Sauria

Sauria is the clade of diapsids containing the most recent common ancestor of Archosauria and Lepidosauria, and all its descendants. Since most molecular phylogenies recover turtles as more closely related to archosaurs than to lepidosaurs as part of Archelosauria, Sauria can be considered the reptile crown group, and may therefore be synonymous with Reptilia. Depending on the systematics, Sauria includes all modern reptiles or most of them as well as various extinct groups.

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