DromeosauridaeArchaeopteryx_lithographicaConfuciusornis_sanctusPatagopteryx_deferrariisiApsaravis_ukhaanaIchthyornisCrypturellus_undulatusAnas_platyrhynchosChauna_torquataGallus_gallusCrax_pauxiHesperornis_regalisBaptornis_adventusCathayornis_yandicaConcornis_lacustrisNeuquenornis_volansGobipteryx_minutaOsteologyMaximum ParsimonyBased on reanalysis of the original matrix.Norell_et_Clarke_2001a