(Ancestor,(Captorhinidae,(Araeoscelidia,((Claudiosaurus,((((Prolacertiformes,(Choristodera,(Archosauriformes,(Rhynchosauria,Trilophosaurus)))),(Kuehneosauridae,(Rhynchocephalia,Squamata))),(Ichthyopterygia,(Thalattosauria,((Helveticosaurus,(Sinosaurosphargis,((((Corosaurus,Cymatosaurus),((Simosaurus,(Germanosaurus,(Nothosaurus,Lariosaurus))),(Diandongosaurus,(Wumengosaurus,SerpianoNeustico,AnaroDactylo,Keichousaurus,Dianopachysaurus)))),(Yunguisaurus,(Plesiosaurus,(Augustasaurus,Pistosaurus)))),(WinterswijkSkull,(Paraplacodus,(Placodus,(Psephoderma,Cyamodus))))))),(Eusaurosphargis,Hanosaurus))))),(Testudines,Odontochelys))),(Youngina,Hovasaurus)))));