(Ancestor,(Captorhinidae,(Araeoscelidia,((Claudiosaurus,((((Prolacertiformes,(Choristodera,(Archosauriformes,(Rhynchosauria,Trilophosaurus)))),(Kuehneosauridae,(Rhynchocephalia,Squamata))),(Ichthyopterygia,(Thalattosauria,(Eusaurosphargis,(Helveticosaurus,((Sinosaurosphargis,((Diandongosaurus,(Corosaurus,Cymatosaurus,Simosaurus,Germanosaurus,(Pistosaurus,(Yunguisaurus,(Augustasaurus,Plesiosaurus))),(Nothosaurus,Lariosaurus))),(Hanosaurus,(Wumengosaurus,(SerpianoNeustico,AnaroDactylo,(Keichousaurus,Dianopachysaurus)))))),(Palatodonta,(Paraplacodus,(Pararcus,Placodus_inexpectatus,(Placodus_gigas,((Cyamodus,Sinocyamodus),(Protenodontosaurus,((Henodus,(Macroplacus,(Psephoderma,Psephochelys))),(Placochelys,Glyphoderma)))))))))))))),(Testudines,Odontochelys))),(Youngina,Hovasaurus)))));