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

Based on WordNet 3.0, Farlex clipart collection. © 2003-2012 Princeton University, Farlex Inc.