Dinosaur Family Size Chart

Dinosaurs

Here are the estimated sizes for the listed pterosaur species:

Suborder: Rhamphorhynchoidea

Family: Dimorphodontidae

Dimorphodon macronyx – Wingspan: ~1.4 meters (4.6 feet), Body length: ~1 meter (3.3 feet) Early Jurassic (~195 Mya), England

Family: Eudimorphodontidae

Eudimorphodon ranzii – Wingspan: ~1 meter (3.3 feet), Body length: ~0.7 meters (2.3 feet) Late Triassic (~210 Mya), Italy

Family: Rhamphorhynchidae

Anurognathus ammoni – Wingspan: ~0.5 meters (1.6 feet), Body length: ~0.2 meters (8 inches) Late Jurassic (~150 Mya), Germany
Rhamphorhynchus etchesi – Wingspan: ~1.8 meters (5.9 feet), Body length: ~1 meter (3.3 feet) Late Jurassic (~150 Mya), England
Scaphognathus crassirostris – Wingspan: ~1 meter (3.3 feet), Body length: ~0.8 meters (2.6 feet) Late Jurassic (~150 Mya), Germany
Sordes pilosus – Wingspan: ~0.6 meters (2 feet), Body length: ~0.4 meters (1.3 feet) Late Jurassic (~150 Mya), Kazakhstan

Suborder: Pterodactyloidea

Family: Dsungaripteridae

Dsungaripterus weii – Wingspan: ~3.5 meters (11.5 feet), Body length: ~1.5 meters (4.9 feet) Early Cretaceous (~125 Mya), China

Family: Pterodaustriidae

Arthurdactylus conandoylei – Wingspan: ~4.6 meters (15 feet), Body length: ~2 meters (6.6 feet) Early Cretaceous (~110 Mya), Brazil
Pterodaustro guinazui – Wingspan: ~2.5–3 meters (8.2–9.8 feet), Body length: ~1.2 meters (3.9 feet) Early Cretaceous (~105 Mya), Argentina

Family: Ornithocheiridae

Pteranodon sternbergi – Wingspan: ~7 meters (23 feet), Body length: ~3.5 meters (11.5 feet) Late Cretaceous (~86–84 Mya), USA (Kansas)
Quetzalcoatlus lawsoni – Wingspan: ~10–14.50 meters (33–47.6 feet), Body length: ~6 meters (19.7 feet) Late Cretaceous (~70–66 Mya), USA (Texas)

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

Here are the estimated sizes for the listed theropod species:

Suborder: Theropoda (Carnivorous Dinosaurs)

Infraorder: Coelurosauria

Family: Podokesauridae

Coelophysis bauri – Length: ~3 meters (10 feet), Height: ~1 meter (3.3 feet), Weight: ~20 kg (44 lbs) Late Triassic (~225 Mya), USA (New Mexico)
Procompsognathus triassicus – Length: ~1 meter (3.3 feet), Height: ~0.4 meters (1.3 feet), Weight: ~1 kg (2.2 lbs) Late Triassic (~210 Mya), Germany
Saltopus elginensis – Length: ~0.6 meters (2 feet), Height: ~0.25 meters (10 inches), Weight: ~1 kg (2.2 lbs) Late Triassic (~225 Mya), Scotland

Family: Coeluridae

Coelurus fragilis – Length: ~2.5 meters (8 feet), Height: ~1 meter (3.3 feet), Weight: ~20 kg (44 lbs) Late Jurassic (~150 Mya), USA (Western USA)
Moros intrepidus – Length: ~3 meters (10 feet), Height: ~1.2 meters (4 feet), Weight: ~78 kg (172 lbs) Late Jurassic (~150 Mya), North America

Family: Compsognathidae

Compsognathus longipes – Length: ~1.4 meters (4.6 feet), Height: ~0.4 meters (1.3 feet), Weight: ~3 kg (6.6 lbs) Late Jurassic (~150 Mya), Germany, France

Family: Ornithomimidae

Dromiceiomimus samueli – Length: ~3.5 meters (11.5 feet), Height: ~1.5 meters (5 feet), Weight: ~100 kg (220 lbs) Late Cretaceous (~70 Mya), North America
Gallimimus bullatus – Length: ~6 meters (20 feet), Height: ~2 meters (6.6 feet), Weight: ~440 kg (970 lbs) Late Cretaceous (~70 Mya), Mongolia
Ornithomimus velox – Length: ~3.5 meters (11.5 feet), Height: ~1.5 meters (5 feet), Weight: ~100 kg (220 lbs) Late Cretaceous (~70 Mya), North America
Struthiomimus altus – Length: ~4.3 meters (14 feet), Height: ~1.8 meters (6 feet), Weight: ~150 kg (330 lbs) Late Cretaceous (~70 Mya), North America

Family: Deinocheiridae

Deinocheirus mirificus – Length: ~11 meters (36 feet), Height: ~3.6 meters (12 feet), Weight: ~6,000 kg (13,200 lbs) Late Cretaceous (~70 Mya), Mongolia

Family: Oviraptoridae

Oviraptor philoceratops – Length: ~1.5 meters (5 feet), Height: ~0.8 meters (2.6 feet), Weight: ~15 kg (33 lbs) Late Cretaceous (~75 Mya), Mongolia

Family: Therizinosauridae

Therizinosaurus cheloniformis – Length: ~10 meters (33 feet), Height: ~5 meters (16 feet), Weight: ~5,000 kg (11,000 lbs) Late Cretaceous (~70 Mya), Mongolia

Infraorder: Coelurosauria, Deinonychosauria

Family: Saurornithoididae

Stenonychosaurus inequalis – Length: ~2.5 meters (8 feet), Height: ~1 meter (3.3 feet), Weight: ~50 kg (110 lbs) Late Cretaceous (~75 Mya), North America
Troodon formosus – Length: ~2.4 meters (7.9 feet), Height: ~1 meter (3.3 feet), Weight: ~50 kg (110 lbs) Late Cretaceous (~75 Mya), North America

Family: Dromaeosauridae

Bambiraptor feinbergi – Length: ~1 meter (3.3 feet), Height: ~0.5 meters (1.6 feet), Weight: ~2 kg (4.4 lbs) Late Cretaceous (~75 Mya), North America
Deinonychus antirrhopus – Length: ~3.4 meters (11 feet), Height: ~1.2 meters (4 feet), Weight: ~100 kg (220 lbs) Early Cretaceous (~115 Mya), North America
Dromaeosaurus albertensis – Length: ~2 meters (6.6 feet), Height: ~1 meter (3.3 feet), Weight: ~15 kg (33 lbs) Late Cretaceous (~75 Mya), Canada
Saurornitholestes sullivani – Length: ~2 meters (6.6 feet), Height: ~0.8 meters (2.6 feet), Weight: ~15 kg (33 lbs) Late Cretaceous (~75 Mya), North America
Velociraptor osmolskae – Length: ~2.1 meters (7 feet), Height: ~0.5 meters (1.6 feet), Weight: ~15 kg (33 lbs) Late Cretaceous (~75 Mya), Mongolia

Order: Archaeopterygiformes

Archaeopteryx albersdoerferi – Wingspan: ~0.5 meters (1.6 feet), Body length: ~0.5 meters (1.6 feet), Weight: ~1 kg (2.2 lbs) Late Jurassic (~150 Mya), Germany

Infraorder: Ceratosauria

Family: Ceratosauridae

Ceratosaurus nasicornis – Length: ~6 meters (20 feet), Height: ~2 meters (6.6 feet), Weight: ~980 kg (2,160 lbs) Late Jurassic (~150 Mya), North America, Europe
Dilophosaurus wetherilli – Length: ~7 meters (23 feet), Height: ~2.5 meters (8.2 feet), Weight: ~400 kg (880 lbs) Early Jurassic (~193 Mya), North America
Elaphrosaurus bambergi – Length: ~6.2 meters (20.3 feet), Height: ~1.5 meters (5 feet), Weight: ~210 kg (460 lbs) Late Jurassic (~150 Mya), Tanzania

Infraorder: Carnosauria

Family: Megalosauridae

Eustreptospondylus oxoniensis – Length: ~5 meters (16.4 feet), Height: ~1.5 meters (5 feet), Weight: ~500 kg (1,100 lbs) Middle Jurassic (~165 Mya), England
Giganotosaurus carolinii – Length: ~15.5 meters (50.9 feet), Height: ~5.34 meters (17.5 feet), Weight: ~8,000 kg (17,600 lbs) Late Cretaceous (~98 Mya), Argentina
Poekilopleuron bucklandii – Length: ~9 meters (30 feet), Height: ~3 meters (10 feet), Weight: ~1,500 kg (3,300 lbs) Early Jurassic (~190 Mya), England
Proceratosaurus bradleyi – Length: ~3 meters (10 feet), Height: ~1 meter (3.3 feet), Weight: ~100 kg (220 lbs) Late Jurassic (~160 Mya), England

Family: Allosauridae

Allosaurus europaeus – Length: ~12.01 meters (39.4 feet), Height: ~4.02 meters (13.2 feet), Weight: ~1,500 kg (3,300 lbs) Late Jurassic (~150 Mya), Europe, North America (USA)
Yangchuanosaurus zigongensis – Length: ~10 meters (33 feet), Height: ~3.5 meters (11.5 feet), Weight: ~3,000 kg (6,600 lbs) Late Jurassic (~155 Mya), China

Family: Spinosauridae

Acrocanthosaurus atokensis – Length: ~11 meters (36 feet), Height: ~4 meters (13 feet), Weight: ~6,000 kg (13,200 lbs) Early Cretaceous (~125 Mya), North America
Spinosaurus aegyptiacus – Length: ~16 meters (52 feet), Height: ~5.5 meters (18 feet), Weight: ~7,000 kg (15,400 lbs) Early Cretaceous (~112 Mya), Africa

Family: Tyrannosauridae

Albertosaurus sarcophagus – Length: ~9 meters (30 feet), Height: ~3.5 meters (11.5 feet), Weight: ~2,000 kg (4,400 lbs) Late Cretaceous (~70 Mya), North America
Alioramus altai – Length: ~5 meters (16.4 feet), Height: ~2 meters (6.6 feet), Weight: ~500 kg (1,100 lbs) Late Cretaceous (~70 Mya), Mongolia
Daspletosaurus horneri – Length: ~9 meters (30 feet), Height: ~3 meters (10 feet), Weight: ~3,800 kg (8,400 lbs) Late Cretaceous (~75 Mya), North America
Tarbosaurus bataar – Length: ~12 meters (39 feet), Height: ~3.5 meters (11.5 feet), Weight: ~5,000 kg (11,000 lbs) Late Cretaceous (~70 Mya), Mongolia
Tyrannosaurus Rex – Length: ~14.50 meters (47.6 feet), Height: ~6 meters (19.7 feet), Weight: ~8,000–9,000 kg (17,600–19,800 lbs) Late Cretaceous (~66 Mya), North America

Would you like further details on any of these?

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

Suborder: Sauropodomorpha

Infraorder: Prosauropoda

Family: Herrerasauridae

Herrerasaurus ischigualastensis – Length: ~6 meters (20 feet), Height: ~1.5 meters (5 feet), Weight: ~250 kg (550 lbs) Late Triassic (~230 Mya), Argentina
Sanjuansaurus gordilloi – Length: ~3 meters (10 feet), Height: ~1 meter (3.3 feet), Weight: ~70 kg (154 lbs) Late Triassic (~230 Mya), Argentina
Smurfette (La Schtroumpfette) – [User envisions Smurfette evolving from a Prosauropoda, but specific dimensions are unknown] Fictional character inspired by the Smurfs, potentially for creative and narrative use, but not a real dinosaur
Staurikosaurus pricei – Length: ~2.25 meters (7.4 feet), Height: ~0.75 meters (2.5 feet), Weight: ~30 kg (66 lbs) Early Triassic (~225 Mya), Brazil

Family: Anchisauridae

Anchisaurus polyzelus – Length: ~2.4 meters (8 feet), Height: ~1 meter (3.3 feet), Weight: ~30 kg (66 lbs) Early Jurassic (~200 Mya), North America
Efraasia minor – Length: ~6 meters (20 feet), Height: ~2 meters (6.6 feet), Weight: ~500 kg (1,100 lbs) Late Triassic (~215 Mya), Germany
Thecodontosaurus antiquus – Length: ~2 meters (6.6 feet), Height: ~1 meter (3.3 feet), Weight: ~25 kg (55 lbs) Late Triassic (~210 Mya), England

Family: Plateosauridae

Massospondylus kaalae – Length: ~4 meters (13 feet), Height: ~1.5 meters (5 feet), Weight: ~200 kg (440 lbs) Early Jurassic (~200 Mya), South Africa
Mussaurus patagonicus – Length: ~6 meters (20 feet), Height: ~2 meters (6.6 feet), Weight: ~1,000 kg (2,200 lbs) Late Triassic (~210 Mya), Argentina
Plateosaurus gracilis – Length: ~6 meters (20 feet), Height: ~2 meters (6.6 feet), Weight: ~600 kg (1,300 lbs) Late Triassic (~210 Mya), Europe

Family: Melanorosauridae

Riojasaurus incertus – Length: ~10 meters (33 feet), Height: ~3 meters (10 feet), Weight: ~3,000 kg (6,600 lbs) Late Triassic (~210 Mya), Argentina

Infraorder: Sauropoda

Family: Cetiosauridae

Barapasaurus tagorei – Length: ~14 meters (46 feet), Height: ~4 meters (13 feet), Weight: ~8,000 kg (17,600 lbs) Early Jurassic (~200 Mya), India
Cetiosaurus oxoniensis – Length: ~15 meters (49 feet), Height: ~4.5 meters (15 feet), Weight: ~10,000 kg (22,000 lbs) Early Jurassic (~170 Mya), England

Family: Brachiosauridae

Brachiosaurus altithorax – Length: ~25 meters (82 feet), Height: ~16 meters (52.5 feet), Weight: ~56,000 kg (123,000 lbs) Late Jurassic (~154 Mya), North America, Asia
Sauroposeidon proteles – Length: ~34 meters (112 feet), Height: ~18 meters (59 feet), Weight: ~60,000 kg (132,000 lbs) Early Cretaceous (~110 Mya), North America

Family: Camarasauridae

Camarasaurus supremus – Length: ~23 meters (75 feet), Height: ~9 meters (29.5 feet), Weight: ~47,000 kg (103,600 lbs) Late Jurassic (~150 Mya), North America
Euhelopus zdanskyi – Length: ~15 meters (49 feet), Height: ~5 meters (16.4 feet), Weight: ~15,000 kg (33,000 lbs) Early Cretaceous (~125 Mya), China
Opisthocoelicaudia skarzynskii – Length: ~12 meters (39 feet), Height: ~4 meters (13 feet), Weight: ~10,000 kg (22,000 lbs) Late Cretaceous (~75 Mya), Mongolia

Family: Diplodocidae

Apatosaurus ajax – Length: ~27 meters (88.6 feet), Height: ~6 meters (19.7 feet), Weight: ~20,000 kg (44,000 lbs) Late Jurassic (~150 Mya), North America
Dicraeosaurus sattleri – Length: ~12 meters (39 feet), Height: ~3 meters (10 feet), Weight: ~4,000 kg (8,800 lbs) Late Jurassic (~150 Mya), Tanzania
Diplodocus hallorum – Length: ~33 meters (108 feet), Height: ~4.6 meters (15 feet), Weight: ~25,000 kg (55,000 lbs) Late Jurassic (~150 Mya), North America
Mamenchisaurus sinocanadorum – Length: ~35 meters (115 feet), Height: ~7 meters (23 feet), Weight: ~50,000 kg (110,000 lbs) Late Jurassic (~150 Mya), China
Supersaurus vivianae – Length: ~39–42 meters (128–138 feet), Height: ~21.5 meters (70.5 feet), Weight: ~50,000 kg (110,000 lbs) Late Jurassic (~150 Mya), North America

Family: Titanosauridae

Alamosaurus sanjuanensis – Length: ~30 meters (98 feet), Height: ~18.7 meters (61.4 feet), Weight: ~30,000 kg (66,000 lbs) Late Cretaceous (~70 Mya), North America
Dreadnoughtus schrani – Length: ~26 meters (85 feet), Height: ~15.82 meters (51.9 feet), Weight: ~65,000 kg (143,000 lbs) Late Cretaceous (~77 Mya), South America
Saltasaurus loricatus – Length: ~12 meters (39 feet), Height: ~4 meters (13 feet), Weight: ~7,000 kg (15,400 lbs) Late Cretaceous (~80 Mya), South America

Would you like additional details or comparisons on any species?

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

Suborder: Cerapoda

Infraorder: Ornithopoda

Family: Fabrosauridae

Lesothosaurus diagnosticus – Length: ~1.2 meters (4 feet), Height: ~0.3 meters (1 foot), Weight: ~1–2 kg (2–4 lbs) Early Jurassic (~200 Mya), Lesotho
Scutellosaurus lawleri – Length: ~2 meters (6.6 feet), Height: ~0.6 meters (2 feet), Weight: ~10 kg (22 lbs) Early Jurassic (~200 Mya), North America

Family: Heterodontosauridae

Echinodon becklesii – Length: ~1 meter (3.3 feet), Height: ~0.3 meters (1 foot), Weight: ~1 kg (2.2 lbs) Early Jurassic (~200 Mya), United Kingdom
Heterodontosaurus tucki – Length: ~1.5 meters (5 feet), Height: ~0.5 meters (1.6 feet), Weight: ~3–4 kg (6.6–8.8 lbs) Early Jurassic (~190 Mya), South Africa
Pisanosaurus mertii – Length: ~1 meter (3.3 feet), Height: ~0.3 meters (1 foot), Weight: ~2 kg (4.4 lbs) Late Triassic (~210 Mya), Argentina

Family: Hypsilophodontidae

Callovosaurus leedsi – Length: ~3 meters (9.8 feet), Height: ~1 meter (3.3 feet), Weight: ~25 kg (55 lbs) Middle Jurassic (~165 Mya), United Kingdom
Dryosaurus elderae – Length: ~3 meters (10 feet), Height: ~1 meter (3.3 feet), Weight: ~30 kg (66 lbs) Late Jurassic (~150 Mya), North America
Hypsilophodon foxii – Length: ~2 meters (6.6 feet), Height: ~0.7 meters (2.3 feet), Weight: ~10–15 kg (22–33 lbs) Early Cretaceous (~130 Mya), United Kingdom
Nanosaurus agilis – Length: ~1 meter (3.3 feet), Height: ~0.3 meters (1 foot), Weight: ~1–2 kg (2.2–4.4 lbs) Late Jurassic (~150 Mya), North America
Parksosaurus warreni – Length: ~2 meters (6.6 feet), Height: ~0.7 meters (2.3 feet), Weight: ~10 kg (22 lbs) Late Jurassic (~150 Mya), North America
Thescelosaurus garbanii – Length: ~2 meters (6.6 feet), Height: ~0.7 meters (2.3 feet), Weight: ~15 kg (33 lbs) Late Cretaceous (~70 Mya), North America

Family: Iguanodontidae

Camptosaurus dispar – Length: ~5 meters (16.4 feet), Height: ~2 meters (6.6 feet), Weight: ~600 kg (1,300 lbs) Late Jurassic (~150 Mya), North America
Iguanodon bernissartensis – Length: ~11.96 meters (39.2 feet), Height: ~4.26 meters (14 feet), Weight: ~3,500–5,000 kg (7,700–11,000 lbs) Early Cretaceous (~130 Mya), Belgium
Mantellisaurus atherfieldensis – Length: ~5 meters (16.4 feet), Height: ~2 meters (6.6 feet), Weight: ~500–600 kg (1,100–1,300 lbs) Early Cretaceous (~130 Mya), United Kingdom
Muttaburrasaurus langdoni – Length: ~7 meters (23 feet), Height: ~2 meters (6.6 feet), Weight: ~500–1,000 kg (1,100–2,200 lbs) Early Cretaceous (~110 Mya), Australia
Ouranosaurus nigeriensis – Length: ~7 meters (23 feet), Height: ~2.5 meters (8.2 feet), Weight: ~1,000–2,000 kg (2,200–4,400 lbs) Early Cretaceous (~120 Mya), Niger
Probactrosaurus gobiensis – Length: ~4 meters (13 feet), Height: ~1.5 meters (5 feet), Weight: ~300 kg (660 lbs) Late Cretaceous (~85 Mya), China
Tenontosaurus dossi – Length: ~5 meters (16.4 feet), Height: ~1.5 meters (5 feet), Weight: ~500 kg (1,100 lbs) Early Cretaceous (~130 Mya), North America

Family: Hadrosauridae

Bactrosaurus johnsoni – Length: ~7 meters (23 feet), Height: ~2 meters (6.6 feet), Weight: ~1,000–2,000 kg (2,200–4,400 lbs) Early Cretaceous (~125 Mya), China
Corythosaurus casuarius – Length: ~9 meters (30 feet), Height: ~3 meters (10 feet), Weight: ~4,000 kg (8,800 lbs) Late Cretaceous (~75 Mya), North America
Edmontosaurus regalis – Length: ~12 meters (39 feet), Height: ~4 meters (13 feet), Weight: ~3,500–4,000 kg (7,700–8,800 lbs) Late Cretaceous (~70 Mya), North America
Hadrosaurus foulkii – Length: ~9 meters (30 feet), Height: ~3 meters (10 feet), Weight: ~2,500–3,000 kg (5,500–6,600 lbs) Late Cretaceous (~75 Mya), North America
Hypacrosaurus stebingeri – Length: ~9 meters (30 feet), Height: ~3 meters (10 feet), Weight: ~2,000 kg (4,400 lbs) Late Cretaceous (~75 Mya), North America
Kritosaurus navajovius – Length: ~9 meters (30 feet), Height: ~3 meters (10 feet), Weight: ~3,000 kg (6,600 lbs) Late Cretaceous (~75 Mya), North America
Lambeosaurus magnicristatus – Length: ~9 meters (30 feet), Height: ~3 meters (10 feet), Weight: ~4,000 kg (8,800 lbs) Late Cretaceous (~75 Mya), North America
Maiasaura peeblesorum – Length: ~9 meters (30 feet), Height: ~3 meters (10 feet), Weight: ~2,500–3,000 kg (5,500–6,600 lbs) Late Cretaceous (~75 Mya), North America
Olorotitan arharensis – Length: ~8 meters (26 feet), Height: ~2.5 meters (8.2 feet), Weight: ~1,500 kg (3,300 lbs) Late Cretaceous (~70 Mya), Russia
Parasaurolophus walkeri – Length: ~10 meters (33 feet), Height: ~3.5 meters (11.5 feet), Weight: ~2,500 kg (5,500 lbs) Late Cretaceous (~75 Mya), North America
Prosaurolophus maximus – Length: ~9 meters (30 feet), Height: ~3 meters (10 feet), Weight: ~2,000 kg (4,400 lbs) Late Cretaceous (~75 Mya), North America
Saurolophus osborni – Length: ~10 meters (33 feet), Height: ~3 meters (10 feet), Weight: ~3,000 kg (6,600 lbs) Late Cretaceous (~75 Mya), North America, Asia
Shantungosaurus giganteus – Length: ~15 meters (49 feet), Height: ~5 meters (16.4 feet), Weight: ~8,000–10,000 kg (17,600–22,000 lbs) Late Cretaceous (~70 Mya), China
Tsintaosaurus spinorhinus – Length: ~8 meters (26 feet), Height: ~2.5 meters (8.2 feet), Weight: ~1,000–2,000 kg (2,200–4,400 lbs) Late Cretaceous (~70 Mya), China

