Archosauria — noun a large subclass of diapsid reptiles including: crocodiles; alligators; dinosaurs; pterosaurs; plesiosaurs; ichthyosaurs; thecodonts • Syn: ↑subclass Archosauria • Hypernyms: ↑class • Member Holonyms: ↑Reptilia, ↑class Reptilia … Useful english dictionary
subclass Diapsida — noun used in former classifications to include all living reptiles except turtles; superseded by the two subclasses Lepidosauria and Archosauria • Syn: ↑Diapsida • Hypernyms: ↑reptile, ↑reptilian … Useful english dictionary
reptile — reptilelike, adj. reptiloid /rep tl oyd /, adj. /rep til, tuyl/, n. 1. any cold blooded vertebrate of the class Reptilia, comprising the turtles, snakes, lizards, crocodilians, amphisbaenians, tuatara, and various extinct members including the… … Universalium
archosaur — archosaurian, adj. /ahr keuh sawr /, n. any reptile of the subclass Archosauria, including the dinosaurs, pterosaurs, and crocodilians and characterized by two pairs of openings in the temporal region of the skull. [1965 70; < NL Archosaurus,… … Universalium
archosaurian — I noun extinct reptiles including: dinosaurs; plesiosaurs; pterosaurs; ichthyosaurs; thecodonts • Syn: ↑archosaur, ↑archosaurian reptile • Derivationally related forms: ↑archosaurian (for: ↑archosaur … Useful english dictionary
class Reptilia — noun class of cold blooded air breathing vertebrates with completely ossified skeleton and a body usually covered with scales or horny plates; once the dominant land animals • Syn: ↑Reptilia • Derivationally related forms: ↑reptilian (for:… … Useful english dictionary
Reptilia — noun class of cold blooded air breathing vertebrates with completely ossified skeleton and a body usually covered with scales or horny plates; once the dominant land animals • Syn: ↑class Reptilia • Derivationally related forms: ↑reptilian •… … Useful english dictionary
vertebrate — /verr teuh brit, brayt /, adj. 1. having vertebrae; having a backbone or spinal column. 2. belonging or pertaining to the Vertebrata (or Craniata), a subphylum of chordate animals, comprising those having a brain enclosed in a skull or cranium… … Universalium
Pterosauria — noun extinct flying reptiles: pterosaurs • Syn: ↑order Pterosauria • Hypernyms: ↑animal order • Member Holonyms: ↑Archosauria, ↑subclass Archosauria • Member Meronyms: ↑ … Useful english dictionary
List of reptiles — This is a list of extant reptiles by family, spanning three subclasses.=Subclass Anapsida=Order Testudines Turtles*Suborder Cryptodira **Family Chelydridae Common Snapping Turtles and Alligator Snapping Turtle **Family Emydidae Pond Turtles and… … Wikipedia
