Class Reptilia Linnaeus, 1758 - reptiles
Subclass †Synapsida Osborn, 1903 - synapsids
see Class Synapsida Osborn, 1903
Order †Therapsida Broom, 1905
see [unranked] Therapsida Broom, 1905
Suborder †Anomodontia Owen, 1859
1 Family †Venyukoviidae Efremov, 1940
2 Family †Ostheriidae
3 Family †Dicynodontidae Owen, 1860
4 Family †Cistecephalidae (Broom, 1903)
5 Family †Lystrosauridae Broom, 1903