(Ancestor,(((((Isodectes,Acroplous),(Dvinosaurus,(Tupilakosaurus,Thabanchuia))),(Trimerorachis,Neldasaurus)),(((Sclerocephalus,Cheliderpeton),(Konzhukovia,(Archegosaurus,Platyoposaurus))),(Peltobatrachus,(Lapillopsis,(Rhinesuchidae,((Lydekkerina,(Mastodonsaurus,(Capitosauridae,Benthosuchus))),((Luzocephalus,(Thoosuchus,Trematosauridae)),((Almasaurus,Buettneria),((Laidleria,Plagiosauridae),(Rhytidosteidae,(Keratobrachyops,((Xenobrachyops,Batrachosuchus),(Siderops,Pelorocephalus))))))))))))),((Tersomius,(Trematopidae,Dissorophus)),(Eryops,Zatrachydidae))));