AncestorCaptorhinidaeChelydraProganochelysOdontochelysAraeoscelidiaYounginiformesKuehneosauridaeRhynchocephaliaSquamataRhynchosauriaProlacertiformesTrilophosaurusChoristoderaArchosauriformesClaudiosaurusAnaro_dash_DactyloSerpiano_dash_NeusticoSimosaurusNothosaurusLariosaurusCorosaurusCymatosaurusGermanosaurusPistosaurusPlacodusCyamodusAugustasaurusPlesiosaurusHelveticosaurusThalattosauriaEusaurosphargis_BES_SC_390ParaplacodusYunguisaurusIchthyopterygiaSaurosphargisSinosaurosphargisLargocephalosaurus_qianensisLargocephalosaurus_polycarponOsteologyMaximum ParsimonyBased on reanalysis of the original matrix.Li_etal_2014c