Reptilia - Sauropterygia

Invalid subtaxa: Hemilopas Meyer 1834 [nomen dubium], Hemilopas mentzeli Meyer 1847 [nomen dubium], Nothosaurus picardi Chop 1857 [nomen dubium]

Full reference: O. Rieppel. 1994. Osteology of Simosaurus gaillardoti and the relationships of stem-group Sauropterygia. Fieldiana: Geology, new series 28:1-85

Parent taxon: Sauropterygia according to F. R. O'Keefe 2001

Sister taxa: Cercidopleura, Dicranopleura, Doliovertebra, Lariosauridae, Nothosauria, Nothosauriformes, Pistosauria, Placodontiformes, Sphenosaurus

Subtaxa: Corosaurus, Cymatosauridae, Diandongosaurus, Eusauropterygia, Largocephalosaurus, Nothosauridae, Nothosauroidea, Pachypleurosauria, Pachypleurosauroidea, Pistosauroidea, Qianxisaurus, Wumengosaurus

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Ecology: