| ANKYLOSAURS | • ankylosaurs n. Plural of ankylosaur. • ANKYLOSAUR n. a kind of dinosaur with a club tail, also ANKYLOSAURUS. |
| APATOSAURUS | • apatosaurus n. A large sauropod dinosaur of the genus Apatosaurus of the late Jurassic Period. Apatosaurs had a long… • Apatosaurus prop.n. A taxonomic genus within the family Diplodocidae. • APATOSAURUS n. a kind of long-necked dinosaur, also APATOSAUR. |
| BRACHIOSAUR | • brachiosaur n. Any of several massive, herbivorous sauropod dinosaurs, of the genus Brachiosaurus, from the Jurassic… |
| BRONTOSAURS | • brontosaurs n. Plural of brontosaur. • BRONTOSAUR n. any of a genus of large sauropod dinosaurs of the Jurassic, also BRONTOSAURUS. |
| CETEOSAURUS | • CETEOSAURUS n. a large Jurassic dinosaur. |
| COELUROSAUR | • coelurosaur n. Any of several small theropod dinosaurs of the clade Coelurosauria. • COELUROSAUR n. a bipedal carnivorous dinosaur of the Triassic and Cretaceous periods. |
| COTYLOSAURS | • cotylosaurs n. Plural of cotylosaur. • COTYLOSAUR n. an extinct primitive reptile with massive body and short legs. |
| DINOSAURIAN | • dinosaurian adj. Of, relating to, or resembling a dinosaur. • dinosaurian adj. Alternative letter-case form of Dinosaurian. • dinosaurian n. A dinosaur. |
| ELASMOSAURS | • elasmosaurs n. Plural of elasmosaur. • ELASMOSAUR n. a very long-necked extinct marine reptile, a type of plesiosaur. |
| HADROSAURUS | • Hadrosaurus prop.n. A taxonomic genus within the family Hadrosauridae. • HADROSAURUS n. a large dinosaur. |
| ICHTHYOSAUR | • ichthyosaur n. Any of several fishlike marine reptiles of the extinct order Ichthyosauria of the early Triassic to… • ICHTHYOSAUR n. a large fossil marine reptile, also ICHTHYOSAURIAN, ICHTHYOSAURUS. |
| MEGALOSAURI | • MEGALOSAURUS n. a large dinosaur, also MEGALOSAUR, MEGALOSAURIAN. |
| MEGALOSAURS | • megalosaurs n. Plural of megalosaur. • MEGALOSAUR n. a large dinosaur, also MEGALOSAURIAN, MEGALOSAURUS. |
| ORNITHOSAUR | • ORNITHOSAUR n. a pterodactyl. |
| PELYCOSAURS | • pelycosaurs n. Plural of pelycosaur. • PELYCOSAUR n. a kind of dinosaur. |
| PLESIOSAURS | • plesiosaurs n. Plural of plesiosaur. • PLESIOSAUR n. any of a group of extinct marine reptiles of Mesozoic times. |
| PROSAUROPOD | • prosauropod n. Any member of the Prosauropoda, a group of early herbivorous dinosaurs with a long neck and small head… • PROSAUROPOD n. a reptile-like dinosaur of the division Prosauropoda which lived in the Triassic period. |
| STEGOSAURUS | • stegosaurus n. A stegosaur, a member of the suborder Stegosauria, of the order Ornithischia of the middle Jurassic… • stegosaurus n. A member of the genus Stegosaurus within this suborder. • Stegosaurus prop.n. A taxonomic genus within the family Stegosauridae – herbivorous dinosaurs distinguished by the plates… |
| TITANOSAURS | • titanosaurs n. Plural of titanosaur. • TITANOSAUR n. a very large dinosaur. |
| TYRANNOSAUR | • tyrannosaur n. Any large bipedal carnivorous dinosaur, of the family Tyrannosauridae, that lived in North America during… • TYRANNOSAUR n. a large carnivorous lizard-hipped dinosaur, common during the Cretaceous period, also TYRANNOSAURUS. |