Alternative spelling: Protorosauri
Synonym: Proterosauria Seeley 1887
Parent taxon: Archosauromorpha according to M. D. Ezcurra et al. 2014
See also Carroll 1988, Chatterjee 1986, Gauthier et al. 1989, Haubold 1974, Haughton and Brink 1954, Huene 1954, Jaekel 1910, Jaekel 1911, Kuhn 1946, Kuhn 1966, Li et al. 2017, Lull 1904, Osborn 1903, Osborn 1904, Perrier 1928, Renesto 2005, Renesto et al. 2010, Roxo 1937, Williston 1917 and Woodward 1898
Sister taxa: Aenigmastropheus, Arctosaurus, Chasmatosuchus vjushkovi, Crocopoda, Czatkowiella, Elessaurus, Exilisuchus, Exilisuchus tubercularis, Gwyneddosaurus, Helveticosauroidea, Jesairosaurus, Mecistotrachelos, Megalancosauridae, Ocolurtaia, Ocolurtaia arquata, Prolacertiformes, Protorosaurus, Rhabdopelix longispinis, Tanystropheidae, Teraterpetidae, Teyujagua, Trilophosauridae
Subtaxa: Fuyuansaurus Pectodens Protorosauridae Sharovipterygidae
Ecology: ground dwelling carnivore
Distribution: