archosaurian — I noun extinct reptiles including: dinosaurs; plesiosaurs; pterosaurs; ichthyosaurs; thecodonts • Syn: ↑archosaur, ↑archosaurian reptile • Derivationally related forms: ↑archosaurian (for: ↑archosaur … Useful english dictionary
diapsid reptile — noun reptile having a pair of openings in the skull behind each eye • Syn: ↑diapsid • Ant: ↑anapsid (for: ↑diapsid) • Hypernyms: ↑reptile, ↑reptilian … Useful english dictionary
flying reptile — noun an extinct reptile of the Jurassic and Cretaceous having a bird like beak and membranous wings supported by the very long fourth digit of each forelimb • Syn: ↑pterosaur • Hypernyms: ↑archosaur, ↑archosaurian, ↑archosaurian reptile •… … Useful english dictionary
thecodont reptile — noun presumably in the common ancestral line to dinosaurs and crocodiles and birds • Syn: ↑thecodont • Hypernyms: ↑archosaur, ↑archosaurian, ↑archosaurian reptile • Member Holonyms: ↑Thecodontia, ↑ … Useful english dictionary
crocodilian reptile — noun extant archosaurian reptile • Syn: ↑crocodilian • Hypernyms: ↑diapsid, ↑diapsid reptile • Hyponyms: ↑crocodile, ↑false gavial, ↑Tomistom … Useful english dictionary
archosaur — noun extinct reptiles including: dinosaurs; plesiosaurs; pterosaurs; ichthyosaurs; thecodonts • Syn: ↑archosaurian, ↑archosaurian reptile • Derivationally related forms: ↑archosaurian (for: ↑archosaurian) … Useful english dictionary
diapsid — noun reptile having a pair of openings in the skull behind each eye • Syn: ↑diapsid reptile • Ant: ↑anapsid • Hypernyms: ↑reptile, ↑reptilian • Hyponyms: ↑ … Useful english dictionary
nothosaur — noun extinct marine reptile with longer more slender limbs than plesiosaurs and less completely modified for swimming • Hypernyms: ↑archosaur, ↑archosaurian, ↑archosaurian reptile • Member Holonyms: ↑genus Nothosaurus … Useful english dictionary
plesiosaur — noun extinct marine reptile with a small head on a long neck a short tail and four paddle shaped limbs; of the Jurassic and Cretaceous • Syn: ↑plesiosaurus • Hypernyms: ↑archosaur, ↑archosaurian, ↑archosaurian reptile • Member Holonyms: ↑ … Useful english dictionary
thecodont — noun presumably in the common ancestral line to dinosaurs and crocodiles and birds • Syn: ↑thecodont reptile • Hypernyms: ↑archosaur, ↑archosaurian, ↑archosaurian reptile • Member Holonyms: ↑Thecodontia, ↑ … Useful english dictionary