Ichthyornis_disparApsaravis_ukhaanaAnatalavis_oxfordiAnas_platyrhynchosChauna_torquataGallinuloides_wyomingensisGallus_gallusPauxi_pauxiGavia_immerApteryx_oweniiEmeus_crassusStruthio_camelusPalaeotis_weigeltiRhea_americanaDromaius_novaehollandiaeCrypturellus_undulatusNothura_maculosaEudromia_elegansTinamus_majorLithornis_celetiusLithornis_plebiusLithornis_promiscuusLithornis_vulturinus_MGUH26770Paracathartes_howardaePseudocrypturus_cercanaxiusCalciavis_grandeiOsteologyMaximum ParsimonyBased on reanalysis of the original matrix.Field_etal_2018ab