail!" |
💡 Architectural Database Breakdown:
- The "Bird-Hipped" Irony: As Dr. Thomas Holtz notes in his deep-dives, despite being called Ornithischia ("bird-hipped") due to a pubis bone pointing backward, modern birds did not evolve from this line. Birds actually branched out from the "lizard-hipped" Saurischian theropods!
- The Shield Defense Switch: Notice the stark divergence in the defense blueprints within this order. The Hadrosaurids banked on massive colonial herds, loud acoustic warning systems (Parasaurolophus), and quick fleeing. Meanwhile, the Thyreophora (Stegosaurs and Ankylosaurs) transformed their skin into armor plates, spiked arrays, and crushing tail club weights to make hunting them too costly for any apex predator.
