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