craniate,
vertebrate animals having a bony or cartilaginous skeleton with a segmented spinal column and a large brain enclosed in a skull or cranium
class reptilia,
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
anapsid,
anapsid reptile primitive reptile having no opening in the temporal region of the skull; all extinct except turtles
diapsida,
subclass diapsida used in former classifications to include all living reptiles except turtles; superseded by the two subclasses Lepidosauria and Archosauria
Reptiles are animals in the class Reptilia. They are characterized by breathing air, laying tough-shelled amniotic eggs, and having skin covered in scales and/or scutes. Reptiles are classically viewed as having a "cold-blooded" metabolism.
OmegaWiki Dictionary
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reptile A class of terrestrial vertebrates, characterized by the lack of hair, feathers, and mammary glands; the skin is covered with scales, they have a three chambered heart and the pleural and peritoneal cavities are continuous.
reptile Any cold-blooded vertebrate of the class Reptilia.
