Sauria n. pl. : A division of Reptilia formerly established to include the Lacertilia, Crocodilia, Dinosauria, and other groups. By some writers the name is restricted to the Lacertilia.

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Taxonomy
Sauria, free encyclopedia, Saurians, reptiles, Callaway, lizard, clades, Ancient Marine Reptiles, search, Fossil range, Kingdom, Phylum, Subclass, unranked, Subgroups, descendants, creature, skull.

Defination from the web:
Sauria is a clade of reptiles that includes all living diapsids, as well as their common ancestor and all its extinct descendants. ... The term "Sauria" has previously been used as a synonym of Lacertilia, a suborder of Squamata that includes all lizards but excludes snakes. ...