Alternative spellings: Caseosauria, Casesauria
Full reference: S. W. Williston. 1912. Primitive Reptiles - A Review. Journal of Morphology 23(4):637-666
Parent taxon: Synapsida according to F. Spindler et al. 2016
See also Haubold 1971, Hay 1930, Ivakhnenko 2008, Kuhn 1966, Maddin et al. 2008, Martens et al. 2005, Olson 1966, Reisz 1986, Reisz 2005 and Roxo 1937
Sister taxa: Asaphestera, Chelichnopodidae, Eupelycosauria, Ophiacomorpha, Pelycosauria
Subtaxa: Caseidae Eothyrididae
Ecology:
Distribution:
• Triassic of Poland (1 collection), the United Kingdom (1)
• Leonard of United States (1: Texas)
• Wolfcamp of United States (3: Colorado, Texas)
• Permian of Brazil (1), France (3), Germany (1), Italy (1), the Russian Federation (3), the United Kingdom (2), United States (27: Ohio, Oklahoma, Texas)
• Virgilian of United States (3: Kansas, New Mexico)
• Carboniferous of France (1), Poland (1)
Total: 49 collections including 64 occurrences