class Reptilia

Thesaurus

Noun

1.

class Reptilia - 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 animalsReptiliaCraniata, subphylum Craniata, subphylum Vertebrata, Vertebrata - fishes; amphibians; reptiles; birds; mammalsreptile, reptilian - any cold-blooded vertebrate of the class Reptilia including tortoises, turtles, snakes, lizards, alligators, crocodiles, and extinct formsAnapsida, subclass Anapsida - oldest known reptiles; turtles and extinct Permian formsLepidosauria, subclass Lepidosauria - diapsid reptiles: lizards; snakes; tuatarasArchosauria, subclass Archosauria - a large subclass of diapsid reptiles including: crocodiles; alligators; dinosaurs; pterosaurs; plesiosaurs; ichthyosaurs; thecodontssubclass Synapsida, Synapsida - extinct reptiles of the Permian to Jurassic considered ancestral to mammalsclass - (biology) a taxonomic group containing one or more orders