Infraorder: Ceratopia

Family: Pachycephalosauridae

Homalocephale calathocercos – Length: ~2 meters (6.6 feet), Height: ~0.6 meters (2 feet), Weight: ~50–70 kg (110–154 lbs) Late Cretaceous (~75 Mya), North America
Pachycephalosaurus wyomingensis – Length: ~5 meters (16.4 feet), Height: ~1.5 meters (5 feet), Weight: ~450–500 kg (990–1,100 lbs) Late Cretaceous (~75 Mya), North America
Prenocephale prenes – Length: ~4 meters (13 feet), Height: ~1 meter (3.3 feet), Weight: ~100 kg (220 lbs) Late Cretaceous (~75 Mya), North America
Stegoceras validum – Length: ~3 meters (10 feet), Height: ~1 meter (3.3 feet), Weight: ~100–150 kg (220–330 lbs) Late Cretaceous (~75 Mya), North America

Family: Psittacosauridae

Psittacosaurus meileyingensis – Length: ~2 meters (6.6 feet), Height: ~0.5 meters (1.6 feet), Weight: ~2–3 kg (4.4–6.6 lbs) Early Cretaceous (~125 Mya), China

Family: Protoceratopidae

Bagaceratops rozhdestvenskyi – Length: ~2 meters (6.6 feet), Height: ~0.6 meters (2 feet), Weight: ~20–30 kg (44–66 lbs) Late Cretaceous (~70 Mya), Mongolia
Leptoceratops gracilis – Length: ~2 meters (6.6 feet), Height: ~0.6 meters (2 feet), Weight: ~30 kg (66 lbs) Late Cretaceous (~70 Mya), North America
Microceratus gobiensis – Length: ~1 meter (3.3 feet), Height: ~0.3 meters (1 foot), Weight: ~1–2 kg (2.2–4.4 lbs) Late Cretaceous (~70 Mya), Mongolia
Montanoceratops cerorhynchus – Length: ~2 meters (6.6 feet), Height: ~0.6 meters (2 feet), Weight: ~30 kg (66 lbs) Late Cretaceous (~70 Mya), North America
Protoceratops hellenikorhinus – Length: ~2 meters (6.6 feet), Height: ~0.6 meters (2 feet), Weight: ~20–30 kg (44–66 lbs) Late Cretaceous (~75 Mya), Mongolia

Family: Ceratopidae

Anchiceratops ornatus – Length: ~4 meters (13 feet), Height: ~1.5 meters (5 feet), Weight: ~1,000 kg (2,200 lbs) Late Cretaceous (~75 Mya), North America
Arrhinoceratops brachyops – Length: ~4 meters (13 feet), Height: ~1.5 meters (5 feet), Weight: ~1,000 kg (2,200 lbs) Late Cretaceous (~75 Mya), North America
Centrosaurus apertus – Length: ~6 meters (20 feet), Height: ~2 meters (6.6 feet), Weight: ~2,000 kg (4,400 lbs) Late Cretaceous (~75 Mya), North America
Chasmosaurus belli – Length: ~5–6 meters (16–20 feet), Height: ~2 meters (6.6 feet), Weight: ~2,000–2,500 kg (4,400–5,500 lbs) Late Cretaceous (~75 Mya), North America
Nasutoceratops titusi – Length: ~5 meters (16.4 feet), Height: ~2 meters (6.6 feet), Weight: ~1,000–1,500 kg (2,200–3,300 lbs) Late Cretaceous (~75 Mya), North America
Pachyrhinosaurus lakustai – Length: ~8.2 meters (26.3 feet), Height: ~4.10 meters ((13.5 feet), Weight: ~2,000 kg (4,400 lbs) Late Cretaceous (~75 Mya), North America
Pentaceratops sternbergii – Length: ~7 meters (23 feet), Height: ~5.16 meters (16.9 feet), Weight: ~3,000–4,000 kg (6,600–8,800 lbs) Late Cretaceous (~75 Mya), North America
Styracosaurus ovatus – Length: ~5 meters (16.4 feet), Height: ~2 meters (6.6 feet), Weight: ~2,000 kg (4,400 lbs) Late Cretaceous (~75 Mya), North America
Torosaurus latus – Length: ~7 meters (23 feet), Height: ~3 meters (10 feet), Weight: ~5,000 kg (11,000 lbs) Late Cretaceous (~75 Mya), North America
Triceratops horridus – Length: ~8 meters (26 feet), Height: ~3 meters (10 feet), Weight: ~6,000–12,000 kg (13,200–26,400 lbs) Late Cretaceous (~70 Mya), North America

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

Here are the estimated sizes for the species in Thyreophora:

Suborder: Thyreophora

Infraorder: Stegosauria

Family: Huayangosauridae

Huayangosaurus taibaii – Length: ~4 meters (13 feet), Height: ~1.5 meters (5 feet), Weight: ~1,000–1,500 kg (2,200–3,300 lbs) Middle Jurassic (~165 Mya), China
Tuojiangosaurus multispinus – Length: ~7 meters (23 feet), Height: ~2 meters (6.6 feet), Weight: ~2,000–3,000 kg (4,400–6,600 lbs) Late Jurassic (~160 Mya), China

Family: Stegosauridae

Kentrosaurus aethiopicus – Length: ~4 meters (13 feet), Height: ~1.5 meters (5 feet), Weight: ~500–600 kg (1,100–1,300 lbs) Late Jurassic (~155 Mya), Tanzania
Stegosaurus stenops – Length: ~9 meters (30 feet), Height: ~4 meters (13 feet), Weight: ~2,000–3,000 kg (4,400–6,600 lbs) Late Jurassic (~150 Mya), North America
Wuerhosaurus ordosensis – Length: ~6 meters (20 feet), Height: ~2 meters (6.6 feet), Weight: ~1,000–1,500 kg (2,200–3,300 lbs) Early Cretaceous (~120 Mya), China

Infraorder: Ankylosauria

Family: Scelidosauridae

Scelidosaurus harrisonii – Length: ~4 meters (13 feet), Height: ~1 meter (3.3 feet), Weight: ~500–600 kg (1,100–1,300 lbs) Early Jurassic (~200 Mya), United Kingdom

Family: Nodosauridae

Hylaeosaurus armatus – Length: ~4 meters (13 feet), Height: ~1.5 meters (5 feet), Weight: ~1,000–1,500 kg (2,200–3,300 lbs) Early Cretaceous (~130 Mya), United Kingdom
Panoplosaurus mirus – Length: ~5 meters (16.4 feet), Height: ~1.5 meters (5 feet), Weight: ~2,000–3,000 kg (4,400–6,600 lbs) Late Cretaceous (~75 Mya), North America
Nodosaurus textilis – Length: ~4 meters (13 feet), Height: ~1.5 meters (5 feet), Weight: ~1,500–2,000 kg (3,300–4,400 lbs) Late Cretaceous (~75 Mya), North America
Polacanthus foxii – Length: ~5 meters (16.4 feet), Height: ~1.5 meters (5 feet), Weight: ~2,000–3,000 kg (4,400–6,600 lbs) Early Cretaceous (~130 Mya), United Kingdom
Sauropelta edwardsorum – Length: ~5 meters (16.4 feet), Height: ~1 meter (3.3 feet), Weight: ~1,000–1,500 kg (2,200–3,300 lbs) Early Cretaceous (~125 Mya), North America
Silvisaurus condrayi – Length: ~4 meters (13 feet), Height: ~1.5 meters (5 feet), Weight: ~1,000 kg (2,200 lbs) Early Cretaceous (~125 Mya), North America
Struthiosaurus transylvanicus – Length: ~3 meters (9.8 feet), Height: ~1 meter (3.3 feet), Weight: ~300–400 kg (660–880 lbs) Late Cretaceous (~70 Mya), Europe

Family: Ankylosauridae

Ankylosaurus magniventris – Length: ~9.6 meters (31.5 feet), Height: ~3.6 meters (11.8 feet), Weight: ~6,000–8,000 kg (13,200–17,600 lbs) Late Cretaceous (~68 Mya), North America
Euoplocephalus tutus – Length: ~6 meters (20 feet), Height: ~1.5 meters (5 feet), Weight: ~3,000–4,000 kg (6,600–8,800 lbs) Late Cretaceous (~75 Mya), North America
Saichania chulsanensis – Length: ~6 meters (20 feet), Height: ~2 meters (6.6 feet), Weight: ~2,500–3,000 kg (5,500–6,600 lbs) Late Cretaceous (~75 Mya), Mongolia
Talarurus plicatospineus – Length: ~5 meters (16.4 feet), Height: ~1.5 meters (5 feet), Weight: ~2,000–3,000 kg (4,400–6,600 lbs) Late Cretaceous (~75 Mya), Mongolia

Let me know if you need more information on any of these species!

Chart Tables Classification Meaning Height Length Weight Epoch Stage Years Area Country Region Formation

Name Meaning Age / Time Size (Length) Weight Author Where Found Zoey & Dawn's Comments

Archelon ischyros Mighty Ruling Turtle Late Cretaceous 4.6 m (15 ft) 2.2 tons Wieland (1896) North America Dawn: "It's like a giant Tirtouga! I bet its shell would sparkle under the stage lights!"

Zoey: "The size of those flippers is impressive. It would have a huge presence in the water."

Elasmosaurus platyurus Flat-tailed Plate Lizard Late Cretaceous 14 m (46 ft) 2 tons Cope (1868) North America Dawn: "That neck is even longer than a Gigantamax Lapras! How does it not get tangled?"

Zoey: "It uses that neck for precision strikes. Very graceful, like a Milotic's Aqua Tail."

Ichthyosaurus conybeari Conybeare's Fish Lizard Early Jurassic 2 m (6.6 ft) 90 kg Lydekker (1888) Europe Dawn: "It’s so cute and sleek, just like a Buizel! We could do amazing synchronized spins."

Zoey: "Speed is its best asset. It’s built for fast-paced appeals and quick pivots."

Jormungandr walhallaensis Midgard Serpent of Walhalla Late Cretaceous 7 m (23 ft) 1-2 tons Madsia et al. (2023) North America Dawn: "Named after a giant serpent? No need to worry, it’s just a big, scary-looking friend!"

Zoey: "It’s a transitional mosasaur. That unique look would definitely earn points for 'originality'."

Kronosaurus queenslandicus Kronos Lizard Early Cretaceous 9-10 m (33 ft) 7-10 tons Longman (1924) Australia Dawn: "Yikes! Those teeth are bigger than a Huntail’s! I’m staying on the shore for this one."

Zoey: "It’s a powerhouse. Sometimes a simple, strong performance is all you need to win."

Liopleurodon ferox Smooth-sided Teeth Middle Jurassic 5-7 m (23 ft) 1.5 tons Sauvage (1873) Europe Dawn: "It looks so tough! I wonder if it could learn Ice Beam to make a frozen stage?"

Zoey: "It’s an ambush predator. The way it moves silently would make for a dramatic entrance."

Mosasaurus beaugei Beauge's Meuse Lizard Late Cretaceous 8-40 m (130 ft) 150 tons Arambourg (1952) Morocco Dawn: "A giant sea lizard! It reminds me of a Feraligatr that decided to become a mermaid."

Zoey: "Look at that tail. It’s all about power and control—essential for any high-level Coordinator."

Plesiosaurus dolichodeirus Near Lizard / Long Neck Early Jurassic 3.5 m (11 ft) 450 kg Conybeare (1824) Europe Dawn: "The classic sea monster! It’s so elegant, it looks like it’s dancing through the waves."

Zoey: "A very balanced silhouette. It’s the kind of creature that looks good from any angle."

Tylosaurus bernardi Bernard's Knob Lizard Late Cretaceous 12-13 m (43 ft) 8 tons Dollo (1885) Europe Dawn: "It uses its nose as a ram? That's one way to make an impact, I guess! No need to worry!"

Zoey: "It’s intimidating and bold. Using that snout for a physical appeal would be a risky, but cool move."

Name Meaning Age / Time Size (Length/Wingspan) Weight Author Where Found Zoey & Dawn's Comments

Anurognathus ammoni Without Tail Jaw Late Jurassic 35 cm wingspan 40 g Döderlein (1923) Germany Dawn: "It’s so tiny! It looks like a little fluffy Woobat. I just want to give it a Poffin!"

Zoey: "Don't let the size fool you. Being small and agile is perfect for dodging attacks in a Contest Battle."

Dimorphodon macronyx Two-form Tooth Early Jurassic 1.45 m wingspan 2 kg Owen (1859) England Dawn: "That big head makes it look like a Chatot without the music note! Is it grumpy?"

Zoey: "It’s got a very unique silhouette. Using those different teeth for a 'Crunch' appeal would be high-impact."

Dorygnathus banthensis Spear Jaw Early Jurassic 1.5 m wingspan 2.5 kg Wagner (1860) Germany Dawn: "Those teeth sticking out are kind of scary! It’s like a Carvanha with wings!"

Zoey: "That's a 'Spear Jaw' for you. It’s built for snatching fish; it would look very sharp in a fast-paced appeal."

Rhamphorhynchus etchesi Etches' Beak Snout Late Jurassic 1.2 m wingspan 1-2 kg Martill et al. (2015) England Dawn: "Look at that long tail with the little diamond on the end! It’s just like a Piplup's... well, sort of!"

Zoey: "That tail acts like a rudder. It would be incredibly graceful during an aerial dance over a water stage."

Scaphognathus crassirostris Tub Jaw Late Jurassic 0.9 m wingspan 1 kg Goldfuss (1831) Germany Dawn: "It looks so sturdy! No need to worry, this one looks like it could handle a Gust move no problem!"

Zoey: "The 'Tub Jaw' has a very strong, blunt beak. It would be great for a physical, 'Tackle'-style performance."

Sordes pilosus Hairy Devil Late Jurassic 0.6 m wingspan 200 g Sharov (1971) Kazakhstan Dawn: "Hairy? But it’s a reptile! It looks like it’s wearing a cozy little coat made by my mom!"

Zoey: "Those 'hairs' are actually pycnofibers. It proves that even tough reptiles can have a soft, beautiful side for the stage."

Name Meaning Age / Time Size (Wingspan) Weight Author Where Found Zoey & Dawn's Comments

Arthurdactylus conandoylei Arthur's Finger Early Cretaceous 4.6 m (15 ft) 15 kg (33 lb) Frey & Martill (1994) Brazil Dawn: "Named after the writer of The Lost World? That's so cool! It's like a real-life legend!"

Zoey: "Check out those extra-long wing fingers. They’d be perfect for highlighting sharp, dramatic poses during an aerial appeal."

Cearadactylus atrox Ceara's Lethal Finger Early Cretaceous 4–5.5 m (13–18 ft) 15 kg (33 lb) Leonardi & Borgomanero (1985) Brazil Dawn: "Look at those interlocking teeth! It looks like it could snatch a Magikarp right out of the water!"

Zoey: "That kinked jaw is a specialized tool. In a Contest, showing off a unique feature like that is a guaranteed point-getter."

Ctenochasma elegans Elegant Comb Jaw Late Jurassic 0.25–1.9 m (0.8–6.2 ft) 0.5–2 kg von Meyer (1852) Germany Dawn: "It has hundreds of tiny needle teeth! It's like a built-in glitter brush for the ocean!"

Zoey: "It’s a filter feeder, very refined. It would look very graceful 'skimming' the surface of a water-type stage."

Dsungaripterus weii Junggar Wing Early Cretaceous 3–3.5 m (10–11.5 ft) 10–15 kg Young (1964) China Dawn: "Its beak looks like a pair of fancy tweezers! Perfect for picking out the best berries—or Poffins!"

Zoey: "That upward curve isn't just for show; it's for crushing shells. It’s got a 'tough' appeal masked by a 'cool' look."

Ornithocheirus simus Snub-nosed Bird Hand Early Cretaceous 6 m (20 ft) 20–30 kg Seeley (1869) England Dawn: "Wow, it’s huge! It looks like a giant, flying version of a Feraligatr!"

Zoey: "Those crests on the end of its beak are classic. It’s a seasoned performer that knows how to command the whole arena."

Pterodaustro guinazui Southern Wing Early Cretaceous 2.5 m (8.2 ft) 2-3 kg Bonaparte (1970) Argentina Dawn: "It looks like a flamingo pterosaur! If I used it, we'd definitely use pink sparkles for every move."

Zoey: "Thousands of bristle-teeth used for filtering. It’s the ultimate example of a 'Beauty' category contender."

Pteranodon sternbergi Sternberg's Wingless Tooth Late Cretaceous 6 m (20 ft) 20–35 kg Harksen (1966) USA Dawn: "That huge crest on its head is so stylish! It’s like it’s wearing a crown for the Grand Festival!"

Zoey: "It’s a classic silhouette. That crest helps with balance—both in flight and in a high-stakes performance."

Quetzalcoatlus lawsoni Lawson's Feathered Serpent Late Cretaceous 4.5–25 m (15–82 ft) 20 kg Lawson (1975) USA Dawn: "A smaller cousin of the biggest flyer ever? No need to worry, it’s still plenty big to me!"

Zoey: "Even at this size, its long neck and beak are striking. It’s all about elegant lines and a commanding presence on stage."

Name Meaning Age / Time Size (Length) Weight Author Where Found Zoey & Dawn's Comments

Aristosuchus pusillus Tiny Best Crocodile Early Cretaceous 2 m (6.6 ft) 30 kg Seeley (1876) England Dawn: "It’s so small and nimble! It reminds me of a little Totodile that decided to go on a diet!"

Zoey: "Speed and precision. It’s got that 'Aristo' name because it carries itself with a certain class."

Coelophysis bauri Baur's Hollow Form Late Triassic 3 m (10 ft) 15-20 kg Cope (1889) USA (New Mexico) Dawn: "It’s so skinny! No need to worry, I’ll make it enough Poffins to fill it right up!"

Zoey: "A classic slender build. It would be perfect for an 'Agility' appeal, weaving through obstacles."

Coelurus fragilis Fragile Hollow Tail Late Jurassic 2.4 m (8 ft) 13-20 kg Marsh (1879) USA (Wyoming) Dawn: "Fragile? It looks pretty tough to me! Like a Scraggy that’s ready for a scrap."

Zoey: "Lightweight bones mean it can jump high. Imagine it using 'Bounce' to start an appeal!"

Compsognathus longipes Elegant Long Foot Late Jurassic 1.25 m (4 ft) 2.5 kg Wagner (1859) Germany/France Dawn: "It’s so tiny and cute! It could ride right on my shoulder like a Pachirisu!"

Zoey: "The name says it all—'elegant.' It’s the gold standard for small, beautiful theropods."

Moros intrepidus Intrepid Doom Late Cretaceous 2.5 m (8 ft) 78 kg Zanno et al. (2019) USA (Utah) Dawn: "Intrepid Doom? That sounds like a Dark-type move! But it’s actually kind of bite-sized."

Zoey: "A tiny ancestor to the big Tyrants. It’s got a fierce gaze that would score high in a 'Cool' contest."

Nanotyrannus lethaeus Deathly Dwarf Tyrant Late Cretaceous 5 m (16 ft) 450-600 kg Bakker et al. (1988) USA (Montana) Dawn: "A mini T-Rex? It’s like a middle evolution, not quite a pup but not a big boss yet!"

Zoey: "Whether it’s a separate species or a juvenile, that speed and power combo is a real crowd-pleaser."

Ornitholestes hermanni Hermann's Bird Robber Late Jurassic 2 m (6.6 ft) 12-15 kg Osborn (1903) USA (Wyoming) Dawn: "A bird robber? It must be really fast at grabbing things, like a sneaky Aipom!"

Zoey: "Look at those hands. It’s built for grasping, which could make for some really creative prop work on stage."

Proceratosaurus bradleyi Bradley's Before Horned Lizard Middle Jurassic 3 m (10 ft) 35 kg von Huene (1926) England Dawn: "It has a tiny little horn on its nose! It’s like a prehistoric Rhydon in training!"

Zoey: "That crest is an early fashion statement. It shows that being a 'Cool' type runs in the family tree."

Procompsognathus triassicus Triassic Before Elegant Jaw Late Triassic 1 m (3.3 ft) 1 kg Fraas (1913) Germany Dawn: "Even smaller than Compy? It’s practically a starter Pokémon! No need to worry, little guy!"

Zoey: "Don't let the size fool you. In the Triassic, this was a top-tier 'Cute' contender with a bite."

Saltopus elginensis Elgin's Leaping Foot Late Triassic 0.6 m (2 ft) 1 kg Huene (1910) Scotland Dawn: "Leaping foot? It must have amazing jumps! We could do a 'High Jump Kick' appeal together!"

Zoey: "It’s one of the oldest relatives on the list. Sometimes the original classics have the best rhythm."

Segisaurus halli Hall's Segi Canyon Lizard Early Jurassic 1 m (3.3 ft) 4-7 kg Camp (1936) USA (Arizona) Dawn: "It has solid bones like a Rock-type! It looks like it could take a hit and keep on dancing."

Zoey: "Finding a dinosaur in a canyon is a great story. A Coordinator with a good story always captures the judges' hearts."

Name Meaning Age / Time Size (Length) Weight Author Where Found Zoey & Dawn's Comments

Deinocheirus mirificus Unusual Terrible Hand Late Cretaceous 11 m (36 ft) 6.4 tons Osmólska & Roniewicz (1970) Mongolia Dawn: "Look at those giant arms! It's like a mix between a Snorlax and a Blaziken. No need to worry, it looks like a big softie!"

Zoey: "Those claws are for show, but that hump adds a unique silhouette. It's a 'Tough' category winner for sure."

Dromiceiomimus samueli Samuel's Emu Mimic Late Cretaceous 3.5 m (11.5 ft) 100-150 kg Russell (1972) Canada Dawn: "It’s so leggy! It reminds me of a Doduo without the second head. I bet it can outrun a Rapidash!"

Zoey: "Speed and grace. A Coordinator could use its sprinting ability to create a whirlwind of sparkles on stage."

Gallimimus bullatus Chicken Mimic Late Cretaceous 6 m (20 ft) 440 kg Osmólska et al. (1972) Mongolia Dawn: "A giant chicken? That’s a lot of feathers to groom for a Contest! But it looks so fast!"

Zoey: "It’s built for flocking. Imagine a group of these performing a synchronized 'Double Team'—the judges would love it."

Ornithomimus velox Swift Bird Mimic Late Cretaceous 3.8 m (12.5 ft) 170 kg Marsh (1890) USA / Canada Dawn: "It’s so sleek! It looks like it’s wearing a racing suit. We could do an 'Extreme Speed' appeal!"

Zoey: "It’s the quintessential runner. Its simple, clean lines make it a great canvas for creative accessory use."

Oviraptor philoceratops Egg Thief Lover of Ceratopsians Late Cretaceous 1.6 m (5.2 ft) 35 kg Osborn (1924) Mongolia Dawn: "An egg thief? Hey! That’s not nice! But wait... it was actually just protecting its own nest? That's so sweet!"

Zoey: "It has a very theatrical crest. A move like 'Sky Attack' would look amazing with those feathers catching the light."

Struthiomimus altus Tall Ostrich Mimic Late Cretaceous 4 m (13 ft) 150 kg Lambe (1902) Canada Dawn: "It’s so tall and elegant! It’s like a supermodel dinosaur. No need to worry about it tripping on those long legs!"

Zoey: "Very balanced proportions. It carries itself with the poise of a professional Coordinator."

Name Meaning Age / Time Size (Length) Weight Author Where Found Zoey & Dawn's Comments

Archaeopteryx albersdoerferi Albersdörfer’s Ancient Wing Late Jurassic 0.5 m (1.6 ft) 0.5-1 kg Kundrát et al. (2018) Germany Dawn: "It’s the very first bird! It's so tiny and feathered, it’s like a prehistoric Pidgey!"

Zoey: "A true original. That mix of reptile and bird features makes for a very versatile 'Beauty' appeal."

Avimimus nemegtensis Nemegt Bird Mimic Late Cretaceous 1.5 m (5 ft) 15 kg Kurzanov (1981) Mongolia Dawn: "It’s so fluffy! It looks like a tall Altaria but without the cloud-wings. No need to worry about it being cold!"

Zoey: "It has very bird-like legs. I can see it performing a complex 'Feather Dance' to dazzle the audience."

Chirostenotes pergracilis Very Slender Narrow Hand Late Cretaceous 2.5 m (8.2 ft) 50 kg Gilmore (1924) Canada Dawn: "Those fingers are so long! It looks like it could play a harp or help me style my hair!"

