(Dromaeosauridae,(Archaeopteryx_lithographica,(Sapeornis,(Jeholornis,(Zhongjianornis,(Confuciusornis_sanctus,((Archaeorynchus,(Vorona_berivotrensis,(Jianchangornis,(Piscivoravis,(Patagopteryx_deferrariisi,(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)))))))))));