(Dromaeosauridae,(Archaeopteryx_lithographica,(Sapeornis,(Jeholornis,(Zhongjianornis,(Confuciusornis_sanctus,((Archaeorynchus,(Vorona_berivotrensis,(Patagopteryx_deferrariisi,Jianchangornis,Piscivoravis,(chaweiniao,((Apsaravis_ukhaana,((Ichthyornis,(Iaceornis_marshii,(((Anas_platyrhynchos,Chauna_torquata),(Gallus_gallus,Crax_pauxi)),(Crypturellus_undulatus,Lithornis)))),(Hesperornis_regalis,Baptornis_adventus))),(Hongshanornis,(Yanornis_martini,(Songlingornis_linghensis,Yixianornis_grabaui)))))))),(Protopteryx,(Pengornis,(Cathayornis_yandica,Concornis_lacustris,(Neuquenornis_volans,Gobipteryx_minuta)))))))))));