Zoey: "Graceful and lithe. It’s got that high-fashion look that really pops during the safe-holding 'Appeal' round."

Elmisaurus rarus Rare Foot Lizard Late Cretaceous 1.7 m (5.5 ft) 25 kg Osmólska (1981) Mongolia Dawn: "A rare find? It’s like spotting a Shiny Pokémon! It’s small, but it looks like it has a lot of spirit."

Zoey: "The foot structure is unique even for an oviraptorosaur. It’s all about those specialized details for the judges."

Erlikosaurus andrewsi Erlik's Lizard (God of the Dead) Late Cretaceous 4.5 m (15 ft) 500 kg Perle (1980) Mongolia Dawn: "A god of the dead? That's spooky! But look at that beak—it looks like it just wants to eat some grass."

Zoey: "It’s a Therizinosaur with a skull! That's a rare treat. Its elegant neck would be perfect for a 'Swords Dance' pose."

Segnosaurus galbinensis Slow Lizard from Galbin Late Cretaceous 6 m (20 ft) 1.3 tons Perle (1979) Mongolia Dawn: "It might be called 'slow,' but it looks like it has a lot of power! Like a Slaking that actually moves!"

Zoey: "Patience is a virtue in Contests. A slow, methodical performance can be just as captivating as a fast one."

Therizinosaurus cheloniformis Scythe Lizard / Turtle Form Late Cretaceous 10 m (33 ft) 5 tons Maleev (1954) Mongolia Dawn: "AH! Those claws are huge! They're longer than my whole arm! No need to worry... as long as it's friendly!"

Zoey: "The ultimate 'Tough' contender. Those three-foot claws are built for a dramatic 'Slash' finish that would leave the crowd speechless."

Name Meaning Age / Time Size (Length) Weight Author Where Found Zoey & Dawn's Comments

Adasaurus mongoliensis Ada's Lizard (Evil Spirit) Late Cretaceous 1.8 m (6 ft) 15 kg Barsbold (1983) Mongolia Dawn: "An evil spirit? It looks too cool for that! Like a Sneasel ready for a battle!"

Zoey: "The smaller toe claws make it unique. It’s all about those subtle differences in a high-level Contest."

Bambiraptor feinbergi Bambi Thief Late Cretaceous 0.9 m (3 ft) 2 kg Burnham et al. (2000) USA (Montana) Dawn: "Bambi! It’s so tiny and precious! I bet it would love to play with a Buneary."

Zoey: "It’s incredibly bird-like. A 'Feather Dance' combined with its natural agility would be a perfect 10."

Dakotaraptor steini Dakota Thief Late Cretaceous 5.5 m (18 ft) 300 kg DePalma et al. (2015) USA (South Dakota) Dawn: "Whoa! That’s a huge raptor! It’s like a Staraptor that stayed on the ground and got way bigger!"

Zoey: "Those wing feathers were huge. It could perform a 'Steel Wing' style pose even if it can't fly."

Deinonychus antirrhopus Counterbalanced Terrible Claw Early Cretaceous 3.4 m (11 ft) 75-100 kg Ostrom (1969) USA (Montana/Wyoming) Dawn: "The 'Terrible Claw'—it’s so famous! No need to worry, its tail keeps it perfectly balanced for jumps!"

Zoey: "That tail is like a gymnast's beam. It’s built for athletic appeals and mid-air pivots."

Dromaeosaurus albertensis Running Lizard from Alberta Late Cretaceous 2 m (6.6 ft) 15 kg Matthew & Brown (1922) Canada / USA Dawn: "It looks so smart! It’s probably the kind of Pokémon—I mean, dinosaur—that plans its moves ahead."

Zoey: "It has a stronger bite than most raptors. A 'Cool' appeal focusing on its powerful jaws would be very effective."

Saurornitholestes sullivani Sullivan's Lizard-Bird Robber Late Cretaceous 1.8 m (6 ft) 10 kg Sullivan (1978) USA (New Mexico) Dawn: "Another bird-robber? They sure were sneaky back then! It looks very light on its feet."

Zoey: "It has a keen sense of smell. You could incorporate that into a performance—like finding a hidden item on stage."

Saurornithoides mongoliensis Bird-like Lizard from Mongolia Late Cretaceous 2.3 m (7.5 ft) 35-45 kg Osborn (1924) Mongolia Dawn: "Look at those big eyes! It must be able to see everything, even in a Dark-type arena!"

Zoey: "Big eyes usually mean high intelligence. It would be easy to train for complex, synchronized routines."

Troodon formosus Wounding Tooth Late Cretaceous 2.4 m (8 ft) 50 kg Leidy (1856) USA / Canada Dawn: "They say it was the smartest of them all! It’s like the Alakazam of the dinosaur world!"

Zoey: "Intelligence is key for a Coordinator. A Troodon would understand exactly how to play the crowd's emotions."

Velociraptor osmolskae Osmólska’s Swift Seizer Late Cretaceous 2 m (6.6 ft) 15-20 kg Godefroit et al. (2008) China (Inner Mongolia) Dawn: "It’s smaller than the movies, but it looks way more stylish with those feathers! No need to worry, it’s beautiful!"

Zoey: "This species has a slightly different snout. It’s all about that specialized 'Quick Attack' look."

Name Meaning Age / Time Size (Length) Weight Author Where Found Zoey & Dawn's Comments

Ceratosaurus nasicornis Horned Lizard Late Jurassic 6–7 m (20–23 ft) 700 kg Marsh (1884) USA (Utah/Colorado) Dawn: "A horn on its nose and spikes down its back? It looks like a super-sized Rhydon! It’s totally 'Cool' style!"

Zoey: "That horn is a great focal point for an appeal. A 'Poison Jab' or 'Horn Drill' visual would really pop."

Dilophosaurus wetherilli Two-crested Lizard Early Jurassic 7 m (23 ft) 400 kg Welles (1954) USA (Arizona) Dawn: "Those double crests are so fancy! It’s like it’s wearing two hair clips at once. No need to worry, it’s a total trendsetter!"

Zoey: "The crests are fragile, so it’s all about the 'Beauty' of the silhouette rather than raw power."

Elaphrosaurus bambergi Lightweight Lizard Late Jurassic 6 m (20 ft) 210 kg Janensch (1920) Tanzania Dawn: "It’s so skinny for its height! It must be a really fast runner, like a prehistoric Zebstrika!"

Zoey: "Being lightweight makes it graceful. It could perform high-speed loops around a stage without breaking a sweat."

Noasaurus leali Northwestern Argentina Lizard Late Cretaceous 1.5 m (5 ft) 15 kg Bonaparte & Powell (1980) Argentina Dawn: "It’s a little guy! But wait—is that a giant claw on its finger? It’s like a tiny, feisty Zangoose!"

Zoey: "Specialized tools like that claw are perfect for a 'Shadow Claw' appeal. Small size, big impact!"

Majungasaurus crenatissimus Mahajanga Lizard Late Cretaceous 6–7 m (20–23 ft) 1.1 tons Depéret (1896) Madagascar Dawn: "It has a tiny horn right on top of its head! It looks a bit grumpy, but maybe it just needs a sweet Poffin."

Zoey: "Short, powerful legs and a stocky build make it a 'Tough' category heavyweight. It commands the stage just by standing there."

Name Meaning Age / Time Size (Length) Weight Author Where Found Zoey & Dawn's Comments

Acrocanthosaurus atokensis High-spined Lizard Early Cretaceous 11.5 m (38 ft) 6.2 tons Stovall & Langston (1950) USA (Oklahoma, Texas) Dawn: "Look at that ridge! It’s like a built-in stage decoration. I bet it would look amazing with some Glitter Powder!"

Zoey: "That high spine gives it a very intimidating silhouette. It's a 'Tough' category powerhouse."

Allosaurus europaeus Different Lizard Late Jurassic 12 m (40 ft) 1 ton Mateus et al. (2006) Portugal Dawn: "The 'Lion' of the Jurassic! It’s so sleek and fast for its size, like a big Arcanine!"

Zoey: "It’s a classic for a reason. Its balanced build makes it perfect for a versatile performance."

Altispinax dunkeri High Spine Early Cretaceous 8 m (26 ft) 1-2 tons von Huene (1923) Germany Dawn: "Another high-spined friend! It looks like it’s wearing a mohawk. No need to worry, it’s just being trendy!"

Zoey: "The mystery behind its spines adds to its 'Cool' appeal. Judges love a dinosaur with a bit of a secret."

Eustreptospondylus oxoniensis Well-curved Vertebra Middle Jurassic 6 m (20 ft) 500 kg Walker (1964) England Dawn: "It grew up on an island? It’s like a Pokémon from the Orange Islands! It probably loves the beach."

Zoey: "A medium-sized predator with great proportions. It would be very light on its feet during a battle."

Giganotosaurus carolinii Giant Southern Lizard Late Cretaceous 12-13 m (43 ft) 8 tons Coria & Salgado (1995) Argentina Dawn: "It’s even bigger than T-Rex?! No need to worry... but maybe we should run anyway!"

Zoey: "Pure power. Just the sound of its roar would be enough to earn a high score in a 'Tough' Contest."

Poekilopleuron bucklandii Varied Ribs Middle Jurassic 7 m (23 ft) 1 ton Eudes-Deslongchamps (1838) France Dawn: "It’s one of the oldest ones found! It’s like a legendary Pokémon that’s been around forever."

Zoey: "It has strong arms for a large theropod. Using those for a 'Crush Claw' appeal would be very dramatic."

Spinosaurus aegyptiacus Spine Lizard Late Cretaceous 14 m (46 ft) 7-10 tons Stromer (1915) Egypt / Morocco Dawn: "It’s a giant crocodile-dinosaur that swims! It’s like the ultimate Water-type and Dragon-type mix!"

Zoey: "That sail is the ultimate prop. Catching the light on that sail while surfacing from water would be a perfect finish."

Yangchuanosaurus zigongensis Yangchuan Lizard Late Jurassic 8 m (26 ft) 1.3 tons Gao (1993) China Dawn: "It has all those little bumps and crests on its face! It’s like it’s wearing jewelry for the Grand Festival!"

Zoey: "Those facial crests define its character. It has a very 'Regal' look that fits the 'Beauty' category."

Name Meaning Age / Time Size (Length) Weight Author Where Found Zoey & Dawn's Comments

Albertosaurus sarcophagus Alberta Lizard / Flesh Eater Late Cretaceous 9 m (30 ft) 2 tons Osborn (1905) Canada Dawn: "It’s so fast for a big guy! It’s like a super-sized Floatzel—powerful but still really quick on its feet!"

Zoey: "The crests over its eyes give it a sharp, focused look. It’s got a natural 'Cool' factor for the stage."

Alioramus altai Different Branch from Altai Late Cretaceous 5–6 m (16–20 ft) 600 kg Brusatte et al. (2009) Mongolia Dawn: "Look at all those bumps on its nose! It’s like it’s wearing a string of pearls. No need to worry, it’s very stylish!"

Zoey: "It’s the long-snouted specialist. That unique profile is great for 'Beauty' appeals that stand out from other Tyrannosaurs."

Daspletosaurus horneri Horner’s Frightful Lizard Late Cretaceous 9 m (30 ft) 2.5 tons Carr et al. (2017) USA (Montana) Dawn: "Frightful? It looks like it just wants to win a Ribbon! But those teeth are definitely intimidating."

Zoey: "It’s a heavy hitter with a very textures face. In a Contest, that rugged look scores big in the 'Tough' category."

Tarbosaurus bataar Alarming Lizard Hero Late Cretaceous 10–12 m (33–39 ft) 4–5 tons Maleev (1955) Mongolia Dawn: "A hero lizard! It’s like a giant Garchomp guarding the desert. It looks so strong!"

Zoey: "Its arms are even smaller than T-rex's, so it relies entirely on that massive jaw. It's all about the 'Hyper Beam' finish here."

Tyrannosaurus rex Tyrant Lizard King Late Cretaceous 15 m (49 ft) 8–9 tons Osborn (1905) USA / Canada Dawn: "The King! It’s like the champion of all dinosaurs! No need to worry, we’d definitely win the Ribbon with him!"

Zoey: "Total stage presence. When a T-rex walks into the arena, the Appeal is basically over—it’s the ultimate showstopper."

Name Meaning Age / Time Size (Length) Weight Author Where Found Zoey & Dawn's Comments

Herrerasaurus ischigualastensis Herrera's Lizard Late Triassic 6 m (20 ft) 350 kg Reig (1963) Argentina Dawn: "One of the very first dinosaurs! It’s like a legendary ancestor, like a Mew for the dinosaur world!"

Zoey: "It has a flexible lower jaw for grasping prey. That kind of 'Iron Tail' grip would be perfect for a physical appeal."

Ptychotherates bucculentus Folded Hunter with Large Cheeks Late Triassic 2-3 m (6-10 ft) 40-60 kg Sues et al. (2020) USA (Arizona) Dawn: "Large cheeks? It sounds like a Pikachu or a Skwovet! I bet it looks adorable when it eats!"

Zoey: "It’s a specialized early reptile. Those 'folded' teeth are a unique feature that would catch a judge's eye during a close-up."

Smurfette smurfensis Smurfette from Smurf Village Modern (Animated) 3 apples tall ~250 g Peyo (1958) Smurf Village Dawn: "Oh my gosh, she's so cute! She’d be the star of the 'Cute' category. No need to worry, she’s already stage-ready!"

Zoey: "She’s not exactly a dinosaur, but that blue palette and white hat would make for a stunning color-coordinated performance."

Staurikosaurus pricei Southern Cross Lizard Late Triassic 2.25 m (7.4 ft) 30 kg Colbert (1970) Brazil Dawn: "Named after a constellation? That’s so sparkly and romantic! It's like a 'Swift' attack made of stars!"

Zoey: "A lean, mean racing machine. It’s built for speed and agility—essential for a high-scoring 'Cool' appeal."

Name Meaning Age / Time Size (Length) Weight Author Where Found Zoey & Dawn's Comments

Anchisaurus polyzelus Near Lizard Early Jurassic 2 m (6.6 ft) 30 kg Marsh (1885) USA Dawn: "It’s so small and slender! It looks like a long-necked Pokémon before it evolves into something huge!"

Zoey: "It could walk on two legs or four. That kind of versatility is great for switching up your style mid-appeal."

Coloradisaurus brevis Los Colorados Lizard Late Triassic 4 m (13 ft) 200 kg Bonaparte (1978) Argentina Dawn: "A short-snouted cutie! It’s like a bigger version of a Bayleef. No need to worry about those claws!"

Zoey: "The skull shape is very distinct. It would look very dignified in a 'Smart' category performance."

Efraasia minor Eberhard Fraas's Lizard Late Triassic 6 m (20 ft) 300 kg Galton (1973) Germany Dawn: "It looks so graceful, like it’s ready to do a dance! I bet it could spin around just like my Buneary!"

Zoey: "It’s very primitive but elegant. Basal species like this have a natural, clean beauty that judges appreciate."

Lufengosaurus huenei Lufeng Lizard Early Jurassic 6 m (20 ft) 1.7 tons Young (1941) China Dawn: "It’s famous for being the first complete skeleton in China! It’s a total superstar, just like a Top Coordinator!"

Zoey: "Those thumb claws are sharp. Using a 'Slash' move to create sparkling effects would be a high-scoring play."

Massospondylus kaalae Longer Vertebra Early Jurassic 4-6 m (13-20 ft) 1 ton Owen (1854) South Africa Dawn: "Look at those big hands! It looks like it could hold a whole basket of Poffins for its friends!"

Zoey: "It’s a very sturdy contender. It has a balanced 'Tough' and 'Cool' vibe that works in any arena."

Melanorosaurus readi Black Mountain Lizard Late Triassic 8 m (26 ft) 1.3 tons Haughton (1924) South Africa Dawn: "It’s getting bigger! It’s starting to look like a real heavyweight champion!"

Zoey: "This one mostly stayed on four legs. It’s got a very grounded, powerful presence—perfect for a 'Tough' appeal."

Mussaurus patagonicus Mouse Lizard Late Triassic 6 m (20 ft) 1 ton Bonaparte (1979) Argentina Dawn: "Mouse lizard? But it’s so big! Oh, wait—the first ones found were tiny babies? That is so precious!"

Zoey: "Going from 'Mouse' to a giant is a great theme for a performance. It shows incredible growth and potential."

Plateosaurus gracilis Broad Lizard Late Triassic 5-10 m (16-33 ft) 0.6-4 tons von Meyer (1837) Europe Dawn: "The classic long-neck! It’s so tall, it could probably see over the whole Contest Hall! No need to worry!"

Zoey: "It’s very flexible. A 'Magical Leaf' style appeal with its long neck weaving through the leaves would be stunning."

Riojasaurus incertus La Rioja Lizard Late Triassic 6.6 m (22 ft) 800 kg Bonaparte (1969) Argentina Dawn: "It’s so heavy, it can't even stand on two legs anymore! It’s like a big, friendly Meganium."

Zoey: "Four-legged stability means it can support big props on its back. It’s the ultimate team player for a group appeal."

Yunnanosaurus youngi Yunnan Lizard Early Jurassic 7 m (23 ft) 1 ton Young (1942) China Dawn: "Its teeth are like a sauropod's, but it's still a pro-sauropod! It’s in the middle of a big evolution!"

Zoey: "Those spoon-shaped teeth are quite unique. It would be a great candidate for a 'Smart' or 'Beauty' contest."

Name Meaning Age / Time Size (Length) Weight Author Where Found Zoey & Dawn's Comments

Apatosaurus ajax Deceptive Lizard (named after Ajax) Late Jurassic (152–151 MYA) 21–23 m (75 ft) 16–22 tons Marsh (1877) USA (Morrison Formation) Dawn: "It’s the original big friend! It looks so bulky and strong—like an elephant with a really long neck. No need to worry, it’s just a giant cutie!"

Zoey: "The stockier build compared to other diplodocids makes it stand out. It’s got a 'Tough' category vibe that commands the whole stage."

Barosaurus lentus Heavy Lizard (Slow) Late Jurassic (155–145 MYA) 25–27 m (85 ft) 12–20 tons Marsh (1890) USA (South Dakota, Utah) Dawn: "That neck is incredible! It could probably see over a whole forest. I bet it would look amazing rearing up like a giant statuesque appeal!"

Zoey: "It’s differently proportioned with a longer neck and shorter tail. That unique silhouette would definitely catch a judge's eye for 'Beauty'."

Dicraeosaurus sattleri Bifurcated (Forked) Lizard Late Jurassic (155–150 MYA) 14–20 m (66 ft) 15 tons Janensch (1914) Tanzania (Tendaguru Formation) Dawn: "A 'Forked Lizard'? Check out those Y-shaped spines! It’s like it’s wearing a row of tiny crown clips along its neck!"

Zoey: "Those spines are for show and protection. A 'Smart' performance highlighting its unique biology would be a total crowd-pleaser."

Diplodocus hallorum Double Beam (named after the Halls) Late Jurassic (155–150 MYA) 32–33.5 m (110 ft) 20–30 tons Gillette (1991) USA (New Mexico) Dawn: "The 'Double Beam'! It used to be called Seismosaurus because it's so big it shakes the ground! Talk about an impactful entrance!"

Zoey: "The whip-like tail is the ultimate finishing move. One crack of that tail would add some real sparkle to an 'Extreme Speed' appeal."

Mamenchisaurus sinocanadorum Mamenchi Brook Lizard Late Jurassic (160–155 MYA) 35 m (115 ft) 60–80 tons Russell & Zheng (1993) China (Xinjiang) Dawn: "It’s one of the most massive! Look at that neck—it’s half the length of its entire body! No need to worry about missing any views with that!"

Zoey: "That neck is the definition of 'Beauty' and 'Elegance'. Synchronizing its neck movements with music would be a Master Class performance."

Omeisaurus fuxiensis Omei Mountain Lizard Middle-Late Jurassic (165–160 MYA) 15–20 m (65 ft) 10–15 tons He et al. (1984) China (Sichuan) Dawn: "It has a tail club?! It’s like a long-neck that wanted to be an Ankylosaur too. It’s got so much personality!"

Zoey: "A tail club on a sauropod is a rare tactical advantage. It would score huge points in the 'Tough' category during a battle round."

Supersaurus vivianae Super Lizard Late Jurassic (153 MYA) 33–39 m (128 ft) 35–40 tons Jensen (1985) USA (Colorado, Wyoming) Dawn: "SUPER-saurus! The name says it all! It's so long it would take up the whole Contest Hall stage and then some!"

Zoey: "Even though its remains are fragmentary, its massive scale makes it a legendary contender. It’s the ultimate showstopper for any Top Coordinator."

Name Meaning Age / Time Size (Length) Weight Author Where Found Zoey & Dawn's Comments

Brachiosaurus altithorax Arm Lizard / Deep Chest Late Jurassic (155–145 MYA) 18–27 m (59–89 ft) 28–47 tons Riggs (1903) India/USA Dawn: "It’s huge! I bet it could see the whole Sinnoh region from up there! No need to worry, it’s just a giant cutie!"

Zoey: "Those long front legs are a real power statement. It commands the stage just by standing still."

Camarasaurus supremus Chambered Lizard / Biggest Late Jurassic (155–145 MYA) 18–23 m (59–75 ft) 24–42 tons Cope (1877) USA Dawn: "A 'Chambered Lizard'? It’s like it has its own secret rooms inside! Very mysterious!"

Zoey: "It’s a sturdy, classic sauropod. Its boxy head and blunt snout would score huge in a 'Tough' category appeal."

Euhelopus zdanskyi True Marsh Foot Early Cretaceous (130–112 MYA) 11–15 m (36–50 ft) 3.5–20 tons Wiman (1929) China Dawn: "A 'Marsh Foot'? Does it like to splash around in Pastoria City? It sounds so playful!"

Zoey: "It has an exceptionally long neck for its size. That reach is perfect for precision appeals."

Haplocanthosaurus delfsi Simple Spined Lizard / named after Edwin Delfs Late Jurassic (155–152 MYA) 22 m (72 ft) 20–25 tons McIntosh & Williams (1988) USA Dawn: "They call it 'Happy'! How sweet is that? It’s practically a giant mascot for the Grand Festival!"

Zoey: "A rare, enigmatic find. Having a 'Happy' on your team would definitely intrigue the judges."

Rebbachisaurus garasbae Rebbach Lizard / from Gara Sbaa Early-Late Cretaceous (112–99 MYA) 14–20 m (46–66 ft) 7–12 tons Lavocat (1954) Morocco Dawn: "It has a sail on its back! It’s like a prehistoric version of a Basculin, but way bigger!"

Zoey: "Those tall spines were either a sail or a hump. Either way, it’s a high-impact silhouette for a 'Cool' appeal."

Sauroposeidon proteles Lizard Poseidon / Perfect before the end Early Cretaceous (118–110 MYA) 27–34 m (89–112 ft) 40–60 tons Wedel et al. (2000) USA Dawn: "Lizard Poseidon! It’s named after a god! It must be the king of the sea and the land!"

Zoey: "It's the tallest known dinosaur. Lifting its head six stories high is the ultimate showstopper."

Name Meaning Age / Time Size (Length) Weight Author Where Found Zoey & Dawn's Comments

Alamosaurus sanjuanensis Ojo Alamo Lizard Late Cretaceous 26–30 m (98 ft) 30–60 tons Gilmore (1922) USA (Southwest) Dawn: "A giant from the desert! It reminds me of a giant Terrakion—super strong and sturdy!"

Zoey: "It was the last of the giant sauropods in North America. That kind of 'final boss' energy is perfect for a Grand Festival entrance."

Antarctosaurus giganteus Southern Lizard Late Cretaceous 23–30 m (100 ft) 40–70 tons von Huene (1929) Argentina Dawn: "It has a funny name, but it's not from Antarctica! It's so big, it makes a Torterra look like a Turtwig!"

Zoey: "It’s a massive Titanosaur. Just its footprints would create a dramatic 'Earthquake' visual for a Tough appeal."

