(Dromaeosauridae,(Archaeopteryx_lithographica,(Jeholornis,(Sapeornis,(Confuciusornis_sanctus,((Archaeorynchus,(Vorona_berivotrensis,(Jianchangornis,(Patagopteryx_deferrariisi,(((Changzuiornis_ahgmi,((Gansus_yumenenis,((Ichthyornis,(Apsaravis_ukhaana,(Iaceornis_marshii,(((Anas_platyrhynchos,Chauna_torquata),(Gallus_gallus,Crax_pauxi)),(Crypturellus_undulatus,Lithornis))))),(Hesperornis_regalis,Baptornis_adventus))),(Gansus_zheni,Iteravis_huchzermeyeri))),(Yanornis_martini,(Songlingornis_linghensis,Yixianornis_grabaui))),(Hongshanornis,Longicrusavis)))))),(Protopteryx,(Eoenantiornis,Pengornis,Bohaiornis,Shenqiornis,(Cathayornis_yandica,Concornis_lacustris,(Neuquenornis_volans,Gobipteryx_minuta)),(Longirostravis_hani,Longipteryx_chaoyanensis)))))))));