DromaeosauridaeArchaeopteryxJeholornisSapeornisDidactylornisConfuciusornis_sanctusChangchengornisEoconfuciusornisJinzhouornis_zjyC_dui_CastChaoyangiaXinghaiornisStmornithuroParahongshanZhongjianornisBoluochiaShenqiornisCathyaornisConcornisElsornisEoalulavisEocathayornisEoenantiornisGobipteryxIberomesornisLongipteryxLongirostravisNeuquenornisOtogornisEopengornisPengornisProtopteryxRapaxavisShanweiniaoVescornisVoronaSchizoouraArchaeornithuraJianchangornisArchaeorhynchuDingavisLiaoningornisSonglingorniAmbiortusLongicrusavisApsaravisHongshanornisYanornisIteravisPatagopteryxHollandaYixianornisGansusIchthyornisHesperornisParahesperornisEnaliornisBaptornis_advenusBaptornis_varneriLimenavisVegavisAnasGallusOsteologyMaximum ParsimonyBased on reanalysis of the original matrix.Zheng_etal_2018b