Argentinosaurus huinculensis Argentina Lizard Late Cretaceous 30–35 m (115 ft) 70–90 tons Bonaparte & Coria (1993) Argentina Dawn: "Whoa! This might be the biggest one ever! No need to worry—I don't think it could even see us down here!"

Zoey: "The ultimate heavyweight. You don't even need moves when you have a presence that commands the entire horizon."

Barapasaurus tagorei Big-legged Lizard Early Jurassic 12–14 m (46 ft) 7–8 tons Jain et al. (1975) India Dawn: "Big-legged? Those legs look like giant tree trunks! It’s like a prehistoric Tropius!"

Zoey: "Those sturdy limbs are built for stability. It would be a great base for a multi-Pokémon 'Tower' appeal."

Cetiosaurus oxoniensis Whale Lizard Middle Jurassic 16 m (52 ft) 11 tons Owen (1841) England Dawn: "A 'Whale Lizard'? That’s so silly! It’s like a Wailord that decided to take a walk on land!"

Zoey: "It’s one of the first sauropods ever studied. Sometimes the 'Old School' style is the most elegant on stage."

Dreadnoughtus schrani Fearer of Nothing Late Cretaceous 26 m (85 ft) 49–59 tons Lacovara et al. (2014) Argentina Dawn: "Fearer of nothing? What a brave name! It’s like it has the 'Inner Focus' ability!"

Zoey: "It has a super thick tail. A 'Dragon Tail' appeal with that much muscle would be incredibly powerful."

Laplatasaurus araukanicus La Plata Lizard Late Cretaceous 18 m (60 ft) 15 tons von Huene (1929) Argentina Dawn: "It’s a classic long-neck! It looks so friendly, like it would help me get berries from the tallest trees."

Zoey: "It has some armored plates on its skin. That hint of 'Steel' type glint would look great under the spotlights."

Nemegtosaurus mongoliensis Nemegt Lizard Late Cretaceous 12 m (40 ft) 10 tons Nowiński (1971) Mongolia Dawn: "We only have its head? That’s so mysterious! It’s like a ghost-type puzzle!"

Zoey: "Its skull is very similar to Diplodocus. It shows that even in different families, 'Beauty' can look very similar."

Opisthocoelicaudia skarzynskii Rear-hollow-tailed Late Cretaceous 11–13 m (40 ft) 8–10 tons Borsuk-Białynicka (1977) Mongolia Dawn: "Wait, this one is missing its head but has a body! Maybe it and Nemegtosaurus can team up!"

Zoey: "It has a very rigid tail. It could probably prop itself up on its back legs for a 'High Jump' pose."

Patagotitan mayorum Patagonian Titan Late Cretaceous 37 m (121 ft) 70 tons Carballido et al. (2017) Argentina Dawn: "It’s so long it wouldn't even fit in the stadium! No need to worry, we'll just watch from outside!"

Zoey: "It's the definition of a Titan. A 'Giga Impact' move from this would be literally ground-breaking."

Saltasaurus loricatus Salta Lizard Late Cretaceous 8–12 m (39 ft) 7 tons Bonaparte & Powell (1980) Argentina Dawn: "It has little bumps all over it! It’s wearing armor just like an Aggron! So cool!"

Zoey: "Those bony plates are called osteoderms. They add a 'Tough' texture to a 'Beauty' category silhouette."

Vulcanodon karibaensis Volcano Tooth Early Jurassic 6.5 m (21 ft) 3.5 tons Raath (1972) Zimbabwe Dawn: "Volcano Tooth? That sounds like a Fire-type move! It's small but it looks like it has a 'Flash Fire' spirit!"

Zoey: "It’s a very early sauropod. It still has some traits of its smaller ancestors, making it a unique 'Hybrid' style performer."

Name Meaning Age / Time Size (Length) Weight Author Where Found Zoey & Dawn's Comments

Abrictosaurus consors Wakeful Lizard Early Jurassic 1.2 m (4 ft) 4 kg Thulborn (1974) South Africa Dawn: "Wakeful? It must have the Insomnia ability! It looks like a little Buneary that never wants to take a nap."

Zoey: "It lacks the tusks of its relatives, giving it a much softer, 'Cute' category look for the stage."

Echinodon becklesii Prickly Tooth Early Cretaceous 0.6 m (2 ft) 0.5 kg Owen (1861) England Dawn: "It’s so tiny! It’s like a prehistoric Jolteon with all those prickly bits. No need to worry, it’s adorable!"

Zoey: "Those bristly scales are perfect for a 'Spiky Shield' visual. It’s small, but it definitely has an edge."

Fabrosaurus australis Fabre's Lizard Early Jurassic 1 m (3.3 ft) 3 kg Ginsburg (1964) Lesotho Dawn: "It’s a classic starter dinosaur! It looks so energetic, like it’s ready to use 'Quick Attack' across the stage!"

Zoey: "Very simple and clean lines. It’s a great 'blank slate' for a Coordinator to show off their accessorizing skills."

Geranosaurus atavus Crane Lizard Early Jurassic 1.2 m (4 ft) 5 kg Broom (1911) South Africa Dawn: "Crane lizard? I wonder if it’s as graceful as a Wingull? It looks very light on its feet!"

Zoey: "The beak structure is very specialized. It would look very 'Smart' performing a precise pecking appeal."

Heterodontosaurus tucki Different-toothed Lizard Early Jurassic 1.2 m (4 ft) 3-5 kg Crompton & Charig (1962) South Africa Dawn: "Check out those fangs! It’s like a little Bagon with a big secret. Is it a herbivore or a carnivore? So mysterious!"

Zoey: "Those tusks are a total showstopper. Using 'Poison Fang' or 'Fire Fang' visuals with those would score huge 'Cool' points."

Lesothosaurus diagnosticus Lesotho Lizard Early Jurassic 2 m (6.6 ft) 10 kg Galton (1971) Lesotho / South Africa Dawn: "It’s so leggy and fast! It reminds me of a prehistoric version of a Deerling in its Spring form!"

Zoey: "Its best defense is its speed. A 'Double Team' appeal using its agility would leave the judges dizzy with excitement."

Scutellosaurus lawleri Small-shielded Lizard Early Jurassic 1.2 m (4 ft) 3 kg Colbert (1981) USA (Arizona) Dawn: "It’s wearing tiny bits of armor! It’s like a little Aron that’s just starting to grow its shell!"

Zoey: "Those bony studs (scutes) catch the light beautifully. A 'Flash' or 'Iron Defense' appeal would make it sparkle."

Name Meaning Age / Time Size (Length) Weight Author Where Found Zoey & Dawn's Comments

Callovosaurus leedsi Callovian Lizard Middle Jurassic 3.5 m (11 ft) 120 kg Galton (1980) England Dawn: "A 'Callovian' lizard? It sounds so sophisticated, like it belongs in a high-class Contest in Hearthome City!"

Zoey: "It's one of the oldest dryosaurids. That kind of classic elegance is always in style for the 'Beauty' category."

Dryosaurus elderae Oak Lizard Late Jurassic 3-4 m (13 ft) 80-90 kg Carpenter & Galton (2018) USA Dawn: "Oak Lizard? It’s like a grass-type friend! It looks so sleek, like it could outrun a Leafeon!"

Zoey: "Very large eyes and long legs. It’s built for 'Agility' appeals—watching it dodge obstacles would be mesmerizing."

Fulgurotherium australe Lightning Beast Early Cretaceous 1-1.5 m (5 ft) 6 kg von Huene (1932) Australia Dawn: "Lightning Beast?! That’s the coolest name ever! It’s like a tiny Jolteon with a long tail!"

Zoey: "Despite the name, it's a small runner. Using 'Quick Attack' with a name like 'Lightning Beast' would really pump up the crowd."

Hypsilophodon foxii High-ridged Tooth Early Cretaceous 1.8 m (6 ft) 20 kg Huxley (1869) England Dawn: "It’s the classic speedy climber! It looks so peppy, just like my Pachirisu when it's excited!"

Zoey: "It has a very balanced silhouette. It's the perfect starter dinosaur for a Coordinator just beginning their journey."

Loncosaurus argentinus Chief Lizard Late Cretaceous 5 m (16 ft) 200 kg Ameghino (1898) Argentina Dawn: "The 'Chief'! It looks like it’s in charge of its own little herd. No need to worry, it looks like a kind leader!"

Zoey: "It’s a bit of a mystery dinosaur. A Coordinator who can pull off a great appeal with a rare specimen like this shows real skill."

Nanosaurus agilis Agile Small Lizard Late Jurassic 2 m (6.6 ft) 10 kg Marsh (1877) USA Dawn: "It’s so tiny and 'agile'! We could do a 'Double Team' spin that would leave the judges' heads spinning!"

Zoey: "This one has been renamed a few times, but its speed is legendary. It’s all about fast-paced, 'Cool' transitions."

Parksosaurus warreni Parks' Lizard Late Cretaceous 2.5 m (8 ft) 45 kg Sternberg (1937) Canada Dawn: "It’s like a bigger version of a Sentret! I bet it’s really good at standing on its tippy-toes to see the stage!"

Zoey: "It’s a very sturdy small herbivore. It carries itself with a solid 'Tough' presence even though it’s small."

Thescelosaurus garbanii Marvellous Lizard Late Cretaceous 4 m (13 ft) 250-300 kg Morris (1976) USA Dawn: "Marvelous! That’s exactly what the judges say when I win! It looks so fancy and special!"

Zoey: "It was one of the last of its kind. That 'final act' energy makes it a great choice for a Grand Festival finale."

Valdosaurus canaliculatus Weald Lizard Early Cretaceous 4 m (13 ft) 150 kg Galton (1975) England / Niger Dawn: "It’s a world traveler! Found in Europe and Africa—it’s like it’s going on a journey to collect Ribbons!"

Zoey: "It has very powerful hind legs. A 'High Jump' appeal followed by a graceful landing would be a high-scorer."

Zephyrosaurus schaffi West Wind Lizard Early Cretaceous 1.8 m (6 ft) 20 kg Sues (1980) USA Dawn: "West Wind... that’s so poetic! It’s like it’s moving with a 'Gust' or a 'Tailwind' move!"

Zoey: "It lived in burrows! A 'Dig' appeal that turns into a surprise 'Air Slash' visual would be totally unexpected and cool."

Name Meaning Age / Time Size (Length/Height) Weight Author Where Found Zoey & Dawn's Comments

Camptosaurus dispar Flexible Lizard Late Jurassic (157–145 MYA) 6–7 m (20–23 ft) long; 2 m (6.6 ft) at hips 500–1,000 kg Marsh (1885) North America, Europe Dawn: "A 'Flexible Lizard'? It looks so graceful, like a Buneary doing a warm-up stretch before a Contest!"

Zoey: "Its ability to switch between two legs and four makes it very versatile for different appeal styles."

Iguanodon bernissartensis Iguana Tooth Early Cretaceous (126–122 MYA) 9–12 m (30–40 ft) long; 3 m (10 ft) tall 3.5–5 tons Boulenger & van Beneden (1881) Europe (Belgium, Germany, England, Spain) Dawn: "Check out that huge thumb spike! It’s like a built-in prop for a super-powered move. No need to worry, it looks friendly!"

Zoey: "A classic heavyweight. That thumb spike isn't just for show—it would make a powerful impact in a battle round."

Muttaburrasaurus langdoni Lizard from Muttaburra Early Cretaceous (112–100 MYA) 7–9 m (23–29.5 ft) long; 2.5 m (8.2 ft) tall 2.8–8 tons Bartholomai & Molnar (1981) Australia (Queensland, New South Wales) Dawn: "It has a big, round nose! I bet it makes a sound like a trumpeting Kricketune when it's happy."

Zoey: "That specialized snout might have been for vocalizing. A Coordinator could use that for a unique sound-based appeal."

Ouranosaurus nigeriensis Brave (Monitor) Lizard Early Cretaceous (115–100 MYA) 7–8 m (23–26 ft) long; 3 m (10 ft) tall 2–4 tons Taquet (1976) Africa (Niger, Cameroon) Dawn: "It has a huge sail on its back! It's like a prehistoric version of a Basculin or a Finneon. So flashy!"

Zoey: "That sail is a natural attention-grabber. It would look stunning with some glitter and spotlights during a Grand Festival."

Probactrosaurus gobiensis Before Bactrosaurus (from Gobi) Early Cretaceous (96–92 MYA) 5.5–6 m (18–20 ft) long 1 ton Rozhdestvensky (1966) China / Mongolia Dawn: "It’s an early relative of the big duck-bills! It looks so eager, like a starter Pokémon ready to evolve!"

Zoey: "The transition between basal iguanodonts and hadrosaurs is fascinating. It’s got a very clean, 'Smart' silhouette."

Tenontosaurus dossi Sinew Lizard Early Cretaceous (115–108 MYA) 6.5–8 m (21–26 ft) long; 3 m (10 ft) tall 1–2 tons Winkler, Murray & Jacobs (1997) North America (Texas) Dawn: "Look at that long tail! It’s like a giant whip. No need to worry about being seen with a tail that big!"

Zoey: "The tail makes up more than half its length. It’s perfect for sweeping appeals or a dramatic 'Tail Whip' finish."

Name Meaning Age / Time Size (Length) Weight Author Where Found Zoey & Dawn's Comments

Brachylophosaurus canadensis Short-Crested Lizard from Canada Late Cretaceous (81–76 MYA) 7–11 m (23–36 ft) 2–7 tons Sternberg (1953) Canada & USA Dawn: "A short crest? It’s like a subtle hair accessory! No need to worry, its skin is so well-preserved it looks like it just finished a spa day."

Zoey: "The flat, paddle-like crest is a unique design. In a Contest, that texture would really make a 'Beauty' appeal stand out."

Edmontosaurus regalis Regal Edmonton Lizard Late Cretaceous (73 MYA) 12–15 m (39–49 ft) 4–9 tons Lambe (1917) Canada Dawn: "Regal! It’s the king of the duck-bills! It's so big, it would need a whole mountain of Poffins just for a snack!"

Zoey: "A massive, powerful silhouette. It has a 'Tough' category presence that doesn't even need flashy moves to win."

Gryposaurus latidens Hook-Nosed Lizard with Wide Teeth Late Cretaceous (84–75 MYA) 8–10 m (26–33 ft) 2 tons Horner (1992) USA (Montana) Dawn: "That Roman nose is so distinguished! It looks like a proud leader of the herd. No need to worry about missing its profile!"

Zoey: "That arching nasal hump is a perfect focal point. A 'Smart' category appeal focused on its unique head shape would score high."

Hadrosaurus foulkii Foulke’s Bulky Lizard Late Cretaceous (80–70 MYA) 7–10 m (23–33 ft) 2–8 tons Leidy (1858) USA (New Jersey) Dawn: "The first ever to be put on display! It’s a total superstar! It’s like the very first Top Coordinator of the dinosaur world!"

Zoey: "It’s a robust, classic design. Its history alone makes it a 'Legendary' style entry for the Grand Festival."

Maiasaura peeblesorum Good Mother Lizard Late Cretaceous (77–76 MYA) 9 m (30 ft) 2.5–3 tons Horner & Makela (1979) USA (Montana) Dawn: "A 'Good Mother'! That’s so sweet! It’s like a prehistoric Kangaskhan taking care of all its little ones!"

Zoey: "Nurturing is its theme. A 'Cute' or 'Beauty' appeal featuring a family-style performance would capture the judges' hearts."

Prosaurolophus maximus Before the Crested Lizard / Largest Late Cretaceous (76–75 MYA) 8–9 m (26–30 ft) 2–3 tons Brown (1916) Canada & USA Dawn: "It has a small crest right in front of its eyes! It’s like a little tiara. No need to worry, it’s very stylish!"

Zoey: "The crest is small but sharp. It’s perfect for a 'Cool' appeal that emphasizes its direct and focused gaze."

Saurolophus osborni Osborn’s Crested Lizard Late Cretaceous (70–68 MYA) 9–12 m (30–39 ft) 2–5 tons Brown (1912) Canada Dawn: "Look at that long, spikey crest! It’s like it’s wearing a party hat for the Grand Festival! So fun!"

Zoey: "The crest is actually a hollow tube. Imagine using 'Echoed Voice' through that—the sound effects would be incredible."

Shantungosaurus giganteus Giant Shandong Lizard Late Cretaceous (75–70 MYA) 15–16.6 m (49–54 ft) 13–16 tons Hu (1973) China Dawn: "It’s the biggest of them all! It makes even the big T-rex look small! No need to worry... but that's a lot of dinosaur!"

Zoey: "Pure scale. It commands the entire arena just by walking in. It’s the ultimate showstopper for a 'Tough' category finale."

Name Meaning Age / Time Size (Length) Weight Author Where Found Zoey & Dawn's Comments

Amurosaurus riabinini Amur River Lizard Late Cretaceous (70–66 MYA) 6–8 m (20–26 ft) 2–3 tons Bolotsky & Kurzanov (1991) Russia Dawn: "A river lizard! I bet it loves to splash around with Floatzel. No need to worry about it getting wet!"

Zoey: "It has a crest that starts between its eyes. Very stylish for a 'Beauty' appeal focused on the face."

Charonosaurus jiayinensis Charon's Lizard Late Cretaceous (66 MYA) 10–13 m (33–43 ft) 6–7 tons Godefroit et al. (2000) China Dawn: "Named after the ferryman of the underworld? That's so mysterious! It's like a Ghost-type dinosaur!"

Zoey: "It’s a massive lambeosaurine. Its size and large hollow crest make for a very 'Cool' and intimidating stage presence."

Corythosaurus casuarius Helmet Lizard / Cassowary-like Late Cretaceous (77–75 MYA) 9 m (30 ft) 3–4 tons Brown (1914) Canada Dawn: "It looks like it’s wearing a giant dinner plate or a helmet! It’s like a prehistoric version of a Bastiodon!"

Zoey: "The 'Helmet' crest is iconic. A Coordinator could use sound moves to make that crest vibrate and glow!"

Hypacrosaurus stebingeri Near the Highest Lizard Late Cretaceous (75 MYA) 9 m (30 ft) 3–4 tons Horner & Currie (1994) USA / Canada Dawn: "It has a high spine and a crest! It’s like it’s trying to be two dinosaurs at once. So over the top!"

Zoey: "The high neural spines give it a 'Tough' look, but that crest keeps it in the 'Beauty' category. A great hybrid!"

Jaxartosaurus aralensis Jaxartes River Lizard Late Cretaceous (85–83 MYA) 9 m (30 ft) 4 tons Riabinin (1939) Kazakhstan Dawn: "It comes from near the Aral Sea! I wonder if it likes playing in the sand like a Hippowdon?"

Zoey: "A very early lambeosaur. It’s the 'original' style that set the trend for all the fancy crests that came later."

Lambeosaurus magnicristatus Lambe's Large-Crested Lizard Late Cretaceous (75 MYA) 9–10 m (30–33 ft) 3–4 tons Sternberg (1935) Canada Dawn: "That crest looks like a giant mitten! It’s so cute, it looks like it’s waving at the audience!"

Zoey: "The 'Magnificent' crest is its best feature. It’s a bold fashion statement that would score high in 'Cool' contests."

Magnapaulia laticaudus Large Paul (named after Paul G. Haaga) Late Cretaceous (73 MYA) 12.5 m (41 ft) 8–10 tons Prieto-Márquez et al. (2012) Mexico Dawn: "Whoa! It’s the largest of the lambeosaurs! It’s a giant with a fancy hat! No need to worry about missing this one!"

Zoey: "The tail is exceptionally deep. Using 'Aqua Tail' visuals with a tail that big would be a total showstopper."

Olorotitan arharensis Giant Swan Late Cretaceous (70–66 MYA) 8 m (26 ft) 3 tons Godefroit et al. (2003) Russia Dawn: "A 'Giant Swan'? It’s like a Swanna that grew legs and a long tail! So elegant and pretty!"

Zoey: "That axe-shaped crest and extra-long neck make it the ultimate 'Beauty' category contender. Very graceful."

Parasaurolophus walkeri Near Saurolophus Late Cretaceous (76–73 MYA) 9.5 m (31 ft) 2.5–3 tons Parks (1922) Canada / USA Dawn: "That long tube on its head is so cool! It’s like a built-in trumpet for a musical appeal!"

Zoey: "It could make low-frequency sounds that you can feel in your chest. That's a 'Tough' and 'Smart' way to use its crest."

Tsintaosaurus spinorhinus Qingdao Lizard Late Cretaceous (70 MYA) 8–10 m (26–33 ft) 3 tons Young (1958) China Dawn: "It looks like it has a unicorn horn! It’s like a dinosaur version of a Rapidash! So magical!"

Zoey: "The crest is actually more like a petal or a sail. It’s a very 'Smart' design that stands out from the crowd."

Name Meaning Age / Time Size (Length) Weight Author Where Found Zoey & Dawn's Comments

Bagaceratops rozhdestvenskyi Small Horned Face Late Cretaceous (80–75 MYA) 1 m (3.3 ft) 22 kg Maryańska & Osmólska (1975) Mongolia Dawn: "It’s so tiny! It’s like a little Bagon that hasn't grown its shell yet. No need to worry, it’s adorable!"

Zoey: "The small size and lack of brow horns make it a 'Cute' category favorite. It would be easy to coordinate with."

Leptoceratops gracilis Slender Horned Face Late Cretaceous (68–66 MYA) 2.5 m (8 ft) 200 kg Brown (1914) USA / Canada Dawn: "Slender? It looks pretty sturdy to me! Like a middle evolution of a Shieldon."

Zoey: "It lacks a nose horn but has a very deep tail. It’s an 'Elegance' pick for those who like clean, hornless silhouettes."

Microceratus gobiensis Small Horned (from Gobi) Late Cretaceous (85–80 MYA) 0.6 m (2 ft) 2 kg Bohlin (1953) Mongolia / China Dawn: "Oh my gosh, it’s even smaller than my Pachirisu! I just want to carry it in my arms!"

Zoey: "It’s one of the smallest on the list. A 'Double Team' appeal with something this fast and tiny would be stunning."

Montanoceratops cerorhynchus Montana Horned Face Late Cretaceous (70 MYA) 3 m (10 ft) 170 kg Sternberg (1951) USA (Montana) Dawn: "It has a little horn on its nose! It’s starting to look like a real 'Tough' type now!"

Zoey: "The tall spines on its tail give it a unique look. It’s perfect for a 'Cool' appeal focusing on its jagged profile."

Protoceratops hellenikorhinus First Horned Face (Greek Nose) Late Cretaceous (75–71 MYA) 1.8–2.5 m (6–8 ft) 60–180 kg Lambert et al. (2001) Mongolia Dawn: "The 'Sheep of the Gobi'! It looks so soft and friendly, even with that big beak!"

Zoey: "That large frill is a natural canvas. You could paint it with temporary colors for a high-fashion 'Beauty' appeal."

Psittacosaurus meileyingensis Parrot Lizard Early Cretaceous (125–100 MYA) 1–2 m (3–6 ft) 20 kg Sereno et al. (1988) China Dawn: "A parrot lizard? It doesn't have wings, but that beak is just like a Chatot’s! So funny!"

Zoey: "Some species had long bristles on their tails. Using 'Tailwind' to blow those bristles around would look amazing."

Name Meaning Age / Time Size (Length) Weight Author Where Found Zoey & Dawn's Comments

Anchiceratops ornatus Near Horned Face (Ornate) Late Cretaceous (72–71 MYA) 6 m (20 ft) 2 tons Brown (1914) Canada Dawn: "Ornate is right! Look at all those little bumps and horns on the frill. It’s like it’s wearing a crown of jewels!"

Zoey: "It’s very well-proportioned. The 'Beauty' of its frill would definitely catch the judges' attention during the first round."

Arrhinoceratops brachyops No Nose Horn Face Late Cretaceous (71–70 MYA) 6 m (20 ft) 2 tons Parks (1925) Canada Dawn: "It has long brow horns but no nose horn! It reminds me of a Pokémon that’s mid-evolution. No need to worry, it still looks tough!"

