After Laurin, 1996a,b and Berman, Henrici, Sumida & Martens, 2000
<==o †Seymouriamorpha Watson, 1917 |?- †“Rhipaeosaurus” talonophorus [Leptoropha novojilovi] |?- †Microphon exiguus Ivakhnenko, 1983 [has long been treated as a procolophonid reptile (Säilä, 2009)] |-- †Urumqia liudaowanensis |-- †Utegenia shpinari Kuznetsov & Ivakhnenko, 1981 |--o †Kotlassiidae [incl.? Bystrowianidae Vjuschkov, 1957 ] | |?-o †Axitectum Shishkin & Novikov, 1992 [Bystrowianidae] | | |-- †A. vjushkovi Shishkin & Novikov, 1992 | | `-- †A. georgi Shishkin & Novikov, 1992 | |-- †Buzulukia | |-- †Bystrowiana permira Vjuschkov, 1957 [Bystrowianidae] | |?- †Dromotectum spinosum Novikov & Shishkin, 1996 [Bystrowianidae] | |?- †Enosuchus breviceps | |-- †Karpinskiosaurus | |-- †Kotlassia | `?- †Synesuchus muravjevi Novikov & Shishkin, 2000 [Bystrowianidae] `--+--o †Discosauriscidae Romer, 1947 sensu stricto | |-- †Makowskia laticephala Klembara, 2005 | `--o †Discosauriscus Kuhn, 1933 [taxonomic history] | |-- †D. austriacus (Makowsky, 1876) [taxonomic history] | `-- †D. pulcherrimus (Fritsch, 1879) [taxonomic history] `--+-- †Ariekanerpeton sigalovi Ivakhnenko, 1981 `--o †Seymouriidae |-- †Gnorhinosuchus |-- †Nyctiboetus |-- †Rhinosauriscus `--o †Seymouria L. Per. NA. Eu. |-- †S. agilis |-- †S. grandis U. Per. NA. Eu. `--+-- †S. sanjuanensis L. Per. NA. Eu. `-- †S. baylorensis L. Per. NA.
Reference(s):
- Berman, D. S., Henrici, A. C., Sumida, S. S. & Martens, T., 2000: Redescription of Seymouria sanjuanensis (Seymouriamorpha) from the Lower Permian of Germany based on complete, mature specimens with a discussion of paleoecology of the Bromacker locality assemblage.
–Journal of Vertebrate Paleontology: Vol. 20, #2, pp. 253-268 - 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 - Klembara, J., 2005: A new discosauriscid seymouriamorph tetrapod from the Lower Permian of Moravia, Czech Republic.
–Acta Palaeontologica Polonica: Vol. 50, #1, pp. 25-48 - Laurin, M., 1996a: A reappraisal of Utegenia, a Permo-Carboniferous seymouriamorph (Tetrapoda: Batrachosauria) from Kazakhstan.
–Journal of Vertebrate Paleontology: Vol. 16, #3, pp. 374-383 - Laurin, M., 1996b: A reevaluation of Ariekanerpeton, a Lower Permian seymouriamorph (Vertebrata: Seymouriamorpha) from Tadzhikistan.
–Journal of Vertebrate Paleontology: Vol. 16, #4, pp. 653-665 - –iNet: The Tree of Life Project: http://tolweb.org/
- Novikov, I. V., Shishkin, M. A., & Golubev, V. K., 2000: Permian and Triassic anthracosaurs from Eastern Europe. pp. 60-70
in Benton, M. J., Shishkin, M. A., Unwin, D. M. & Kurochkin, E. N., (eds.) 2000: The Age of dinosaurs in Russia and Mongolia.
–Cambridge University Press, Cambridge, UK ; New York, 2000, xxxix-696 - Säilä, L. K., 2009: Alpha taxonomy of the Russian Permian procolophonoid reptiles.
–Acta Palaeontologica Polonica: Vol. 54, #4, pp. 599-608 [doi: 10.4202/app.2009.0017]