(Ancestor,(Captorhinidae,(Araeoscelidia,((Claudiosaurus,((((Prolacertiformes,(Choristodera,(Archosauriformes,(Rhynchosauria,Trilophosaurus)))),(Kuehneosauridae,(Rhynchocephalia,Squamata))),(Ichthyopterygia,(Thalattosauria,(Eusaurosphargis,(Helveticosaurus,((Sinosaurosphargis,((Diandongosaurus,(((Corosaurus,Cymatosaurus),(Pistosaurus,(Yunguisaurus,(Augustasaurus,Plesiosaurus)))),(Simosaurus,(Germanosaurus,(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)))));