(Seymouria,((Limnoscelis,Orobates),(Eothyris,(Archaeovenator,(((Captorhinus,Rhiodenticulatus),(Petrolacosaurus,(Youngina,Acerosodontosaurus))),(Mesosaurus,((Eunotosaurus,Milleretta),(Australothyris,((Microleter,((((Nyctiphruretus,Abyssomedon),(Procolophon,(Owenetta,Barasaurus))),((Macroleter,Bashkyroleter_mesensis,Bashkyroleter_bashkyricus,Nycteroleter,Emeroleter,Rhipaeosaurus),(Bradysaurus,(Pareiasuchus,Scutosaurus)))),(Eudibamus,Belebey))),(Feeserpeton,((Lanthanosuchus,Acleistorhinus),(Colobomycter,Delorhynchus))))))))))));