†unranked clade Archosauriformes Gauthier 1986 (archosauromorph)
Invalid subtaxa: Arctosaurus Adams 1875 [nomen dubium], Plateosaurus ornatus Huene 1905 [nomen dubium]
Parent taxon: Archosauromorpha according to S. J. Nesbitt 2011
Sister taxa: Azendohsaurus, Czatkowiella, Drepanosauridae, Mecistotrachelos, Megalancosauridae, Noteosuchus, Prolacerta, Protorosauria, Rhynchosauria, Teraterpetidae, Trilophosauria, Trilophosauridae
Subtaxa: Collilongus, Crosbysaurus, Crurotarsi, Doswelliidae, Erythrosuchia, Erythrosuchidae, Euparkeria, Euparkeriidae, Graoullyodon, Koilamasuchus, Lucianosaurus, Protecovasaurus, Proterochampsia, Proterosuchidae, Tecovasaurus, Uatchitodon, Vancleavea, Yonghesuchus, Zanclodon
Ecology: