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
See also Cheng et al. 2016, Jiang et al. 2018, Jiang et al. 2014, Klein and Albers 2009, Renesto et al. 2014, Rieppel 1994, Rieppel 1998, Rieppel 1999, Rieppel 2000, Rieppel 2001 and Rieppel and Mazin 1997
Sister taxa: Atopodentatus, Cercidopleura, Dicranopleura, Doliovertebra, Ischyrosaurus, Microleptosaurus, Nanchangosauroidea, Nothosauria, Nothosauriformes, Nothosauripus, Pistosauria, Placodontiformes, Simosauria
Subtaxa: Corosaurus Cymatosauridae Dawazisaurus Diandongosaurus Dianmeisaurus Eusauropterygia Hispaniasaurus Majiashanosaurus Nothosauridae Nothosauroidea Nothosaurus picardi Pachypleurosauria Pachypleurosauroidea Panzhousaurus Pistosauroidea Qianxisaurus Wumengosaurus
Ecology: