After Rieppel, 1997 and Rieppel & Hagdorn, 1997
<==o †Eosauropterygia |-- †Pachypleurosauroidea Huene, 1956 [Pachypleurosauridae Nopcsa, 1928] `--o †Eusauropterygia Tschanz, 1989 sensu Rieppel, 1997 and Rieppel & Hagdorn, 1997 |--o †Simosauridae | |?- †Shingyisaurus | `-- †Simosaurus gaillardoti Meyer, 1842 `--o Nothosauroidea |?- †Sanchiaosaurus dengi |-- †Nothosauridae `--o †Pistosauroidea |--+?- †Corosaurus alcovensis | |-- †Chinchenia sungi | `-- †Kwangsisaurus orientalis `--o †Pistosauria Zittel, 1887 sensu Rieppel, 1998 |-- †Augustasaurus hagdorni Sander, Rieppel & Bucher, 1997 |--o †Cymatosaurus von Fritsch, 1894 [Cymatosauridae] | |-- †C. fridericianus von Fritsch, 1894 [type] | |?- †C. stensioeii (Haas, 1963) [Micronothosaurus stensioeii Haas, 1963] | |?- †C. erythreus | `-- †C. multidentatus `--+--o †Pistosaurus [Pistosauridae Zittel, 1887] | |?- †P. grandaevus | `-- †P. longaevus Meyer, 1839 `-- †Plesiosauria [Plesiosauroidea] (plesiosaurs; joutsenliskot)
Reference(s):
- Carroll, R. L., 1988: Vertebrate paleontology and evolution.
–W. H. Freeman and company, New York, 1988, 698. - Carroll, R. L., 1988: Appendix. 594-648.
in Carroll, R. L. 1988: Vertebrate paleontology and evolution.
–W. H. Freeman and company, New York, 1988, 698 - Rieppel, O. C., 1997: Part II: Sauropterygia – Introduction. 107-119
in Callaway, J. M. & Nicholls, E. L., (eds.) 1997: Ancient Marine Reptiles.
–Academic Press, San Diego, 1997, xivi-501 - Rieppel, O. C. & Hagdorn, H., 1997: Paleobiogeography of Middle Triassic Sauropterygia in Central and Western Europe. 121-144
in Callaway, J. M. & Nicholls, E. L., (eds.) 1997: Ancient Marine Reptiles.
–Academic Press, San Diego, 1997, xivi-501 - Sander, P. M., Rieppel, O. C. & Bucher, H., 1997: A new pistosaurid (Reptilia: Sauropterygia) from the Middle Triassic of Nevada and its implications for the origin of the plesiosaurs.
–Journal of Vertebrate Paleontology: Vol. 17, #3, pp. 526-533