Seymouria
Limnoscelidae
Diadectidae
Synapsida
Mesosauridae
Eunotosaurus
Millerettidae
Nyctiphruretus
Eudibamus
Belebey
Lanthanosuchus
Acleistorhinus
Colobomycter
Bradysaurus
Pareiasuchus
Scutosaurus
Macroleter
Tokosaurus
Bashkyroleter_bashkyricus
Nycteroleter
Bashkyroleter_mesensis
Emeroleter
Procolophon
Owenetta
Barasaurus
Captorhinidae
Paleothyris
Araeoscelidia
Younginiformes