AncestorCaptorhinidaeChelydraProganochelysOdontochelysAraeoscelidiaYounginiformesKuehneosauridaeRhynchocephaliaSquamataRhynchosauriaProlacertiformesTrilophosaurusChoristoderaArchosauriformesClaudiosaurusAnaro_dash_DactyloSerpiano_dash_NeusticoSimosaurusNothosaurusLariosaurusCorosaurusCymatosaurusGermanosaurusPistosaurusPlacodusCyamodusAugustasaurusPlesiosaurusHelveticosaurusThalattosauriaEusaurosphargis_BES_SC_390ParaplacodusYunguisaurusIchthyopterygiaSaurosphargisSinosaurosphargisLargocephalosaurus_qianensisLargocephalosaurus_polycarponAtopodentatusOsteologyMaximum ParsimonyBased on reanalysis of the original matrix.Cheng_etal_2014a