reptile wiki:
ia">Crocodilia - Crocodilians Rhynchocephalia - Tuataras Squamata Suborder Sauria- Lizards Suborder Serpentes - Snakes Suborder Amphisbaenia - Worm lizards Testudines - Turtles Superorder Dinosauria Saurischia Ornithischia Reptiles are tetrapods, and also are amniotes, animals whose embryos are surrounded by an amniotic membrane. Today they are represented by four surviving orders:Crocodilia (crocodiles and alligators): 23 speciesRhynchocephalia (tuataras from New Zealand): 2 speciesSquamata (lizards, snakes and amphisbaenids ("worm-lizards") ): approximately 7,600 speciesChelonia (turtles): approximately 300 species
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lizard wiki:
>For other uses, see Lizard (disambiguation). Many, see text. Lizards are reptiles of the order Squamata, which they share with the snakes (Ophidians). They are usually four-legged, with external ear openings and movable eyelids. Species range in adult length from a few centimeters (some Caribbean geckos) to nearly three meters (Komodo dragons).Some lizard species called "glass snakes" or "glass lizards" have no functional legs, though there are some vestigial skeletal leg structures. They are distinguished from true snakes by the presence of eyelids and ears.
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