"The clade Sauria was traditionally a suborder for lizards which, before 1800, were crocodilians. It has been redefined as the group containing the most recent common ...
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ancestor of archosaurs and lepidosaurs and all its descendants; as such it was commonly thought that Sauria is a crowned-base grouping of diapsids. However, recent genomic studies and comprehensive studies in the fossil record suggest that turtles are closely related to archosaurs, not to parareptiles as previously thought. Sauria can be seen as a crowned-group of all modern reptiles (including birds) within the larger total group Sauropsida, which also contains various stem-reptile groups." - (en.wikipedia.org 02.03.2020)