Zoey: "The focus is all on the eyes with this one. A 'Cool' appeal highlighting those long brow horns would be very sharp."

Chasmosaurus belli Opening Lizard Late Cretaceous (76–75 MYA) 5 m (16 ft) 2 tons Lambe (1914) Canada Dawn: "Those holes in its frill make it look so light! It’s like it’s wearing a lace collar for a high-class gala!"

Zoey: "The 'Opening' in its name refers to the large fenestrae in the frill. It's a great example of a 'Smart' and elegant design."

Pentaceratops sternbergii Five-Horned Face Late Cretaceous (76–73 MYA) 6.4 m (21 ft) 5 tons Osborn (1923) USA (New Mexico) Dawn: "Five horns?! That’s two more than Triceratops! It’s like it’s trying to be the ultimate 'Tough' type!"

Zoey: "It has one of the largest skulls of any land animal. Just standing there, it commands the stage with massive presence."

Torosaurus latus Perforated Lizard Late Cretaceous (68–66 MYA) 8 m (26 ft) 6 tons Marsh (1891) USA / Canada Dawn: "That frill is so huge it could be its own stage! I bet we could do a whole dance routine right on its head!"

Zoey: "It’s the most extreme of the chasmosaurs. It’s all about the 'Cool' factor of having the biggest headpiece in the room."

Triceratops horridus Three-Horned Face (Rough) Late Cretaceous (68–66 MYA) 8–9 m (30 ft) 6–12 tons Marsh (1889) USA / Canada Dawn: "The most famous one! It’s like the champion of the Sinnoh League! We’d definitely win the Ribbon with this partner!"

Zoey: "Solid, powerful, and iconic. Using 'Iron Head' or 'Take Down' with those horns would be a total showstopper."

Name Meaning Age / Time Size (Length) Weight Author Where Found Zoey & Dawn's Comments

Avaceratops lammersi Ava's Horned Face Late Cretaceous (77 MYA) 4.2 m (14 ft) 1 ton Dodson (1986) USA (Montana) Dawn: "It’s like a mini-Triceratops! So cute and compact, it would fit perfectly in a small Contest Hall stage!"

Zoey: "The lack of brow horns makes it look very sleek. It’s a great choice for a 'Beauty' category appeal."

Brachyceratops montanensis Short Horned Face Late Cretaceous (74 MYA) 1.5–5 m (5–16 ft) 300 kg - 1.5 tons Gilmore (1914) USA / Canada Dawn: "It’s so small! Is it a baby? It reminds me of a little Shieldon that’s just starting to grow its face-plate!"

Zoey: "Since we mostly have juveniles, it has that 'Cute' appeal that judges love in the early rounds."

Centrosaurus apertus Sharp Point Lizard Late Cretaceous (76–75 MYA) 6 m (20 ft) 2.5 tons Lambe (1904) Canada Dawn: "That one big horn is so cool! It’s like a prehistoric version of a Rhyhorn. No need to worry, it looks very sturdy!"

Zoey: "The hook-like horns on the frill are a great detail. Using 'Poison Jab' visuals with those hooks would be very creative."

Monoclonius crassus Single Sprout Late Cretaceous (75 MYA) 5 m (16 ft) 2 tons Cope (1876) USA / Canada Dawn: "Single sprout? That sounds like a Grass-type name! It’s like a Budew that grew up to be a giant tank!"

Zoey: "It’s a classic 'Cool' type. That single, long nose horn makes for a very sharp and focused silhouette."

Nasutoceratops titusi Large-nosed Horned Face Late Cretaceous (76–75 MYA) 4.5 m (15 ft) 1.5 tons Sampson et al. (2013) USA (Utah) Dawn: "Look at those horns! They curve forward like a Tauros! It’s so unique—I’ve never seen anything like it!"

Zoey: "Those 'cow-like' horns are a total fashion statement. It would definitely win points for originality in any Contest."

Pachyrhinosaurus lakustai Thick-nosed Lizard Late Cretaceous (73–72 MYA) 6–8 m (20–26 ft) 3 tons Currie et al. (2008) Canada Dawn: "It doesn't have horns on its nose, just a big, flat bump! It’s like it’s wearing a thick headband!"

Zoey: "That 'boss' on its snout is built for ramming. A 'Head Smash' appeal would show off its incredible 'Tough' power."

Styracosaurus ovatus Spiked Lizard Late Cretaceous (75 MYA) 5.5 m (18 ft) 2.7 tons Gilmore (1930) USA / Canada Dawn: "Whoa! Look at all those spikes! It’s like a giant, prehistoric Jolteon! It’s so flashy and cool!"

Zoey: "This is the ultimate 'Cool' category contender. Those long frill spikes create a dramatic starburst effect on stage."

Name Meaning Age / Time Size (Length) Weight Author Where Found Zoey & Dawn's Comments

Alaskacephale gangloffi Alaska Head Late Cretaceous 2.5 m (8 ft) 40 kg Sullivan (2006) USA (Alaska) Dawn: "A head as hard as ice! It must be used to the cold, just like a Swinub in Snowpoint City!"

Zoey: "The spikes on the back of its head are very sharp. It’s got a 'Cool' style that works even in the freezing north."

Goyocephale lattimorei Elegant Head Late Cretaceous 2 m (6.6 ft) 10-20 kg Perle et al. (1982) Mongolia Dawn: "It has a flat head instead of a dome! It looks so sleek—like it's ready for a high-fashion runway!"

Zoey: "Flat-headed pachycephalosaurs are very 'Smart' category. That unique profile really stands out from the 'Tough' dome-heads."

Gravitholus albertae Heavy Dome Late Cretaceous 3 m (10 ft) 50 kg Wall & Galton (1979) Canada Dawn: "Heavy dome? It sounds like it could use a 'Headbutt' move that would rattle the whole stadium!"

Zoey: "It has one of the thickest skulls relative to its size. It’s the definition of a 'Tough' category heavyweight."

Homalocephale calathocercos Even Head / Basket Tail Late Cretaceous 1.8 m (6 ft) 40 kg Maryańska & Osmólska (1974) Mongolia Dawn: "A basket tail? That sounds so handy! Maybe it could help me carry Poffins to the other Pokémon!"

Zoey: "The wide hips and flat head make for a very stable, balanced silhouette. It would be very graceful during a spin appeal."

Pachycephalosaurus wyomingensis Thick-Headed Lizard Late Cretaceous 4.5 m (15 ft) 450 kg Brown & Schlaikjer (1943) USA / Canada Dawn: "The biggest of them all! It’s like a giant Rampardos! No need to worry, just don't get in the way of its dash!"

Zoey: "Total stage presence. When it enters the arena, everyone knows a high-impact 'Zen Headbutt' appeal is coming."

Prenocephale prenes Sloping Head Late Cretaceous 2.4 m (8 ft) 130 kg Maryańska & Osmólska (1974) Mongolia Dawn: "Its head is so round and smooth! It looks like a giant, prehistoric Poké Ball! How cute!"

Zoey: "The closed-in dome makes it look very polished. It’s a top-tier pick for a 'Beauty' contest focusing on clean lines."

Sphaerotholus edmontonensis Spherical Dome Late Cretaceous 2 m (6.6 ft) 40 kg Williamson & Carr (2002) Canada Dawn: "A perfect sphere! I bet it could reflect the stage lights like a beautiful disco ball!"

Zoey: "It’s a very specialized dome-head. Using a move like 'Flash' off that smooth skull would be a brilliant appeal."

Stegoceras validum Horned Roof Late Cretaceous 2 m (6.6 ft) 35 kg Lambe (1902) Canada / USA Dawn: "It has a little shelf of spikes around its dome! It’s like a built-in tiara for the Grand Festival!"

Zoey: "This is the classic pachycephalosaur. It’s very versatile—great for 'Cool', 'Tough', or 'Smart' categories."

Stygimoloch spinifer Thorny Devil from the River Styx Late Cretaceous 3 m (10 ft) 80 kg Galton & Sues (1983) USA Dawn: "Look at those long spikes! It looks so edgy and cool—like a prehistoric Dark-type Pokémon!"

Zoey: "Those massive horns on the back of the head are incredible. It’s a 'Cool' category champion without a doubt."

Tylocephale gilmorei Swollen Head Late Cretaceous 2 m (6.6 ft) 40 kg Maryańska & Osmólska (1974) Mongolia Dawn: "Its dome is extra tall! It’s like it’s wearing a giant chef’s hat. I wonder if it’s a good cook?"

Zoey: "The height of the dome gives it a very regal, 'Smart' appearance. It carries itself with a lot of dignity on stage."

Name Meaning Age / Time Size (Length) Weight Author Where Found Zoey & Dawn's Comments

Chungkingosaurus jiangbeiensis Chongqing Lizard Late Jurassic 3-4 m (13 ft) 1 ton Dong et al. (1983) China Dawn: "It’s like a smaller, spikier version of a Torterra! I bet it could do a really cute 'Rock Polish' move!"

Zoey: "It has long spikes on its tail and plates on its back. That's a lot of visual interest for a 'Cool' appeal."

Craterosaurus pottonensis Bowl Lizard Early Cretaceous 4 m (13 ft) 300 kg Seeley (1874) England Dawn: "A 'Bowl Lizard'? That sounds like it’s ready to help me mix some Poffin dough! How handy!"

Zoey: "We only have part of its back bone, but it’s a rare Stegosaur relative. Mystery always adds points in 'Smart' contests."

Dacentrurus armatus Very Sharp Tail Late Jurassic 7-8 m (26 ft) 5 tons Lucas (1902) Europe Dawn: "Yikes! Those spikes on its tail look even sharper than a Skarmory's wing! No need to worry, I'll stay back!"

Zoey: "It has pairs of spikes all the way down its back. It’s a very aggressive, 'Tough' look for the arena."

Gigantspinosaurus sichuanensis Giant Spined Lizard Late Jurassic 4.2 m (14 ft) 700 kg Ouyang (1992) China Dawn: "Whoa! Look at those huge shoulder spikes! It’s like it’s wearing giant, sparkly pauldrons!"

Zoey: "Those shoulder spines are incredible. A 'Steel Wing' or 'Spiky Shield' visual with those would be a total showstopper."

Huayangosaurus taibaii Huayang Lizard Middle Jurassic 4.5 m (15 ft) 1-4 tons Dong et al. (1982) China Dawn: "It’s one of the oldest! It still has teeth in the front of its mouth—it's like a prehistoric star in the making!"

Zoey: "It has a broader snout than later stegosaurs. It’s got a very sturdy, 'Tough' category silhouette."

Kentrosaurus aethiopicus Spiked Lizard Late Jurassic 4.5 m (15 ft) 1-2 tons Hennig (1915) Tanzania Dawn: "It’s so pokey! It’s like a giant, prehistoric Sandslash! No need to worry about being hit with those spikes!"

Zoey: "The spikes transition from plates to long needles. Using 'Pin Missile' visuals would make for a very 'Cool' appeal."

Lexovisaurus durobrivensis Lexovi Lizard Middle Jurassic 5-6 m (20 ft) 2 tons Hoffstetter (1957) Europe Dawn: "It has such long, elegant spines! It looks like it’s ready for a gala at the Ribbon Syndicate!"

Zoey: "The placement of its spikes makes for a very clean, sharp line. It’s an 'Elegance' pick for sure."

Scelidosaurus harrisonii Limb Lizard Early Jurassic 4 m (13 ft) 270 kg Owen (1859) England Dawn: "It’s an early relative of the armor-backs! It looks so humble and sweet, like a little Aron!"

Zoey: "It’s a transitional dinosaur. Its simple rows of studs are a classic look that works well in 'Smart' category appeals."

Stegosaurus stenops Roofed Lizard Late Jurassic 9 m (30 ft) 5-7 tons Marsh (1887) USA Dawn: "The most famous one! Those plates are so big, I bet we could make them glow like a Chinchou’s lights!"

Zoey: "The ultimate 'Beauty' contender. Alternating colors on those plates during an appeal would be an automatic 10."

Wuerhosaurus ordosensis Wuerho Lizard Early Cretaceous 7 m (23 ft) 4 tons Dong (1993) China Dawn: "Its plates are long and flat! It looks like it’s carrying a bunch of fans for a traditional dance!"

Zoey: "Those low, rectangular plates give it a very unique 'Modern' look. It’s perfect for a contemporary-style performance."

Name Meaning Age / Time Size (Length) Weight Author Where Found Zoey & Dawn's Comments

Dracopelta zbyszewskii Dragon Shield Late Jurassic 2 m (6.6 ft) 300 kg Galton (1980) Portugal Dawn: "A 'Dragon Shield'? That sounds like a move a Gible would use! It’s small but looks super tough!"

Zoey: "The armor plating is very intricate. In a Contest, that 'Dragon' theme would be perfect for a Cool category appeal."

Edmontonia rugosidens From Edmonton / Wrinkled Tooth Late Cretaceous 6 m (20 ft) 3 tons Gilmore (1930) Canada / USA Dawn: "It has giant spikes sticking out from its shoulders! It’s like it’s wearing football pads made of iron!"

Zoey: "Those forward-pointing spikes are very aggressive. Using 'Iron Defense' would make it look like an immovable fortress."

Gastonia lorriemcwhinneyae Gaston’s Lizard Early Cretaceous 5 m (16 ft) 1.9 tons Kirkland (1998) USA (Utah) Dawn: "Look at all those jagged plates! It looks like a giant, walking pinecone. No need to worry, it’s just well-protected!"

Zoey: "It has 'scissor-like' spikes on its tail. A 'Tail Whip' appeal with those would be incredibly dramatic and sharp."

Hylaeosaurus armatus Forest Lizard Early Cretaceous 5 m (16 ft) 2 tons Mantell (1833) England Dawn: "A forest friend! It probably loves hiding in the tall grass near Eterna City. It’s one of the first dinosaurs found!"

Zoey: "As one of the original 'Big Three,' it has a classic, dignified presence. Perfect for a Smart category performance."

Nodosaurus textilis Knobbed Lizard / Woven Late Cretaceous 4-6 m (15-20 ft) 3.5 tons Marsh (1889) USA (Wyoming/Kansas) Dawn: "The 'Woven Lizard'! Its armor looks like a beautiful pattern on a scarf. It’s so fashionable!"

Zoey: "No tail club here—it’s all about the 'Beauty' of the armor. The pebbly texture would look great under a spotlight."

Panoplosaurus mirus Completely Armored Lizard Late Cretaceous 5-7 m (16-23 ft) 3.5 tons Lambe (1919) Canada / USA Dawn: "It’s like a tank! It looks so heavy and strong, even a Meteor Mash wouldn't leave a scratch!"

Zoey: "It has very wide, heavy plates on its neck. It carries itself with the poise of a heavyweight champion."

Polacanthus foxii Many Spikes Early Cretaceous 5 m (16 ft) 2 tons Owen (1865) England Dawn: "Many spikes is right! It has a big flat shield over its hips—it’s like it’s wearing a sparkly belt!"

Zoey: "That sacral shield is its best feature. A Coordinator could decorate those plates to make a truly unique entrance."

Sauroplites scutiger Lizard Hoplite (Shield Bearer) Early Cretaceous 6 m (20 ft) 3 tons Bohlin (1953) China Dawn: "A shield bearer? It’s like a knight in shining armor! It’s ready to protect its friends no matter what!"

Zoey: "The name fits its 'Tough' profile. Its armor is built for endurance, which is key for long battle rounds."

Silvisaurus condrayi Forest Lizard Early Cretaceous 4 m (13 ft) 1 ton Eaton (1960) USA (Kansas) Dawn: "It has a very simple look, but it’s still so cute! Like an Aron that hasn't evolved yet!"

Zoey: "It actually has teeth in the front of its beak, which is rare for these guys. That's a 'Smart' detail for the judges."

Struthiosaurus transilvanicus Ostrich Lizard Late Cretaceous 2-3 m (6-10 ft) 300 kg Nopcsa (1915) Romania Dawn: "A tiny 'Ostrich Lizard'? But it’s covered in armor! It’s like a little shielded bird that can't fly!"

Zoey: "It’s an island dwarf species. Its small size makes it much more agile than its giant cousins—great for a 'Cute' appeal."

Name Meaning Age / Time Size (Length) Weight Author Where Found Zoey & Dawn's Comments

Ankylosaurus magniventris Fused Lizard with a Great Belly Late Cretaceous 8 m (26 ft) 5–8 tons Brown (1908) North America Dawn: "Talk about a powerhouse! It's like a giant Torterra with a wrecking ball for a tail! No need to worry, just stay clear of that swing!"

Zoey: "The ultimate 'Tough' category winner. That tail club is the perfect tool for a high-impact 'Iron Tail' finishing move."

Euoplocephalus tutus Well-Armored Head Late Cretaceous 5.5 m (18 ft) 2–3 tons Lambe (1902) North America Dawn: "Even its eyelids were armored! It’s like it’s wearing protective goggles for a sandstorm! So smart!"

Zoey: "A very balanced silhouette. Its wide body and low center of gravity make it look immovable and dignified on stage."

Minotaurasaurus ramachandrani Minotaur Lizard Late Cretaceous 4.2 m (14 ft) 600 kg Miles & Miles (2009) Mongolia / China Dawn: "A Minotaur! It has those big bull horns on its head—it looks like a prehistoric Tauros wearing a suit of armor!"

Zoey: "Those head spikes are very dramatic. A 'Cool' appeal focusing on its charging profile would definitely wow the crowd."

Pinacosaurus grangeri Plank Lizard Late Cretaceous 5 m (16 ft) 1.9 tons Gilmore (1933) Mongolia / China Dawn: "It’s so slender for an ankylosaur! It looks like it could be really fast, like a prehistoric Sandslash!"

Zoey: "It has extra holes in its nose for cooling down. That's a 'Smart' feature to highlight during a specialized performance."

Saichania chulsanensis Beautiful One Late Cretaceous 5.2 m (17 ft) 2 tons Maryańska (1977) Mongolia Dawn: "The 'Beautiful One'? The name says it all! Even with all that armor, it has a totally 'Beauty' style vibe!"

Zoey: "It has very complex armor patterns. Catching the stage lights on those studs would create a gorgeous glittering effect."

Scolosaurus thronus Pointed Stake Lizard Late Cretaceous 5 m (16 ft) 2 tons Lambe (1919) North America Dawn: "It’s covered in little stakes! It’s like a giant version of a Ferroseed. I bet it’s a master of 'Spiky Shield'!"

Zoey: "The spikes are long and sharp. It’s a very edgy, 'Cool' look that makes it stand out from the smoother armored types."

Talarurus plicatospineus Basket Tail Late Cretaceous 5 m (16 ft) 2 tons Maleev (1952) Mongolia Dawn: "A basket tail! I wonder if it uses it to carry berries like a Greedent? It looks so helpful!"

Zoey: "The tail is very stiff and reinforced. Using it to vault or prop itself up would be a very creative 'Smart' appeal."

Tarchia teresae Brainy One Late Cretaceous 8 m (26 ft) 4.5 tons Maryańska (1977) Mongolia Dawn: "The 'Brainy One'! It’s like the Alakazam of armored dinosaurs! I bet it knows exactly how to win a Ribbon!"

Zoey: "It was the largest of the Asian ankylosaurids. It has a massive, intelligent-looking head that scores high in 'Smart' contests."

Name Meaning Age / Time Size (Length) Weight Author Where Found Zoey & Dawn's Comments

Cynognathus crateronotus Dog Jaw Early-Middle Triassic 1.2–2 m (6.6 ft) 30–50 kg Seeley (1894) South Africa / Argentina Dawn: "It looks like a mix between a Flareon and a Feraligatr! It’s so fuzzy but has those big lizard teeth. No need to worry, it’s kind of cute!"

Zoey: "It’s a very early relative of ours. That powerful jaw and fur-like coat make it a top contender for a 'Tough' and 'Cool' hybrid appeal."

Dicynodon lacerticeps Two Dog Teeth Late Permian 1.2 m (4 ft) 10–20 kg Owen (1845) South Africa / Russia Dawn: "A turtle-dog! It has a beak and two little tusks just like a Shieldon! I bet it’s great at digging for buried treasure."

Zoey: "The tusks are a great visual focal point. A 'Smart' category appeal focusing on its herbivore lifestyle would be very elegant."

Dimetrodon grandis Two Measures of Teeth Early Permian 3–4 m (13 ft) 250 kg Cope (1878) USA (Texas/Oklahoma) Dawn: "Everyone thinks it’s a dinosaur, but it’s actually more like us! That sail is so flashy—it’s like a built-in stage prop!"

Zoey: "The sail was for temperature control, but on stage, it’s a masterpiece. Using 'Sunny Day' to make that sail glow would be a perfect 10."

Edaphosaurus pogonias Pavement Lizard Early Permian 3–3.5 m (11 ft) 300 kg Cope (1882) USA / Europe Dawn: "Another sail-back! This one has little crossbars on its spines—it looks like a tiny, walking ship! How whimsical!"

Zoey: "It’s a herbivore, so it has a much gentler presence. It’s a 'Beauty' category pick for sure."

Gorgonops torvus Gorgon Face Late Permian 2–3 m (10 ft) 150 kg Owen (1876) South Africa Dawn: "Yikes! Those saber-teeth are even bigger than a Weavile’s! It looks like the boss of the whole Permian arena!"

Zoey: "This is a pure 'Cool' category performer. Its sleek body and massive fangs create an intimidating and powerful silhouette."

Inostrancevia alexandri Named after P. Inostrantsev Late Permian 3.5 m (11.5 ft) 300 kg Amalitsky (1922) Russia Dawn: "The biggest of the 'Gorgons'! It’s like a sabertooth tiger that decided to stay a reptile. So fierce!"

Zoey: "Its movements would be very cat-like. A 'Quick Attack' followed by a 'Bite' appeal would be high-impact and dramatic."

Lystrosaurus murrayi Shovel Lizard Late Permian - Early Triassic 1 m (3.3 ft) 50–90 kg Owen (1859) Antarctica / India / Africa Dawn: "A shovel lizard! It probably helped clear the snow in Snowpoint City! It looks like a very hard worker."

Zoey: "It survived the biggest extinction ever. That 'Sturdy' spirit is exactly what a Coordinator looks for in a partner."

Moschops capensis Calf Face Middle Permian 2.7 m (9 ft) 1 ton Broom (1911) South Africa Dawn: "It has such a thick head! It looks like it wants to play 'Headbutt' all day. No need to worry, it looks friendly!"

Zoey: "It was the heavyweight of its time. Its thick skull was for social displays—a 'Smart' way to show off strength."

Thrinaxodon liorhinus Trident Tooth Early Triassic 0.5 m (1.6 ft) 1–3 kg Seeley (1894) South Africa / Antarctica Dawn: "It’s so tiny! It looks like a little Eevee with whiskers. I bet it feels so soft and warm!"

Zoey: "It had pits for whiskers, which is a very mammal-like trait. It would be the star of the 'Cute' category for sure."

Name Meaning Age / Time Size (Length) Weight Author Where Found Zoey & Dawn's Comments

Aepyornis maximus Tall Bird Holocene (Extinct ~1000 AD) 3 m (10 ft) tall 730 kg Geoffroy Saint-Hilaire (1851) Madagascar Dawn: "An egg from this bird could feed a whole village! It’s like a giant, fluffy Doduo that lost its second head!"

Zoey: "It’s the ultimate heavyweight bird. A 'Stomp' appeal with those massive legs would be incredibly powerful."

Confuciusornis sanctus Confucius Bird Early Cretaceous 0.5 m (1.6 ft) 0.5 kg Hou et al. (1995) China Dawn: "Those two long tail feathers are so elegant! It looks like a prehistoric Swanna ready for the Grand Festival!"

Zoey: "It's the first bird with a beak! That sleek profile and those ribbons make it a 'Beauty' category masterpiece."

Dinornis novaezealandiae Terrible Bird Holocene (Extinct ~1445 AD) 3.6 m (12 ft) tall 230 kg Owen (1843) New Zealand Dawn: "It’s so tall! I’d need a ladder just to give it a Poffin! No need to worry, it’s just a giant forest friend."

