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