†order Trilophosauria (tetrapod)
Parent taxon: Cotylosauria according to O. W. M. Kuhn 1966
See also Carroll 1988 and Long and Murry 1995
Sister taxa: Amniota, Archeria, Bathyglyptus, Captorhiniformes, Captorhinomorpha, Chamasaurus, Conodectiformes, Datheosauri, Diadectiformes, Diadectomorpha, Diadectosauria, Gilmoreichnus, Gymnarthriformes, Labidosauria, Limnoscelia, Pantyliformes, Pantyloidea, Pareiasauriformes, Procolophonipus, Sauraviformes, Solenodonsauridae, Tomicosaurus, Varanopus
Subtaxa: Doniceps Variodentidae
Ecology:
Distribution: found only at Lipovskaya gully (Donskaya Luka) (Triassic of Russian Federation)