Zoey: "The Giant Moa has such a regal neck. It would command the stage with the grace of a Serperior."

Gastornis parisiensis Gaston's Bird Paleocene - Eocene 2 m (6.6 ft) 175 kg Hébert (1855) Europe / North America Dawn: "That beak is huge! It looks like a Chatot that spent too much time at the gym. It’s a little scary but cool!"

Zoey: "It was a top predator of its time. A 'Crush Claw' or 'Sky Drop' style performance would show off its raw power."

Hesperornis regalis Western Bird Late Cretaceous 1.8 m (6 ft) 15 kg Marsh (1872) USA / Canada Dawn: "A bird with teeth that swims like a penguin? It’s like a mix between an Empoleon and a Remoraid!"

Zoey: "It’s a specialized diver. Watching it navigate a water-type stage with those powerful feet would be mesmerizing."

Ichthyornis dispar Fish Bird Late Cretaceous 24 cm (tail to beak) 0.5 kg Marsh (1872) USA (Kansas) Dawn: "It looks just like a Wingull! I bet it’s great at snatching treats right out of the air!"

Zoey: "It’s a very modern-looking bird for the age of dinosaurs. Its agility in flight makes it perfect for 'Aereal Ace' appeals."

Phorusrhacos longissimus Rag-Bearer / Branch-Lopper Miocene 2.5 m (8 ft) 130 kg Ameghino (1887) Argentina Dawn: "A 'Terror Bird'? That’s a spooky name! It looks like a Blaziken that’s really, really fast!"

Zoey: "Those hooked beaks are no joke. In a 'Cool' category contest, its predatory gaze would score maximum points."

Vegavis iaai Vega Island Bird Late Cretaceous 0.6 m (2 ft) 2 kg Noriega & Tambussi (1995) Antarctica Dawn: "A prehistoric duck from Antarctica? It’s a little Ducklett that loves the snow! So cute!"

Zoey: "It’s proof that modern bird groups were around with T-Rex. It has a very 'Smart' and classic waterfowl silhouette."

Name Meaning Age / Time Size (Length/Height) Weight Author Where Found Zoey & Dawn's Comments

Coelodonta antiquitatis Hollow Tooth of Antiquity Late Pleistocene 3–3.8 m (10–12.5 ft) long 1.8–2.7 tons Blumenbach (1799) Europe & Northern Asia Dawn: "It’s a Woolly Rhino! It looks like a Rhyhorn wearing a thick, shaggy coat. No need to worry, it’s just a fuzzy tank!"

Zoey: "Those two horns are perfect for a 'Smart' display of strength. It would be a powerful, grounded presence on any stage."

Glyptodon clavipes Carved Tooth / Club Foot Pleistocene - Holocene 3.3 m (11 ft) long 2 tons Owen (1839) South America Dawn: "It looks like a giant, armored Poffin! No wait, it’s a giant armadillo! It’s even bigger than a car!"

Zoey: "The intricate patterns on its dome-like shell are a masterpiece. In a 'Beauty' contest, it would be the ultimate showpiece."

Mammuthus primigenius First Elephant (First-born) Late Pleistocene - Holocene 2.7–3.4 m (9–11 ft) tall 4–6 tons Blumenbach (1799) Eurasia & North America Dawn: "The Woolly Mammoth! It’s the king of the ice! I bet it could use 'Blizzard' and make the whole arena sparkle!"

Zoey: "Commanding and regal. Its massive tusks are the definition of 'Tough' category greatness."

Megaloceros giganteus Giant Great Horn Late Pleistocene - Holocene 2.1 m (7 ft) at shoulder 540–700 kg Blumenbach (1799) Eurasia Dawn: "The Irish Elk! Those antlers are bigger than me! It looks so elegant, like a Sawsbuck in its Winter form."

Zoey: "Those antlers have a 12-foot span. It would win the 'Beauty' category just by walking through the door."

Megatherium americanum Giant Beast from America Pliocene - Holocene 6 m (20 ft) long 4 tons Cuvier (1796) South America Dawn: "A giant ground sloth! It's so big it can stand up and reach the highest trees. No need to worry, it looks like a slow friend!"

Zoey: "It stands on its hind legs to command the stage. Its massive claws are perfect for a 'Tough' or 'Cool' appeal."

Smilodon fatalis Knife Tooth / Fatal Pleistocene - Holocene 1 m (3.3 ft) at shoulder 160–280 kg Leidy (1869) North America Dawn: "A Saber-toothed Cat! Those fangs are incredible! It reminds me of a fierce Raikou without the lightning."

Zoey: "The quintessential 'Cool' category performer. Its powerful build and iconic teeth make it a legendary stage partner."

Ursus spelaeus Cave Bear Late Pleistocene 3.5 m (11.5 ft) tall (standing) 350–600 kg Rosenmüller (1794) Europe Dawn: "It lived in caves? It must be like a giant Ursaring that loves the winter! I want to see it do a 'Rest' appeal!"

Zoey: "A massive, powerful silhouette. It’s got a 'Tough' presence that would dominate any battle round."

Name Meaning Age / Time Size (Height) Weight Author Where Found Zoey & Dawn's Comments

Sahelanthropus tchadensis Sahel Human from Chad Late Miocene (7–6 MYA) 1–1.2 m (3.3–4 ft) 35 kg Brunet et al. (2002) Chad (Africa) Dawn: "Wait, it's one of the oldest relatives? It's so small! It looks like a little Mankey that hasn't started training yet."

Zoey: "The position of its head suggests it stood upright. That's a very 'Smart' way to gain a new perspective on stage."

Ardipithecus ramidus Root Ground Ape Early Pliocene (4.4 MYA) 1.2 m (4 ft) 50 kg White et al. (1994) Ethiopia (Africa) Dawn: "It could walk on the ground and climb trees! It’s like a real-life Aipom! No need to worry about it being clumsy!"

Zoey: "Having grasping feet is a huge advantage for acrobatic appeals. It would be very graceful on a jungle-themed stage."

Australopithecus afarensis Southern Ape from Afar Pliocene (3.9–2.9 MYA) 1–1.5 m (3.3–5 ft) 30–45 kg Johanson et al. (1978) Ethiopia/Tanzania Dawn: "The most famous one—Lucy! She’s like a legendary ancestor for all people. I bet she was a real trendsetter!"

Zoey: "Total stability on two legs. Using 'High Jump' or 'Double Team' with that bipedal stance would be a total classic."

Paranthropus boisei Beside Human (Nutcracker Man) Pleistocene (2.3–1.2 MYA) 1.2–1.4 m (4–4.5 ft) 34–49 kg Leakey (1959) East Africa Dawn: "Look at those big jaws! It’s called the Nutcracker? It could probably munch through a whole bag of hard Poffins!"

Zoey: "The crest on its head is for massive chewing muscles. It’s the ultimate 'Tough' category pick for a physical appeal."

Homo habilis Handy Man Pleistocene (2.4–1.4 MYA) 1–1.35 m (3.3–4.5 ft) 32 kg Leakey et al. (1964) Tanzania/Kenya Dawn: "Handy Man? It's a tool-maker! Maybe it could help me craft some new accessories for my Poké Balls!"

Zoey: "Intelligence is its best move. A Coordinator with a 'Handy' partner could create amazing custom props for the stage."

Homo erectus Upright Man Pleistocene (1.9 MYA – 110k YA) 1.4–1.8 m (4.7–6 ft) 40–68 kg Dubois (1894) Africa/Asia/Europe Dawn: "It looks almost like us! And it used fire? That’s definitely a 'Fire-type' spirit right there! So flashy!"

Zoey: "It was a great long-distance runner. An endurance performance across the whole arena would be its specialty."

Homo neanderthalensis Human from Neander Valley Pleistocene (400k – 40k YA) 1.5–1.6 m (5–5.5 ft) 64–76 kg King (1864) Europe/Western Asia Dawn: "It looks so strong and sturdy! It’s like a middle-evolution between the past and now. No need to worry, it’s tough!"

Zoey: "Built for the cold. A 'Blizzard' or 'Ice Beam' themed appeal would suit its rugged, powerful silhouette perfectly."

Homo sapiens Wise Man Pleistocene to Present 1.5–1.9 m (5–6.2 ft) 50–90 kg Linnaeus (1758) Worldwide Dawn: "That's us! We're the 'Wise' ones! And with our Pokémon partners, we're definitely going to win the Grand Festival!"

Zoey: "The ultimate versatile performer. Our ability to plan, adapt, and create is what makes a Top Coordinator."

Origin of Dinosaurs and Pterosaurs

Pterosauria – Lords of the Ancient Skies: Chart Table

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

Theropoda – The Predatory Elite: Chart Table

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

Sauropodomorpha – The Gentle Giants: Chart Table

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

Cerapoda – Beaked, Horned, and Armored: Chart Table

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

Thyreophora – The Armored Tanks: Chart Table

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

Dinosaur and Pterosaur Classification Table

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

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

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.

Here are the formatted data charts for your requested Saurischia dinosaurs. To keep this massive dataset legible and clean, the list is broken down into structured tables categorized by their respective evolutionary orders.

Fictional/crossover entries from your list (Smurfette smurfensis from The Smurfs) and pop-culture/art-themed elements (Zoe DaVinci from the animated series The DaVincibles) have been given matching fan-fiction style entries to fit the context!

🦕 Order Herrerasauria

Genus & Species	Diet	Habitat	Era / Age / Time	Dimensions & Weight	Dig Sites / Found	Comments / Zoe's Comments
**Herrerasaurus ischigualastensis**	Carnivore	Floodplains, forests	Mesozoic / Late Triassic / ~230–220 MYA	H: 1.5 m L: 3.5–6 m W: 350 kg	Ischigualasto Formation, San Juan, Argentina	One of the earliest known true dinosaurs; highly agile predator. Zoe: "An absolute masterpiece of early bipedal engineering! Simple, clean design."
**Staurikosaurus pricei**	Carnivore	Tropical scrublands	Mesozoic / Late Triassic / ~233 MYA	H: 0.8 m L: 2.2 m W: 30 kg	Santa Maria Formation, Rio Grande do Sul, Brazil	Slender, fast hunter with a deeply slotted jaw to grip struggling prey. Zoe: "A minimalist sketch of a theropod. Sleek, fast, and completely unpretentious."

🦖 Order Ceratosauria

Genus & Species	Diet	Habitat	Era / Age / Time	Dimensions & Weight	Dig Sites / Found	Comments / Zoe's Comments
**Abelisaurus comahuensis**	Carnivore	Semi-arid plains	Mesozoic / Late Cretaceous / ~83–80 MYA	H: 2.5 m L: 7.4 m W: 1.5–3 tons	Anacleto Formation, Río Negro, Argentina	Known mostly from a single large skull with high crests and rough bone texture. Zoe: "The textures on that skull are so rugged! It's like a rough plaster sculpture."
**Carnotaurus sastrei**	Carnivore	Coastal wetlands	Mesozoic / Late Cretaceous / ~72–69 MYA	H: 3.0 m L: 7.5–9 m W: 1.3–2 tons	La Colonia Formation, Chubut, Argentina	Distinct bull-like horns above eyes and exceptionally stunted, useless arms. Zoe: "Those tiny arms are a major design flaw, but the horns are high fashion!"
**Ceratosaurus nasicornis**	Carnivore	Forested river valleys	Mesozoic / Late Jurassic / ~153–148 MYA	H: 2.0 m L: 6–7 m W: 500–700 kg	Morrison Formation, Colorado/Utah, USA	Notable for a distinct nasal horn and small osteoderm rows down its spine. Zoe: "A nasal horn? Now that is a bold architectural statement for a carnivore."
**Coelophysis bauri**	Carnivore	Desert floodplains	Mesozoic / Late Triassic / ~216–203 MYA	H: 0.9 m L: 3 m W: 15–25 kg	Ghost Ranch, New Mexico, USA	Hundreds of skeletons found together, proving structured pack behavior. Zoe: "The perfect symmetrical composition when they crowd together like that!"
**Dilophosaurus wetherilli**	Carnivore	Seasonal river basins	Mesozoic / Early Jurassic / ~193 MYA	H: 2.0 m L: 6–7 m W: 400 kg	Kayenta Formation, Arizona, USA	Possessed dual thin, bony head crests. (Did not spit venom or have a neck frill). Zoe: "Those double crests have amazing geometry. Real visual symmetry."
**Liliensternus liliensterni**	Carnivore	Coastal floodplains	Mesozoic / Late Triassic / ~211 MYA	H: 1.8 m L: 5.1 m W: 130 kg	Trossingen Formation, Thuringia, Germany	Transitional apex predator filling the evolutionary gap after the Triassic extinction. Zoe: "A beautiful bridge between classic Triassic shapes and Jurassic scale."

🪶 Order Coelurosauria

Genus & Species	Diet	Habitat	Era / Age / Time	Dimensions & Weight	Dig Sites / Found	Comments / Zoe's Comments
**Avimimus nemegtensis**	Omnivore	Arid basin oases	Mesozoic / Late Cretaceous / ~70 MYA	H: 1.0 m L: 1.5 m W: 15 kg	Nemegt Formation, Gobi Desert, Mongolia	Extremely bird-like features with fused leg bones and highly probable arm feathers. Zoe: "Practically an avant-garde bird! The feather patterns are pure art."
**Compsognathus longipes**	Carnivore	Dry lagoons, islands	Mesozoic / Late Jurassic / ~150 MYA	H: 0.3 m L: 1.0 m W: 2.5–3.5 kg	Solnhofen Limestone, Bavaria, Germany	Tiny, hyper-active predator that specialized in hunting lizards and insects. Zoe: "A delicate little pocket sculpture. So tiny yet full of fierce energy!"
**Moros intrepidus**	Carnivore	Coastal deltas	Mesozoic / Late Cretaceous / ~96 MYA	H: 1.2 m L: 2.5 m W: 78 kg	Cedar Mountain Formation, Utah, USA	A tiny, cursorial precursor to the massive tyrannosaurids of North America. Zoe: "The humble origin sketch of the T-Rex line. Good things start small!"
**Ornitholestes hermanni**	Carnivore	Dense inland forests	Mesozoic / Late Jurassic / ~154 MYA	H: 0.8 m L: 2 m W: 12–15 kg	Bone Cabin Quarry, Wyoming, USA	Fast runner with elongated claws designed to snatch up small woodland prey. Zoe: "Its proportions look like a continuous, elegant sweeping line brushstroke."

🥚 Order Oviraptorosauria

Genus & Species	Diet	Habitat	Era / Age / Time	Dimensions & Weight	Dig Sites / Found	Comments / Zoe's Comments
**Chirostenotes pergracilis**	Omnivore	Coastal floodplains	Mesozoic / Late Cretaceous / ~76.5 MYA	H: 1.5 m L: 2.5 m W: 60 kg	Dinosaur Park Formation, Alberta, Canada	Known for long, slender hands and an unusually elongated second finger trait. Zoe: "Look at those hands—delicate and expressive, like a Renaissance pianist!"
**Conchoraptor gracilis**	Omnivore	Arid sand dunes	Mesozoic / Late Cretaceous / ~70 MYA	H: 0.8 m L: 1.5 m W: 20 kg	Barun Goyot Formation, Gobi Desert, Mongolia	Lacked a head crest entirely; possesses a powerful beak likely used to crush shells. Zoe: "Minimalist and practical. No flashy headgear needed to make a statement."
**Elmisaurus rarus**	Omnivore	River delta basins	Mesozoic / Late Cretaceous / ~70 MYA	H: 0.8 m L: 2 m W: 25 kg	Nemegt Formation, Omnogovi, Mongolia	Highly specialized feet with fused ankle bones akin to modern flightless birds. Zoe: "The abstract blending of bird aesthetics and reptile kinetics is fantastic."
**Oviraptor philoceratops**	Omnivore	Arid scrub deserts	Mesozoic / Late Cretaceous / ~75 MYA	H: 1.3 m L: 2 m W: 35–45 kg	Djadochta Formation, Gobi Desert, Mongolia	Falsely named an "egg thief" when found atop a nest that actually belonged to it. Zoe: "Tragic! Misunderstood by critics just because of bad composition placement."

🏃 Order Ornithomimosauria

Genus & Species	Diet	Habitat	Era / Age / Time	Dimensions & Weight	Dig Sites / Found	Comments / Zoe's Comments
**Deinocheirus mirificus**	Herbivore / Omnivore	Swamps, deltas	Mesozoic / Late Cretaceous / ~70 MYA	H: 6.0 m L: 15 m W: 6.4 tons	Nemegt Formation, Gobi Desert, Mongolia	Possessed massive 2.4-meter arms, a prominent sail-back, and a duck-like beak. Zoe: "An absolute surrealist collage of a dinosaur! Dalí would be totally obsessed."
**Dromiceiomimus samueli**	Herbivore / Omnivore	Open floodplains	Mesozoic / Late Cretaceous / ~73 MYA	H: 1.6 m L: 3.5 m W: 100–150 kg	Horseshoe Canyon Fm, Alberta, Canada	Noted for massive eye sockets and extremely long, slender hind limbs. Zoe: "The giant eyes give it fantastic focus. It looks like it's studying my artwork."
**Gallimimus bullatus**	Herbivore / Omnivore	Semi-arid plains	Mesozoic / Late Cretaceous / ~70 MYA	H: 2.0 m L: 6–8 m W: 450 kg	Nemegt Formation, Gobi Desert, Mongolia	The largest of the classic "ostrich-mimic" dinosaurs, built for high-speed sprints. Zoe: "The ultimate embodiment of motion in art. A blurry masterpiece when running."
**Ornithomimus velox**	Herbivore / Omnivore	Forested coastlines	Mesozoic / Late Cretaceous / ~66 MYA	H: 1.5 m L: 3.8 m W: 170 kg	Denver Formation, Colorado, USA	The very first ornithomimid ever discovered; toothless with bird-like feet. Zoe: "The original blueprint for the fast-running genre. Classic, crisp lines."
**Struthiomimus altus**	Herbivore / Omnivore	Inland marshes	Mesozoic / Late Cretaceous / ~76–74 MYA	H: 1.4 m L: 4.3 m W: 150 kg	Dinosaur Park Formation, Alberta, Canada	Boasts stiffened tail mechanics acting like a strict counterbalance during sharp turns. Zoe: "Perfect balance! The structural engineering of that tail keeps it centered."

💅 Order Therizinosauria

Genus & Species	Diet	Habitat	Era / Age / Time	Dimensions & Weight	Dig Sites / Found	Comments / Zoe's Comments
**Erlikosaurus andrewsi**	Herbivore	Floodplain forests	Mesozoic / Late Cretaceous / ~90 MYA	H: 2.2 m L: 6 m W: 500 kg	Bayan Shireh Formation, Gobi Desert, Mongolia	Retained tiny teeth inside its beak, aiding in resolving therizinosaur skull evolution. Zoe: "A beautiful mosaic skull that helps fill in the missing pieces of history."
**Segnosaurus galbinensis**	Herbivore	River delta valleys	Mesozoic / Late Cretaceous / ~102–86 MYA	H: 2.5 m L: 6–7 m W: 1.3 tons	Bayan Shireh Formation, Gobi Desert, Mongolia	Possessed an uniquely wide, basin-shaped pelvis to hold its massive gut. Zoe: "A very bold choice of volume and mass. It prioritizes function over form!"
**Therizinosaurus cheloniformis**	Herbivore	Wetland river systems	Mesozoic / Late Cretaceous / ~70 MYA	H: 5.5 m L: 9–10 m W: 5 tons	Nemegt Formation, Gobi Desert, Mongolia	Possessed terrifying 1-meter long scythe claws used for pulling down high branches. Zoe: "Those claws make an incredible dramatic statement. Gothic horror meets herbivore!"

🦅 Order Deinonychosauria

Genus & Species	Diet	Habitat	Era / Age / Time	Dimensions & Weight	Dig Sites / Found	Comments / Zoe's Comments
**Adasaurus mongoliensis**	Carnivore	Woodland oases	Mesozoic / Late Cretaceous / ~70 MYA	H: 0.8 m L: 1.8 m W: 15 kg	Nemegt Formation, Bayankhongor, Mongolia	Notable for having a significantly smaller, flattened sickle claw on its second toe. Zoe: "Subverting classic raptor expectations with an asymmetrical claw design!"
**Deinonychus antirrhopus**	Carnivore	Forested wetlands	Mesozoic / Early Cretaceous / ~115–108 MYA	H: 1.0 m L: 3.4 m W: 73–100 kg	Cloverly Formation, Montana/Wyoming, USA	The dinosaur that triggered the 'Dinosaur Renaissance' by proving high activity levels. Zoe: "A dynamic masterpiece. It completely redefined the posture of ancient history."
**Saurornitholestes sullivani**	Carnivore	Swampy floodplains	Mesozoic / Late Cretaceous / ~73 MYA	H: 0.6 m L: 1.8 m W: 10 kg	Kirtland Formation, New Mexico, USA	Outfitted with an exceptional sense of smell, indicated by expanded nasal cavities. Zoe: "Imagine experiencing the world through smell textures. Such sensory art!"
**Troodon formosus**	Omnivore	Sub-arctic forests	Mesozoic / Late Cretaceous / ~77 MYA	H: 1.0 m L: 2.4 m W: 50 kg	Judith River Formation, Montana, USA	Historically high brain-to-body mass ratio; large eyes suited for low-light hunting. Zoe: "The intellectual of the Mesozoic era. Intellectual design at its absolute finest."
**Velociraptor osmolskae**	Carnivore	Arid sand dunes	Mesozoic / Late Cretaceous / ~75–71 MYA	H: 0.5 m L: 2.0 m W: 15 kg	Djadochta Formation, Gobi Desert, Mongolia	Medium-sized dromaeosaur; found famously locked in a death duel with a Protoceratops. Zoe: "That fossilized battle is the most intense action sequence captured in stone!"

🦖 Order Carnosauria

Genus & Species	Diet	Habitat	Era / Age / Time	Dimensions & Weight	Dig Sites / Found	Comments / Zoe's Comments
**Albertosaurus sarcophagus**	Carnivore	Open canopy forests	Mesozoic / Late Cretaceous / ~71–68 MYA	H: 3.0 m L: 9 m W: 2–2.5 tons	Horseshoe Canyon Fm, Alberta, Canada	A slender, fast-running tyrannosaurid that likely hunted large prey in packs. Zoe: "A perfectly streamlined interpretation of the classic giant predator canvas."
**Allosaurus europaeus**	Carnivore	Floodplain savannas	Mesozoic / Late Jurassic / ~150 MYA	H: 4.5 m L: 12.5 m W: 6 tons	Lourinhã Formation, Lisbon, Portugal / Morrison Formation, New Mexico, USA	The European counterpart of the classic American 'Lion of the Jurassic'. Zoe: "An old-world European adaptation. Very classic, sharp structural contours."
**Baryonyx walkeri**	Piscivore / Carnivore	Swamps, estuaries	Mesozoic / Early Cretaceous / ~130–125 MYA	H: 2.5 m L: 7.5–10 m W: 1.2–2 tons	Weald Clay Structure, Surrey, England	Possessed a crocodile-like snout and a singular, massive hook claw on each thumb. Zoe: "The thematic maritime crossover nobody expected. Those thumb hooks are wild!"
**Daspletosaurus horneri**	Carnivore	Coastal deltas	Mesozoic / Late Cretaceous / ~75 MYA	H: 3.0 m L: 9 m W: 2.5–3 tons	Two Medicine Formation, Montana, USA	Stockier and more heavily built than its contemporary rival, Albertosaurus. Zoe: "Bold, heavy, contrasting lines. It exudes brute artistic force and presence."
**Giganotosaurus carolinii**	Carnivore	Semi-arid plains	Mesozoic / Late Cretaceous / ~98–96 MYA	H: 4.0 m L: 12–13 m W: 7–8 tons	Candeleros Formation, Neuquén, Argentina	One of the largest terrestrial predators to ever walk the earth, out-sizing T-Rex. Zoe: "An absolute mural of a dinosaur. Its grand scale completely dominates the room!"
**Metriacanthosaurus parkeri**	Carnivore	Coastal woodlands	Mesozoic / Late Jurassic / ~160 MYA	H: 2.2 m L: 8 m W: 1 ton	Oxford Clay Formation, Dorset, England	Named for its tall vertebral spines which formed a shallow ridge down its back. Zoe: "A subtle, geometric ridge accent along the spine. Very tasteful styling."
**Spinosaurus aegyptiacus**	Piscivore / Carnivore	Mangrove swamps	Mesozoic / Late Cretaceous / ~99–93 MYA	H: 4.5 m (at sail) L: 14 m W: 7.4 tons	Bahariya Formation, Western Desert, Egypt	Semi-aquatic specialist featuring a massive skin sail and dense bone ballasting. Zoe: "An incredible sail design! Splendid aquatic adaptation of the theropod silhouette."
**Tyrannosaurus rex**	Carnivore	Floodplains, valleys	Mesozoic / Late Cretaceous / ~68–66 MYA	H: 3.7–6 m L: 12–15 m W: 8–10.5 tons	Hell Creek Formation, Montana/Dakota, USA	Possessed the strongest calculated bite force of any terrestrial creature in history. Zoe: "The undisputed masterpiece of evolutionary power. The crown jewel of scales!"
**Yangchuanosaurus zigongensis**	Carnivore	Dense river basins	Mesozoic / Middle Jurassic / ~165 MYA	H: 2.5 m L: 8 m W: 1.3 tons	Xiashaximiao Formation, Sichuan, China	Possessed complex, bumpy ridges on its snout used for species identification. Zoe: "Intricate, stylized facial contours. It gives the snout an artistic texture accent."

🥬 Order Prosauropods

Genus & Species	Diet	Habitat	Era / Age / Time	Dimensions & Weight	Dig Sites / Found	Comments / Zoe's Comments
**Anchisaurus polyzelus**	Herbivore	Arid river valleys	Mesozoic / Early Jurassic / ~195 MYA	H: 0.6 m L: 2 m W: 27 kg	Portland Formation, Connecticut, USA	Early bipedal/quadrupedal generalist found with highly primitive chewing features. Zoe: "A dainty, delicate study in transition. It's a sketch of what's yet to come."
**Massospondylus kaalae**	Herbivore	Desert plains	Mesozoic / Early Jurassic / ~200–183 MYA	H: 1.2 m L: 4–6 m W: 1 ton	Upper Elliot Formation, Free State, South Africa	Noted for fossilized nests containing delicate, completely toothless dinosaur embryos. Zoe: "The tiny hatchling fossils are modeled like cute little clay figurines."
**Melanorosaurus readi**	Herbivore	Seasonal mudflats	Mesozoic / Late Triassic / ~215 MYA	H: 2.2 m L: 8 m W: 1.3 tons	Lower Elliot Formation, Eastern Cape, South Africa	One of the earliest prosauropods to fully commit to a heavy four-legged stance. Zoe: "Grounding the composition on all fours! A heavy, stable artistic foundation."
**Mussaurus patagonicus**	Herbivore	Volcanic canyons	Mesozoic / Late Triassic / ~215 MYA	H: 1.0 m L: 3–5 m W: 1 ton	El Tranquilo Formation, Santa Cruz, Argentina	Named "Mouse Lizard" because the very first specimens found were tiny hatchlings. Zoe: "A masterful use of scaling! From mouse-sized babies to elephantine adults."
**Plateosaurus gracilis**	Herbivore	Arid salt flats	Mesozoic / Late Triassic / ~214–204 MYA	H: 2.0 m L: 4.8–10 m W: 600 kg – 4 tons	Lowenstein Formation, Baden-Württemberg, Germany	A highly common Triassic herbivore capable of standing high on its rear legs. Zoe: "Excellent verticality! Reaching up high brings great dynamic posture to the pose."
**Riojasaurus incertus**	Herbivore	Semi-arid basins	Mesozoic / Late Triassic / ~221–210 MYA	H: 2.5 m L: 10 m W: 2–3 tons	Los Colorados Formation, La Rioja, Argentina	Heavily built with dense limb bones, entirely incapable of rearing onto hind legs. Zoe: "Very heavy structural brutalism. Sturdy, dense, and immovable design."
**Smurfette smurfensis** (Fictional Crossover)	Omnivore	Enchanted mushroom forests	Pop-Culture / Modern Animated Epoch	H: 0.15 m L: 0.1 m W: 250 g	Smurf Village Blue Clay Bed	A completely unique blue specimen mimicking prosauropod anatomy in miniature scale. Zoe: "The blue color scheme breaks reality, but the cartoon composition is iconic!"
**Thecodontosaurus antiquus**	Herbivore / Omnivore	Fissure fillings, islands	Mesozoic / Late Triassic / ~205 MYA	H: 0.4 m L: 1.2 m W: 11 kg	Magnesian Conglomerate, Bristol, England	A small, bipedal early dinosaur that lived on restricted, isolated prehistoric islands. Zoe: "An island-exclusive design. Small, compact, and perfectly self-contained."
**Yunnanosaurus youngi**	Herbivore	Subtropical plains	Mesozoic / Early Jurassic / ~190 MYA	H: 1.5 m L: 7 m W: 1 ton	Lufeng Formation, Yunnan Province, China	Evolved advanced, self-sharpening spoon-shaped teeth like true sauropods. Zoe: "Look at those spoon teeth—nature’s very own custom engraving chisels!"

🦕 Order Sauropods

Genus & Species	Diet	Habitat	Era / Age / Time	Dimensions & Weight	Dig Sites / Found	Comments / Zoe's Comments
**Apatosaurus ajax**	Herbivore	Open floodplains	Mesozoic / Late Jurassic / ~152–151 MYA	H: 7.5 m (hip) L: 21–25 m W: 16–22 tons	Morrison Formation, Colorado, USA	Famously stocky with a deeply robust neck and a whip-like tail tip defense. Zoe: "A powerful sweeping curve from nose to tail. A true masterclass in line weight."
**Brachiosaurus altithorax**	Herbivore	Forested river valleys	Mesozoic / Late Jurassic / ~154–153 MYA	H: 12–18 m L: 18–30 m W: 28–60 tons	Morrison Formation, Colorado, USA / Kota Formation, Telangana, India	Built with elongated forelimbs causing its back to slope down like a giraffe. Zoe: "Incredible upward perspective! It draws the viewer’s eye right up to the clouds."
**Camarasaurus supremus**	Herbivore	Savanna woodlands	Mesozoic / Late Jurassic / ~155–145 MYA	H: 9.0 m L: 15–18 m W: 15–20 tons	Morrison Formation, Colorado, USA	Highly common sauropod featuring hollowed-out skull windows to save weight. Zoe: "Fantastic utilization of negative space! The skeleton is practically hollow frame art."
**Diplodocus hallorum**	Herbivore	Open fern prairies	Mesozoic / Late Jurassic / ~154–152 MYA	H: 6.0 m (hip) L: 29–33 m W: 12–15 tons	Morrison Formation, New Mexico, USA	Extreme length profile with a highly elongated neck and matching endless tail. Zoe: "An extraordinarily long horizontal canvas. Panoramic composition at its peak!"
**Dreadnoughtus schrani**	Herbivore	Coastal plain forests	Mesozoic / Late Cretaceous / ~77 MYA	H: 18.7 m L: 26 m W: 49–59 tons	Cerro Fortaleza Formation, Santa Cruz, Argentina	One of the most complete gigantic titanosaur skeletons ever unearthed by science. Zoe: "The absolute definition of scale. Standing next to it makes everything feel tiny."
**Mamenchisaurus sinocanadorum**	Herbivore	Lake basin forests	Mesozoic / Late Jurassic / ~160–157 MYA	H: 17.0 m L: 26–35 m W: 60–75 tons	Shishugou Formation, Xinjiang, China	Held the absolute record for neck length, measuring up to 15 meters on its own. Zoe: "That neck line just keeps going and going! Exaggerated proportions done right."
**Omeisaurus fuxiensis**	Herbivore	Dense river deltas	Mesozoic / Middle Jurassic / ~165–160 MYA	H: 4.0 m (hip) L: 15–20 m W: 10–15 tons	Shaximiao Formation, Sichuan, China	Some specimens were discovered with unique bony tail clubs for self-defense. Zoe: "A sudden unexpected heavy prop added to the tail tip. Dynamic design!"
**Opisthocoelicaudia skarzynskii**	Herbivore	Inland delta systems	Mesozoic / Late Cretaceous / ~70 MYA	H: 3.5 m (hip) L: 11–13 m W: 8.5–10 tons	Nemegt Formation, Gobi Desert, Mongolia	Discovered completely lacking a skull; back vertebrae have backwards-facing sockets. Zoe: "An abstract mystery! A sculpture missing its focal point skull piece."
**Patagotitan mayorum**	Herbivore	Patagonian floodplains	Mesozoic / Middle Cretaceous / ~101 MYA	H: 13.0 m L: 37 m W: 55–69 tons	Cerro Barcino Formation, Chubut, Argentina	A serious contender for the largest, heaviest land animal in Earth's history. Zoe: "A breathtaking monolith of nature. It redefines the concept of pure volume!"
**Saltasaurus loricatus**	Herbivore	Semi-arid scrublands	Mesozoic / Late Cretaceous / ~70 MYA	H: 2.5 m (hip) L: 8.5 m W: 2.5 tons	Lecho Formation, Salta Province, Argentina	The very first sauropod discovered with armored bone osteoderm plates on its hide. Zoe: "Sauropod mass combined with armor-plated textures. A beautiful mosaic look!"
**Supersaurus vivianae**	Herbivore	River valley channels	Mesozoic / Late Jurassic / ~153 MYA	H: 22.0 m L: 39–42 m W: 35–40 tons	Morrison Formation, Colorado, USA	Consistently ranks as potentially the longest verifiable dinosaur from North America. Zoe: "The ultimate linear gesture. It pushes the boundaries of canvas length!"

Here are the formatted data charts for the Ornithischia (beaked, plant-eating) dinosaurs from your list. Following the same layout, the entries are split into structured tables by their orders and clades, including customized DaVincibles-style artistic feedback from Zoe DaVinci!

🦴 Ancestral Ornithischia

Genus & Species	Diet	Habitat	Era / Age / Time	Dimensions & Weight	Dig Sites / Found	Comments / Zoe's Comments
**Lesothosaurus diagnosticus**	Herbivore	Arid floodplains	Mesozoic / Early Jurassic / ~200–190 MYA	H: 0.4 m L: 2.0 m W: 6–10 kg	Upper Elliot Formation, Lesotho & South Africa	A small, fleet-footed lizard-like biped representing the foundational layout of ornithischian anatomy. Zoe: "A very clean, simple pencil sketch of a design. It lays down the basic guidelines perfectly!"
**Pisanosaurus mertii**	Herbivore	Tropical floodplains	Mesozoic / Late Triassic / ~228 MYA	H: 0.3 m L: 1.0 m W: 3–5 kg	Ischigualasto Formation, San Juan, Argentina	Highly controversial classification; long thought to be the earliest ornithischian, now often seen as a silesaurid. Zoe: "Abstract and mysterious! A piece that keeps the critics arguing for centuries."

📐 Order Ornithopoda

Genus & Species	Diet	Habitat	Era / Age / Time	Dimensions & Weight	Dig Sites / Found	Comments / Zoe's Comments
**Camptosaurus dispar**	Herbivore	Forested river valleys	Mesozoic / Late Jurassic / ~156–152 MYA	H: 2.0 m L: 6.0 m W: 800 kg	Morrison Formation, Wyoming/Utah, USA	Heavily built ornithopod capable of switching effortlessly between two-legged and four-legged postures. Zoe: "Brilliant kinetic versatility! It can shift its entire composition on the fly."
**Dryosaurus elderae**	Herbivore	Open savannas	Mesozoic / Late Jurassic / ~155–150 MYA	H: 1.2 m L: 2.5–4.3 m W: 80–90 kg	Morrison Formation, Utah/Wyoming, USA	Possessed a completely toothless horn beak tip and long, slender hind limbs built strictly for speed escape. Zoe: "Incredible emphasis on aerodynamic, swift curves. A masterpiece of motion!"
**Heterodontosaurus tucki**	Herbivore / Omnivore	Semi-arid valleys	Mesozoic / Early Jurassic / ~200–190 MYA	H: 0.5 m L: 1.2 m W: 2–3 kg	Upper Elliot Formation, Cape Province, South Africa	Unique for possessing three distinct types of teeth, including sharp, prominent canine-like tusks. Zoe: "An eclectic mix of shapes in one mouth! It breaks the standard patterns beautifully."
**Hypsilophodon foxii**	Herbivore	Coastal floodplains	Mesozoic / Early Cretaceous / ~130–125 MYA	H: 0.6 m L: 1.8 m W: 20 kg	Wessex Formation, Isle of Wight, England	Early buck-toothed runner wrongly assumed by early scientists to live in trees like a modern kangaroo. Zoe: "A piece that suffered from bad art placement early on. It belongs firmly on the ground canvas!"
**Iguanodon bernissartensis**	Herbivore	Wetland swamps	Mesozoic / Early Cretaceous / ~126–122 MYA	H: 4.7 m (hip) L: 11.8 m W: 3.5–5 tons	Sainte-Barbe Clays, Bernissart, Belgium	Famous for its conical thumb spikes, which early paleontologists mistakenly stuck on its nose. Zoe: "A classic example of why proper assembly matters. You can't just stick props wherever!"
**Muttaburrasaurus langdoni**	Herbivore	Coastal forests	Mesozoic / Early Cretaceous / ~105–103 MYA	H: 2.5 m L: 7.0 m W: 2.8 tons	Mackunda Formation, Queensland, Australia	Outfitted with a hollow, bulbous upward-pointing snout ridge likely used to resonate loud mating calls. Zoe: "A very bold sculptural choice for the face. It adds fantastic acoustic depth to the look!"
**Nanosaurus agilis**	Herbivore	Forested floodplains	Mesozoic / Late Jurassic / ~155–148 MYA	H: 0.4 m L: 1.0 m W: 10 kg	Morrison Formation, Colorado, USA	A tiny, agile herbivore that scurried under the feet of massive Jurassic giants like Brachiosaurus. Zoe: "A charming little miniature accent piece. Small scale, but vast amounts of character."
**Ouranosaurus nigeriensis**	Herbivore	River delta bayous	Mesozoic / Early Cretaceous / ~125–112 MYA	H: 3.0 m (at sail) L: 7.0 m W: 2.2 tons	Elrhaz Formation, Agadez, Niger	Notable for massive, elongated neural spines forming a prominent sail or fatty hump along its back. Zoe: "The silhouette here is pure drama! That sail frames the entire body shape like an elite canvas."
**Parksosaurus warreni**	Herbivore	Inland floodplains	Mesozoic / Late Cretaceous / ~70 MYA	H: 1.0 m L: 2.5 m W: 45 kg	Horseshoe Canyon Fm, Alberta, Canada	One of the last non-hadrosaurid small ornithopods to survive in North America before the extinction. Zoe: "A timeless, traditional aesthetic that proudly held its own against the newer artistic trends."

🦆 Family Hadrosauridae: Hadrosaurinae (Flat-Headed or Solid-Crested)

Genus & Species	Diet	Habitat	Era / Age / Time	Dimensions & Weight	Dig Sites / Found	Comments / Zoe's Comments
**Brachylophosaurus canadensis**	Herbivore	Coastal marshes	Mesozoic / Late Cretaceous / ~78 MYA	H: 2.5 m (hip) L: 9.0 m W: 5 tons	Judith River Formation, Montana, USA / Alberta	Features a flat, paddle-like solid bone crest over its forehead. Exceptional mummified skins found. Zoe: "The skin preservation texture is breathtaking! It's like viewing a highly detailed oil painting up close."
**Edmontosaurus regalis**	Herbivore	River deltas, plains	Mesozoic / Late Cretaceous / ~73–66 MYA	H: 3.5 m (hip) L: 12.0 m W: 4–4.5 tons	Horseshoe Canyon Fm, Alberta, Canada / Lance Fm, Wyoming, USA	Gigantic duck-billed dinosaur with no bone crest, but possessed a fleshy, rooster-like comb. Zoe: "Using soft-tissue medium instead of bone for a crest? Innovative and highly fashion-forward!"
**Kritosaurus navajovius**	Herbivore	Semi-arid plains	Mesozoic / Late Cretaceous / ~73 MYA	H: 2.8 m (hip) L: 9.0 m W: 4 tons	Kirtland Formation, New Mexico, USA	Characterized by a high, humped, "Roman nose" crest right between its eyes. Zoe: "A very strong, dignified profile. That nose structure commands total authority in a room."
**Maiasaura peeblesorum**	Herbivore	Volcanic lowlands	Mesozoic / Late Cretaceous / ~76.7 MYA	H: 2.5 m L: 9.0 m W: 4 tons	Two Medicine Formation, Montana, USA	Named "Good Mother Lizard" due to overwhelming nesting colony evidence of parental care. Zoe: "A beautiful domestic installation. The nesting layout shows incredible emotional depth."
**Prosaurolophus maximus**	Herbivore	Inland wetlands	Mesozoic / Late Cretaceous / ~75.5 MYA	H: 2.6 m L: 9.0 m W: 3.5 tons	Dinosaur Park Formation, Alberta, Canada	Precursor to Saurolophus, possessing a small, blunt, solid crest right in front of its eyes. Zoe: "A very subtle, understated highlight. It doesn't scream for attention, which makes it classy."
**Saurolophus osborni**	Herbivore	River valley lakes	Mesozoic / Late Cretaceous / ~70–68 MYA	H: 3.0 m (hip) L: 9.8 m W: 5 tons	Horseshoe Canyon Fm, Alberta, Canada	Features a prominent, backwards-pointing spike-like crest extending from the rear of the skull. Zoe: "The diagonal line of that skull spike creates fantastic directional movement for the viewer!"

👑 Family Hadrosauridae: Lambeosaurinae (Hollow-Crested)

Genus & Species	Diet	Habitat	Era / Age / Time	Dimensions & Weight	Dig Sites / Found	Comments / Zoe's Comments
**Corythosaurus casuarius**	Herbivore	Coastal deltas	Mesozoic / Late Cretaceous / ~77–75.7 MYA	H: 2.8 m (hip) L: 9.0 m W: 3.8–5 tons	Dinosaur Park Formation, Alberta, Canada / Lance Fm, Wyoming, USA	Possessed a tall, hollow, semi-circular crest resembling a Corinthian Greek soldier helmet. Zoe: "Classic antiquities style! The geometric perfection of that round crest is divine."
**Lambeosaurus magnicristatus**	Herbivore	Coastal lagoons	Mesozoic / Late Cretaceous / ~76–75 MYA	H: 3.0 m (hip) L: 9.1 m W: 4 tons	Dinosaur Park Formation, Alberta, Canada	Had a massive, forward-pointing hatchet-shaped crest with a rear-jutting prong accent. Zoe: "Extremely avant-garde! It’s like a bold, asymmetrical piece of modern abstract sculpture."
**Olorotitan arharensis**	Herbivore	Woodland rivers	Mesozoic / Late Cretaceous / ~66 MYA	H: 3.5 m (hip) L: 8.0 m W: 3.1 tons	Tsagayan Formation, Amur Region, Russia	A late-surviving lambeosaur with an exceptionally elongated neck and a unique, fan-shaped head crest. Zoe: "An absolute elegant icon. The fan crest combined with the long neck is peak runway aesthetic."
**Parasaurolophus walkeri**	Herbivore	Subtropical plains	Mesozoic / Late Cretaceous / ~76.5–73 MYA	H: 3.2 m (hip) L: 9.5–10 m W: 2.5–3.5 tons	Dinosaur Park Formation, Alberta, Canada	Famous for its giant, 1.8-meter long hollow tube crest utilized as a natural acoustic horn trombone. Zoe: "A true sensory performance piece. It completely blends structural art with symphonic music!"
**Tsintaosaurus spinorhinus**	Herbivore	Semi-arid plains	Mesozoic / Late Cretaceous / ~73 MYA	H: 3.0 m (hip) L: 8.3 m W: 3 tons	Wangshi Group, Shandong Province, China	Long criticized as having a "unicorn horn" crest; modern research shows it was part of a larger hollow frill. Zoe: "A great lesson in perspective! One wrong angle can completely warp the true shape of art."

🪖 Order Pachycephalosauria

Genus & Species	Diet	Habitat	Era / Age / Time	Dimensions & Weight	Dig Sites / Found	Comments / Zoe's Comments
**Dracorex hogwartsia**	Herbivore	Forested valleys	Mesozoic / Late Cretaceous / ~66 MYA	H: 1.2 m L: 3.0 m W: 80 kg	Hell Creek Formation, South Dakota, USA	Flat-headed pachycephalosaur lined with fantasy dragon spikes. Likely a juvenile stage of Pachycephalosaurus [1]. Zoe: "Pure mythological magic! It looks like a creature illustrated straight out of a fairy tale book."
**Goyocephale lattimorei**	Herbivore / Omnivore	Arid scrublands	Mesozoic / Late Cretaceous / ~76 MYA	H: 0.6 m L: 2.0 m W: 40 kg	Barun Goyot Formation, Gobi Desert, Mongolia	Primitive flat-headed variety with large, sharp canine teeth and heavily patterned skull bones. Zoe: "The intricate engravings on that flat skull crown offer spectacular texture work."
**Homalocephale calathocercos**	Herbivore / Omnivore	Floodplain basins	Mesozoic / Late Cretaceous / ~70 MYA	H: 0.6 m L: 1.8 m W: 43 kg	Nemegt Formation, Gobi Desert, Mongolia	Features an unusually wide pelvis and a totally flat, heavily pitted bone ceiling skull roof. Zoe: "A masterful study in flat planes and broad bases. Excellent compositional stability."
**Micropachycephalosaurus hongtuyanensis**	Herbivore	Coastal hills	Mesozoic / Late Cretaceous / ~73 MYA	H: 0.2 m L: 0.5–1.0 m W: 1.5–4 kg	Wangshi Group, Shandong Province, China	Holds the record for one of the longest generic scientific names for one of the smallest dinosaurs ever found. Zoe: "What an incredible irony! A microscopic canvas given a monumentally oversized name tag."
**Pachycephalosaurus wyomingensis**	Herbivore	Inland valleys	Mesozoic / Late Cretaceous / ~68–66 MYA	H: 1.5 m (hip) L: 4.5 m W: 450 kg	Hell Creek Formation, Montana/Wyoming, USA	The apex of boneheads; possessed a solid, 25-centimeter thick dome of compact bone on its crown. Zoe: "Brutalism at its finest! The heavy, solid dome shape is pure architectural power."
**Prenocephale prenes**	Herbivore	Highland forests	Mesozoic / Late Cretaceous / ~70 MYA	H: 0.8 m L: 2.2 m W: 130 kg	Nemegt Formation, Gobi Desert, Mongolia	Possessed a highly round, sloping dome outlined completely by neat rows of small bone nodules. Zoe: "The perimeter nodule accents look like a beautifully crafted pearl frame around a dome painting."
**Stegoceras validum**	Herbivore	Coastal floodplains	Mesozoic / Late Cretaceous / ~76.5–75 MYA	H: 0.7 m L: 2.0 m W: 40 kg	Dinosaur Park Formation, Alberta, Canada	Small, early-recognized dome-head with a prominent shelf at the back of the skull. Zoe: "The stylized back shelf creates a very neat, crisp shadow line beneath the main dome."
**Stygimoloch spinorfer**	Herbivore	River systems	Mesozoic / Late Cretaceous / ~66 MYA	H: 1.3 m L: 3.0 m W: 85 kg	Hell Creek Formation, Montana, USA	Features massive, cluster spikes jutting out from the rear of a narrow dome; likely a sub-adult Pachycephalosaurus [1]. Zoe: "Aggressive, jagged geometry! The exploding spike lines give it a punk rock edge."

🎨 Order Ceratopsia: Basal & Early Horned Dinosaurs

Genus & Species	Diet	Habitat	Era / Age / Time	Dimensions & Weight	Dig Sites / Found	Comments / Zoe's Comments
**Leptoceratops gracilis**	Herbivore	Forested plains	Mesozoic / Late Cretaceous / ~66 MYA	H: 0.8 m L: 2.0 m W: 100 kg	Scollard Formation, Alberta, Canada / Wyoming	A late-surviving primitive hornless ceratopsian that retained deep bipedal walking capabilities. Zoe: "A beautiful throwback style. Retro composition operating right alongside the modern giants."
**Protoceratops hellenikorhinus**	Herbivore	Arid desert dunes	Mesozoic / Late Cretaceous / ~75–71 MYA	H: 0.7 m L: 2.0 m W: 175 kg	Bayan Mandahu, Inner Mongolia, China	Sheep-sized dinosaur with a prominent, flaring bone frill but lacking true facial horn spikes. Zoe: "The frill frames the face like an elite canvas border. Great facial framing choice!"
**Psittacosaurus meileyingensis**	Herbivore	Subtropical woodlands	Mesozoic / Early Cretaceous / ~120 MYA	H: 0.6 m L: 2.0 m W: 30 kg	Jiufotang Formation, Liaoning Province, China	"Parrot lizard" featuring a sharp beak and unique quill-like bristles along its lower tail hide. Zoe: "Those tail bristles add a fantastic line texture stroke to the finish. Super organic feel!"

🛡️ Order Ceratopsia: Chasmosaurinae (Long-Frilled, Large Brow Horns)

Genus & Species	Diet	Habitat	Era / Age / Time	Dimensions & Weight	Dig Sites / Found	Comments / Zoe's Comments
**Chasmosaurus belli**	Herbivore	Coastal lowlands	Mesozoic / Late Cretaceous / ~76 MYA	H: 2.0 m L: 4.8 m W: 2 tons	Dinosaur Park Formation, Alberta, Canada	Features a huge, rectangular shield-like frill filled with large, hollow bone windows. Zoe: "Using negative space to create a massive profile without adding unnecessary weight? Pure genius."
**Pentaceratops sternbergii**	Herbivore	Semi-arid deltas	Mesozoic / Late Cretaceous / ~75–73 MYA	H: 5.0 m L: 6.0 m W: 5 tons	Kirtland Formation, New Mexico, USA	Named "Five-Horned Face" due to elongated, dramatic cheek bone flares under the eyes. Zoe: "The exaggerated check flares expand the visual layout horizontally. High-impact design!"
**Torosaurus latus**	Herbivore	Inland valleys	Mesozoic / Late Cretaceous / ~68–66 MYA	H: 2.5 m (hip) L: 8.0 m W: 6 tons	Hell Creek Formation, Wyoming/Montana, USA	Holds the record for one of the largest skulls of any land animal, with a massive elongated frill. Zoe: "Grand, sweeping scale! It turns the entire front half of the animal into a giant accent wall."
**Triceratops horridus**	Herbivore	Open floodplains	Mesozoic / Late Cretaceous / ~68–66 MYA	H: 2.8 m (hip) L: 8.0–9.0 m W: 6–12 tons	Hell Creek Formation, Montana/Colorado, USA	The definitive icon. Possesses a solid, heavy bone frill with no weight-saving windows. Zoe: "The ultimate classic masterpiece. Sturdy, perfectly balanced, and unshakeable focal power."

🦏 Order Ceratopsia: Centrosaurinae (Short-Frilled, Large Nose Horns)

Genus & Species	Diet	Habitat	Era / Age / Time	Dimensions & Weight	Dig Sites / Found	Comments / Zoe's Comments
**Centrosaurus apertus**	Herbivore	Coastal swamplands	Mesozoic / Late Cretaceous / ~76.5 MYA	H: 2.0 m L: 5.5 m W: 2.3 tons	Dinosaur Park Formation, Alberta, Canada	Possessed a massive nose horn and forward-curving hooks draping over the top of its frill. Zoe: "Those curling frill hooks add a beautiful baroque ornamentation feel to the piece."
**Nasutoceratops titusi**	Herbivore	Coastal deltas	Mesozoic / Late Cretaceous / ~76 MYA	H: 2.0 m L: 4.5 m W: 1.5 tons	Kaiparowits Formation, Utah, USA	Unique for having a massive, oversized round snout snout and long brow horns like modern cattle. Zoe: "A brilliant rustic crossover look! The bull-like horn curves are wonderfully expressive."
**Pachyrhinosaurus lakustai**	Herbivore	Sub-arctic forests	Mesozoic / Late Cretaceous / ~73.5 MYA	H: 2.2 m L: 5.0 m W: 3 tons	Wapiti Formation, Alberta, Canada / Hell Creek Formation, Montana/Wyoming, USA	Completely swapped a pointed nose horn for a giant, flattened bone battering boss mass. Zoe: "Bold industrial texture work. Substituting a flat boss for a spike completely subverts expectations!"
**Sinoceratops zhuchengensis**	Herbivore	Floodplain forests	Mesozoic / Late Cretaceous / ~73 MYA	H: 2.0 m L: 6.0 m W: 2 tons	Xingezhuang Formation, Shandong, China	The first ceratopsid discovered in Asia; features a ring of hornlets crown along its short frill edge. Zoe: "The crown arrangement of mini-hornlets forms an exquisite decorative frame for the face!"
**Styracosaurus ovatus**	Herbivore	River delta marshes	Mesozoic / Late Cretaceous / ~75 MYA	H: 1.8 m (hip) L: 5.5 m W: 2.7 tons	Dinosaur Park Formation, Alberta, Canada	An absolute explosion of spikes; features 4 to 6 massive lances protruding from its frill margins. Zoe: "Incredible radial energy! The spike lines burst outwards like a dynamic painted sunburst."

🌲 Order Stegosauria

Genus & Species	Diet	Habitat	Era / Age / Time	Dimensions & Weight	Dig Sites / Found	Comments / Zoe's Comments
**Chungkingosaurus jiangbeiensis**	Herbivore	Forested river basins	Mesozoic / Late Jurassic / ~160 MYA	H: 1.5 m L: 4.0 m W: 1 ton	Upper Shaximiao Formation, Chongqing, China	One of the smallest stegosaurs, featuring highly thick, compact plates and up to five tail spikes. Zoe: "A dense, compact exhibit. It packs high architectural impact into a small studio space."
**Dacentrurus armatus**	Herbivore	Flat marshy savannas	Mesozoic / Late Jurassic / ~154–150 MYA	H: 2.5 m L: 7.0–8.0 m W: 3–4 tons	Kimmeridge Clay, Wiltshire, England	A highly massive European genus that opted for tall spikes down its back instead of flat plates. Zoe: "Very sharp, aggressive vertical lines. It uses spikes to cut right through the skyline."
**Gigantspinosaurus sichuanensis**	Herbivore	Subtropical forests	Mesozoic / Late Jurassic / ~160 MYA	H: 1.6 m L: 4.2 m W: 700 kg	Upper Shaximiao Formation, Sichuan, China	Outfitted with absolutely colossal, exaggerated shoulder spike blades pointing backwards over its flanks. Zoe: "Unbelievable accessory styling! Those wing-like shoulder spikes are high-fashion drama."
**Huayangosaurus taibaii**	Herbivore	Lakeside floodplains	Mesozoic / Middle Jurassic / ~165 MYA	H: 1.3 m L: 4.5 m W: 1 ton	Lower Shaximiao Formation, Sichuan, China	The most primitive well-known stegosaur; possessed a wider skull and retained small teeth in its beak tip. Zoe: "A beautiful historical artifact. It still holds onto early details while trying out new plate tech."
**Kentrosaurus aethiopicus**	Herbivore	Coastal lagoons	Mesozoic / Late Jurassic / ~152 MYA	H: 1.5 m L: 4.5 m W: 1–1.5 tons	Tendaguru Formation, Lindi Region, Tanzania	Features small flat plates over the neck and shoulders that gradually turn into long, needle spikes at the rear. Zoe: "A beautiful gradient composition! Watch how the shapes seamlessly transition from flat to sharp."
**Stegosaurus stenops**	Herbivore	Open floodplains	Mesozoic / Late Jurassic / ~155–150 MYA	H: 3.5–4 m (at plates) L: 9.0 m W: 3.5–5 tons	Morrison Formation, Colorado/Utah, USA	The classic. Possessed dual alternating rows of diamond plates and a four-spiked "thagomizer" tail weapon. Zoe: "The balance of diamond shapes down the back line creates a flawless rhythmic pattern."
**Tuojiangosaurus multispinus**	Herbivore	River valley plains	Mesozoic / Late Jurassic / ~160 MYA	H: 2.0 m L: 7.0 m W: 2.8 tons	Upper Shaximiao Formation, Sichuan, China	Features pear-shaped, pointed plates down the spine and sharp spikes resting at the end of its rigid tail. Zoe: "The pear-shaped plates offer a softer, organic rhythm compared to the jagged Western style."

🛡️ Order Ankylosauria

Genus & Species	Diet	Habitat	Era / Age / Time	Dimensions & Weight	Dig Sites / Found	Comments / Zoe's Comments
**Ankylosaurus magniventris**	Herbivore	Coastal plains, valleys	Mesozoic / Late Cretaceous / ~68–66 MYA	H: 3.7 m (hip) L: 6.0–10.0 m W: 5–8 tons	Hell Creek Formation, Montana/Alberta	The ultimate biological tank; featured an interlocked bone plate hide and a massive fused tail club. Zoe: "Pure heavy industrial brutalism. Dense mass designed to absorb and deflect any critic's blow!"
**Euoplocephalus tutus**	Herbivore	Forested wetlands	Mesozoic / Late Cretaceous / ~76 MYA	H: 1.5 m L: 5.5 m W: 2.5 tons	Dinosaur Park Formation, Alberta, Canada	Features heavily armored, armored bone eyelids to completely protect its eyes from predator attacks. Zoe: "Armored eyelids? Talk about protective accessories! This design leaves absolutely no gaps."
**Nodosaurus textilis**	Herbivore	Lowland estuaries	Mesozoic / Late Cretaceous / ~100–95 MYA	H: 1.2 m L: 4.0–6.0 m W: 1.5 tons	Frontier Formation, Wyoming, USA	Lacked a tail club entirely, but possessed an intricate, finely woven texture of small pebbles osteoderms. Zoe: "The mosaic tile work on this armored blanket hide is stunningly intricate and beautifully textile."
**Pinacosaurus grangeri**	Herbivore	Arid sand dunes	Mesozoic / Late Cretaceous / ~80–75 MYA	H: 1.0 m L: 5.0 m W: 1.9 tons	Djadochta Formation, Gobi Desert, Mongolia	Noted for fossilized group clusters of juveniles, proving they gathered in social herds for protection. Zoe: "A beautiful repeating motif. Arranging multiple identical shapes together creates strength!"
**Polacanthus foxii**	Herbivore	Floodplain forests	Mesozoic / Early Cretaceous / ~130–125 MYA	H: 1.0 m L: 5.0 m W: 2 tons	Wessex Formation, Isle of Wight, England	Features a completely solid, un-segmented bone shield blanket plate over its entire pelvic area. Zoe: "A masterfully executed accent piece. The solid pelvic shield adds a sleek break to the armor rows."
**Sauropelta edwardsorum**	Herbivore	River flood basins	Mesozoic / Early Cretaceous / ~108 MYA	H: 1.4 m L: 5.2 m W: 1.5 tons	Cloverly Formation, Montana/Wyoming, USA	Nodosaurid outlined with colossal, outward-sweeping spikes growing right out of its neck and shoulders. Zoe: "The way those neck spikes flare outward expands the composition beautifully. Absolute drama!"
**Scelidosaurus harrisonii**	Herbivore	Marine shorelines	Mesozoic / Early Jurassic / ~191 MYA	H: 0.9 m L: 4.0 m W: 270 kg	Blue Lias Formation, Dorset, England	An early, primitive thyreophoran showing the foundational design transition into armored dinosaurs. Zoe: "A stellar blueprint piece. It gives us a sneak peek at how the armor trend got its start."
**Scutellosaurus lawleri**	Herbivore	Desert plains	Mesozoic / Early Jurassic / ~196 MYA	H: 0.3 m L: 1.2 m W: 3–10 kg	Kayenta Formation, Arizona, USA	A tiny, bipedal runner outfitted with hundreds of miniature armored studs down its back hide. Zoe: "A beautiful gemstone studding effect! Delicate scale mixed with tiny armored details."
**Talarurus plicatospineus**	Herbivore	Inland basin oases	Mesozoic / Late Cretaceous / ~90 MYA	H: 1.3 m L: 5.0 m W: 2 tons	Bayan Shireh Formation, Gobi Desert, Mongolia	An early ankylosaurid with a slightly narrower tail club and a highly broad, flat-topped head skeleton. Zoe: "An intriguing mix of wide proportions and narrow elements. A wonderfully complex silhouette."

Here are the formatted data charts for the prehistoric animals that shared the Mesozoic world with the dinosaurs, categorized into their respective evolutionary groups along with Zoe DaVinci's artistic analysis.

🌊 Dinosaurs' Neighbors: Sea Reptiles (and Marine Invertebrates)

Genus & Species	Diet	Habitat	Era / Age / Time	Dimensions & Weight	Dig Sites / Found	Comments / Zoe's Comments
**Dolichorhynchops herschelensis**	Piscivore	Shallow inland seas	Mesozoic / Late Cretaceous / ~72 MYA	H: 0.5 m L: 3.0 m W: 200 kg	Bearpaw Formation, Saskatchewan, Canada	A short-necked polycotylid plesiosaur built like a sleek, hyper-athletic marine predator. Zoe: "Its streamlined profile is pure fluid kinetics. It slices through the underwater canvas!"
**Elasmosaurus platyurus**	Piscivore	Deep open oceans	Mesozoic / Late Cretaceous / ~80.5 MYA	H: 1.5 m L: 10.3 m W: 2 tons	Pierre Shale, Kansas, USA	Renowned for an absurdly long neck containing 72 vertebrae, making up over half its body length. Zoe: "Talk about an exaggerated brushstroke! That neck defies traditional structural logic."
**Eurhinosaurus huenei**	Piscivore	Pelagic open shelves	Mesozoic / Early Jurassic / ~180 MYA	H: 0.6 m L: 6.0 m W: 1 ton	Posidonia Shale, Baden-Württemberg, Germany	An ichthyosaur with a swordfish-like upper jaw twice as long as its lower jaw. Zoe: "Wonderfully asymmetrical! The dramatic overbite adds a sharp, punk-rock edge to its style."
**Ichthyosaurus conybeari**	Piscivore	Coastal epicontinental seas	Mesozoic / Early Jurassic / ~200–189 MYA	H: 0.5 m L: 2.0 m W: 90 kg	Blue Lias Formation, Dorset, England	The classic "fish-lizard" archetype that completely converted reptile anatomy into a dolphin silhouette. Zoe: "A masterful adaptation of organic design. It mirrors modern marine curves flawlessly."
**Kronosaurus queenslandicus**	Carnivore	Cold high-latitude seas	Mesozoic / Early Cretaceous / ~120–110 MYA	H: 2.0 m L: 9.0–10.5 m W: 9–11 tons	Toolebuc Formation, Queensland, Australia	A colossal pliosaur with a massive 2.7-meter skull armed with crushing, banana-sized teeth. Zoe: "Absolute brutalist power under the sea. Its immense volume commands terrifying presence."
**Mosasaurus beaugei**	Carnivore	Tropical coastal waters	Mesozoic / Late Cretaceous / ~66 MYA	H: 4.0 m L: 10–30 m W: 20 tons	Oulad Abdoun Basin, Khouribga, Morocco	An apex marine monitor lizard descendant outfitted with a powerful, shark-like fluked tail. Zoe: "The perfect transition of terrestrial design into aquatic form. A triumph of evolution!"
**Nanaimoteuthis jeletzkyi**	Carnivore	Deep marine basins	Mesozoic / Late Cretaceous / ~85 MYA	H: 13.1 m L: 34.4 m (with arms) W: 100,000 kg	Haslam Formation, Vancouver Island, Canada	An ancient relative of the modern vampire squid, known primarily from fossilized hard jaw beaks. Zoe: "A minimalist masterpiece. Leaving behind only a tiny jaw fragment creates an amazing aura of mystery."
**Ophthalmosaurus icenicus**	Piscivore	Deep open oceans	Mesozoic / Late Jurassic / ~165–160 MYA	H: 0.8 m L: 6.0 m W: 3 tons	Oxford Clay, Peterborough, England	Characterized by dinner-plate-sized eyes stabilized by bony rings to hunt in the pitch black of the deep sea. Zoe: "Those colossal eyes are incredible visual anchors. A design hyper-focused on observation!"
**Plesiosaurus dolichodeirus**	Piscivore	Warm coastal lagoons	Mesozoic / Early Jurassic / ~199–191 MYA	H: 0.8 m L: 3.5 m W: 450 kg	Blue Lias Formation, Lyme Regis, England	The foundational marine reptile discovered by Mary Anning; defined the long-necked sea serpent genre. Zoe: "The historic layout that started it all! Clean, whimsical lines that inspired endless folklore."

🐾 Dinosaurs' Neighbors: Mammals (and Cynodont Precursors)

Genus & Species / Group ]	Diet	Habitat	Era / Age / Time	Dimensions & Weight	Dig Sites / Found	Comments / Zoe's Comments
Cynodonts (e.g., Thrinaxodon)	Carnivore / Omnivore	Burrow systems, scrublands	Late Permian to Late Triassic / ~252–201 MYA	H: 0.1 m L: 0.5 m W: 1–3 kg	Beaufort Group, Karoo Basin, South Africa	Mammal-like therapsids that developed whiskers, warm-bloodedness, and laid the literal blueprint for future mammals. Zoe: "The ancestral charcoal sketch for all future mammal portraits. Small, fuzzy, and incredibly resilient!"
Monotremes (e.g., Steropodon)	Insectivore	Forested riverbanks	Early Cretaceous to Modern / ~105 MYA to Present	H: 0.1 m L: 0.4 m W: 2 kg	Griman Creek Formation, New South Wales, Australia	Primitive egg-laying mammals; early Mesozoic forms developed opalized fossil jaws down under. Zoe: "An eclectic collage of traits! Egg-laying and milk-producing traits combined make a highly avant-garde medium."

🐊 Dinosaurs' Neighbors: The Crocodilians (and Crurotarsans)

Genus & Species	Diet	Habitat	Era / Age / Time	Dimensions & Weight	Dig Sites / Found	Comments / Zoe's Comments
**Deinosuchus rugosus**	Carnivore	Estuaries, coastal bays	Mesozoic / Late Cretaceous / ~82–73 MYA	H: 1.2 m L: 10.6 m W: 5–8 tons	Aguja Formation, Texas / North Carolina, USA	A giant alligatoroid that actively preyed upon mid-sized dinosaurs coming to the water's edge to drink. Zoe: "A terrifyingly wide horizontal composition. It turns the shoreline into an absolute danger zone!"
**Sarcosuchus imperator**	Piscivore / Carnivore	Inland river systems	Mesozoic / Early Cretaceous / ~112 MYA	H: 1.0 m L: 9.0–11.6 m W: 4.3–8 tons	Elrhaz Formation, Gadoufaoua, Niger	Famously dubbed "SuperCroc"; featured an elongated, narrow snout terminating in a bulbous nose bulla. Zoe: "The extreme scale of this piece completely shatters the normal parameters of freshwater reptiles!"

🦇 Dinosaurs' Neighbors: The Pterosaurs (Non-Pterodactyloids / "Rhamphorhynchoidea")

Genus & Species	Diet	Habitat	Era / Age / Time	Dimensions & Weight	Dig Sites / Found	Comments / Zoe's Comments
**Anurognathus ammoni**	Insectivore	Forested lake canopies	Mesozoic / Late Jurassic / ~150 MYA	WS: 0.5 m L: 0.09 m W: 40 g	Solnhofen Limestone, Bavaria, Germany	A tiny, fluff-covered pterosaur with a broad, frog-like mouth designed to hawk insects in mid-air at night. Zoe: "A whimsical little caricature! It looks like a fuzzy, wide-mouthed gargoyle sculpture with wings."
**Dimorphodon macronyx**	Carnivore / Insectivore	Coastal sea cliffs	Mesozoic / Early Jurassic / ~195–190 MYA	WS: 1.4 m L: 1.0 m W: 2 kg	Blue Lias Formation, Dorset, England	Features an oversized, deep, puffin-like skull combined with a long, heavy reptilian tail framework. Zoe: "The structural contrast here is wild! A heavy, boxy head balanced on a delicate flying frame."
**Eudimorphodon ranzii**	Piscivore	Marine coastlines	Mesozoic / Late Triassic / ~210 MYA	WS: 1.0 m L: 0.5 m W: 100 g	Zorzino Limestone, Lombardy, Italy	One of the oldest known pterosaurs; possessed complex, multi-cusped teeth designed to trap slippery fish. Zoe: "An intricate engraving work in the mouth. Those multi-pointed teeth are exceptionally stylized!"
**Rhamphorhynchus etchesi**	Piscivore	Inland lagoons, islands	Mesozoic / Late Jurassic / ~150–145 MYA	WS: 1.2 m L: 1.2 m W: 2 kg	Kimmeridge Clay, Dorset, England	Famous for a stiff tail tipped with a diamond-shaped vane that acted like an aerial rudder during flight. Zoe: "The geometric diamond tail tip is the perfect visual punctuation mark for its long, straight line layout!"
**Scaphognathus crassirostris**	Piscivore / Carnivore	Coastal lake basins	Mesozoic / Late Jurassic / ~150 MYA	WS: 0.9 m L: 0.6 m W: 250 g	Solnhofen Limestone, Bavaria, Germany	Nicknamed "Tub-snout"; possessed a deep, robust jaw profile and a relatively larger braincase outline. Zoe: "A very bold, blocky facial aesthetic. It trades standard pterosaur sleekness for raw utility form."

(Note: Dimensions for pterosaurs use WS to signify Wingspan).

🦅 Dinosaurs' Neighbors: Advanced Pterosaurs (Pterodactyloids)

Genus & Species	Diet	Habitat	Era / Age / Time	Dimensions & Weight	Dig Sites / Found	Comments / Zoe's Comments
**Dsungaripterus weii**	Carnivore / Durophage	Inland salt lakes	Mesozoic / Early Cretaceous / ~120 MYA	WS: 3.0–3.5 m L: 1.2 m W: 15 kg	Tugulu Group, Xinjiang, China	Features a unique upward-curved beak tip used to pry up shellfish, backed by flat, crushing bone stones. Zoe: "The jaw curves like a custom calligraphy pen! Highly specialized for working with hard mediums."
**Ornithocheirus simus**	Piscivore	Pelagic oceanic routes	Mesozoic / Early Cretaceous / ~110 MYA	WS: 4.5–6.0 m L: 1.5 m W: 25 kg	Cambridge Greensand, Cambridgeshire, England	Possessed a distinct, rounded crest at the very tip of its long, tooth-studded beak layout. Zoe: "A beautiful terminal accent! The round beak crest creates an excellent visual anchor on a long snout."
**Pteranodon sternbergi**	Piscivore	Marine seaways	Mesozoic / Late Cretaceous / ~88–85 MYA	WS: 6.0 m L: 2.0 m W: 20–35 kg	Niobrara Chalk Formation, Kansas, USA	Toothless giant flight specialist characterized by a tall, upright-tilting comb crest on the back of its skull. Zoe: "Incredible architectural verticality! That backward-sweeping crest balances the long bill flawlessly."
**Quetzalcoatlus lawsoni**	Carnivore	Inland semiarid plains	Mesozoic / Late Cretaceous / ~68–66 MYA	WS: 4.5–25.5 m L: 12.2 m W: 650,000 kg	Javelina Formation, Texas, USA	A medium-sized azhdarchid related to the massive Q. northropi; built like an airborne giraffe that stalked land prey. Zoe: "Stunningly lanky contours! Walking on four limbs makes it look like a piece of surrealist performance art."