†suborder Proterosuchia Broom 1906
Alternative spelling: Proterosuchida
Synonym: Pelycosimia Huene 1911
Parent taxon: Thecodontia according to A. J. Charig and H.-D. Sues 1976
See also Camp and Banks 1978, Carroll 1988, Charig 1967, Cooper 1981, Cruickshank 1972, Huene 1911, Huene 1922, Kuhn 1964, Kuhn 1966, Kuhn 1971, Roxo 1937 and Thulborn 1979
Sister taxa: Clarencea, Crenelosaurus, Crenelosaurus nigrosilvanus, Dasygnathoides, Doswelliina, Haemothermia, Jushatyria, Ocoyuntaia, Ocoyuntaia arquata, Platyognathidae, Seemannia, Seemannia palaeotriadica, Shansisuchus heiyuekouensis, Tikoepentapodiscus
Subtaxa: none
Distribution:
• Triassic of Germany (1 collection), the Russian Federation (1)
Total: 2 collections each including a single occurrence