Hypernym

diapsid 1

noun

reptile having a pair of openings in the skull behind each eye

Member_meronym

Archosauria 1

noun

a large subclass of diapsid reptiles including: crocodiles; alligators; dinosaurs; pterosaurs; plesiosaurs; ichthyosaurs; thecodonts

archosaur 1

noundomain: animal

Princeton WordNet [ver.3.1]

English

Definition

extinct reptiles including: dinosaurs; plesiosaurs; pterosaurs; ichthyosaurs; thecodonts

Synonyms

archosaurian 1
extinct reptiles including: dinosaurs; plesiosaurs; pterosaurs; ichthyosaurs; thecodonts
archosaurian reptile 1
extinct reptiles including: dinosaurs; plesiosaurs; pterosaurs; ichthyosaurs; thecodonts

Derivationally related form

archosaurian 1

adjective

of or relating to reptiles of the subclass Archosauria

Hyponym

dinosaur 1

noun

any of numerous extinct terrestrial reptiles of the Mesozoic era

pterosaur 1

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

thecodont 1

noun

presumably in the common ancestral line to dinosaurs and crocodiles and birds

ichthyosaur 1

noun

any of several marine reptiles of the Mesozoic having a body like a porpoise with dorsal and tail fins and paddle-shaped limbs

plesiosaur 1

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

Member_holonym

Archosauria 1

noun

a large subclass of diapsid reptiles including: crocodiles; alligators; dinosaurs; pterosaurs; plesiosaurs; ichthyosaurs; thecodonts