(Ancestor,(Captorhinidae,(Araeoscelidia,((Claudiosaurus,((Prolacertiformes,(Choristodera,(Archosauriformes,(Rhynchosauria,Trilophosaurus)))),((Kuehneosauridae,(Rhynchocephalia,Squamata)),(((Corosaurus,(((Wangosaurus,(Yunguisaurus,((Cymatosaurus,Pistosaurus),(Plesiosaurus,Bobosaurus)))),(Simosaurus,(Germanosaurus,(Nothosaurus,Lariosaurus)))),((Majiashanosaurus,(Hanosaurus,(Keichousaurus,(Dianopachysaurus,(Panzhousaurus,(Wumengosaurus,(Serpianosaurus_dash_Neusticosaurus,(Anarosaurus_dash_Dactylosaurus,Qianxisaurus)))))))),(Diandongosaurus,Dianmeisaurus)))),(Palatodonta,(Paraplacodus,(Psephoderma,(Cyamodus,Placodus))))),(Testudines,Odontochelys))))),(Younginiformes,Hovasaurus)))));