Osteichthyes - Cotylosauria - Diadectidae
Synonym: Nothodontidae Marsh 1878
Full reference: E. D. Cope. 1880. The skull of Empedocles. The American Naturalist 14:304
Parent taxon: Diadectomorpha according to M. Laurin and R. R. Reisz 1995
See also Carroll 1988, Carroll et al. 1972, Case 1911, Cope 1896, Hay 1902, Hay 1930, Kissel and Lehman 2002, Kuhn 1946, Kuhn 1966, Lewis and Vaughn 1965, Liu and Bever 2015, Martens et al. 2005, Osborn 1904, Perrier 1928 and Zittel 1890
Sister taxa: Diadectoidea, Limnoscelidae, Limnoscelops, Limnoscelops longifemur, Millerinidae, Tseajaiidae
Subtaxa: Alveusdectes Ambedus Animasaurus Bolbodon Chilonyx Desmatodon Diadectes Diadectoides Diasparactus Empedias Ichniotherium Oradectes Orobates Phanerosaurus
Ecology:
Distribution:
• Rotliegendes of Poland (1 collection)
• Permian of Canada (2: Prince Edward Island), China (1), Germany (3), Italy (1), United States (58: Colorado, Nebraska, New Mexico, Ohio, Oklahoma, Texas, Utah)
• Carboniferous to Permian of United States (2: New Mexico)
• Carboniferous of United States (5: Colorado, Kansas, New Mexico, Oklahoma, Pennsylvania)
Total: 73 collections including 88 occurrences