AncestorCaptorhinidaeTestudinesAraeoscelidiaYounginilormesKuehneosauridaeRhvnchocephaliaSquamataRhynchosauriaProlacertilormesTrilophosaurusChoristoderaProtorosauriaArchioauriformesClaudiosaurusKeichousuchusDactylosaurusAnarosaurusSerpianosaurusNeusticosaurus_dash_PachySimosaurusLariosaurusCeresiosaurusNothosaurusParanothosaurusParaplacodusPlacodusCyamodusOsteologyMaximum ParsimonyBased on reanalysis of the original matrix.Rieppel_1993b