| APATOSAURUSES | • apatosauruses n. Plural of apatosaurus. • APATOSAURUS n. a kind of long-necked dinosaur, also APATOSAUR. |
| ARCHOSAURIANS | • archosaurians n. Plural of archosaurian. • ARCHOSAURIAN n. any of a subclass of reptiles comprising pterosaurs, dinosaurs and crocodilians, also ARCHOSAUR. |
| BRACHIOSAURUS | • brachiosaurus n. A large herbivorous sauropod dinosaur, Brachiosaurus altithorax, which lived during the Jurassic period. • Brachiosaurus prop.n. A taxonomic genus within the family Brachiosauridae – brachiosauruses. • BRACHIOSAURUS n. any member of a genus of huge lizard-hipped plant-eating dinosaurs. |
| CETEOSAURUSES | • CETEOSAURUS n. a large Jurassic dinosaur. |
| DOLICHOSAURUS | • DOLICHOSAURUS n. any member of the Dolichosauria, a group of Cretaceous fossil reptiles. |
| HADROSAURUSES | • HADROSAURUS n. a large dinosaur. |
| ICHTHYOSAURUS | • ichthyosaurus n. (Archaic) Alternative form of ichthyosaur. • ichthyosaurus n. Any members of the genus Ichthyosaurus. • Ichthyosaurus prop.n. A taxonomic genus within the family Ichthyosauridae – large, extinct marine reptiles. |
| MEGALOSAURIAN | • megalosaurian n. A dinosaur of the genus Megalosaurus. • megalosaurian adj. Of or relating to the dinosaurs of the genus Megalosaurus. • MEGALOSAURIAN n. a large dinosaur, also MEGALOSAUR, MEGALOSAURUS. |
| PLESIOSAURIAN | • plesiosaurian n. A plesiosaur. • PLESIOSAURIAN n. a member of the reptile order Plesiosauria, extinct marine reptiles of Mesozoic times. |
| PTEROSAURIANS | • pterosaurians n. Plural of pterosaurian. • PTEROSAURIAN n. a pterodactyl, also PTEROSAUR. |
| SAUROGNATHOUS | • saurognathous adj. (Zoology) having the bones of the palate arranged as in saurians, the vomer consisting of two lateral… • SAUROGNATHOUS adj. having a lizard-like arrangement of the palate-bones (as e.g. woodpeckers). |
| STEGOSAURIANS | • stegosaurians n. Plural of stegosaurian. • STEGOSAURIAN n. any quadrupedal herbivorous ornithischian dinosaur of the suborder Stegosauria. |
| STEGOSAURUSES | • stegosauruses n. Plural of stegosaurus. • STEGOSAURUS n. a herbivorous dinosaur of the Jurassic period, also STEGOSAUR. |
| TELEOSAURIANS | • teleosaurians n. Plural of teleosaurian. • TELEOSAURIAN n. a teleosaur, a member of a Jurassic genus of fossil crocodiles. |
| TYRANNOSAURID | • tyrannosaurid n. (Zoology) Any dinosaur in the family Tyrannosauridae. |
| TYRANNOSAURUS | • tyrannosaurus n. A large carnivorous dinosaur, of the genus Tyrannosaurus, found in North America during the late Cretaceous period. • Tyrannosaurus prop.n. A taxonomic genus within the family Tyrannosauridae – tyrannosaurs. • TYRANNOSAURUS n. a large carnivorous lizard-hipped dinosaur, common during the Cretaceous period, also TYRANNOSAUR. |