Ophiacodontidae
Edaphosauridae
Haptodus
Sphenacodontidae
Biarmosuchia
Eotitanosuchus
Estemmenosuchidae
Anteosauridae
Anomodontia
Gorgonopsidae
Therocephalia
Procynosuchus
Dvinia
Galesauridae
Thrinaxodon
Cynognathia
Probelesodon
Probainognathus
Trithelodontidae
Sinoconodon
Morganucodontidae