(Ancestor,(Captorhinidae,(Araeoscelidia,(Claudiosaurus,(Younginiformes,(((Testudines,((Thalattosauria,(((Anaro_dash_Dactylo,Serpiano_dash_Neustico),((Simosaurus,(Germanosaurus,(Nothosaurus,Lariosaurus))),((Corosaurus,Cymatosaurus),(Plesiosaurus,(Pistosaurus,Augustasaurus))))),(Paraplacodus,(Placodus,Cyamodus)))),(Helveticosaurus,(BES_SC_390,Saurosphargis)))),(Kuehneosauridae,(Rhynchocephalia,Squamata))),((Archosauriformes,(Rhynchosauria,Trilophosaurus)),(Prolacertiformes,Choristodera))))))));