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