Petrolacosaurus_kansensisYougina_capensisProlacerta_broomiAgkistrognathus_campebelliAnshunsaurus_huangguoshuensisAnshunsaurus_huangnihensisAnshunsaurus_wushaensisAskeptosaurus_italicusConvavispina_biseridensClarazia_schinziEndennasaurus_acutirostrisHescheleria_ruebeliMiodentosaurus_brevisNectosaurus_haliusParalonectes_merriamiThalattosaurus_alexandraeThalattosaurus_borealisXinpusaurus_suniXinpusaurus_bamaolinensisXinpusaurus_kohiXinpusaurus_xingyiensisOsteologyMaximum ParsimonyBased on reanalysis of the original matrix.Li_etal_2016b