- Reptilia, 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
--1 is a kind of class
--1 is a member of
--1 has members:Vertebrata, subphylum Vertebrata, Craniata, subphylum Craniata reptile, reptilian; Anapsida, subclass Anapsida; Lepidosauria, subclass Lepidosauria; Archosauria, subclass Archosauria; Synapsida, subclass Synapsida