(Dromaeosauridae,(Archaeopteryx_lithographica,(Jeholornis_prima,(Sapeornis_chaoyangensis,(Confuciusornis_sanctus,((Archaeorynchus_spathula,(Vorona_berivotrensis,((Hongshanornis_longicresta,(Yanornis_martini,(Songlingornis_linghensis,Yixianornis_grabaui))),(Patagopteryx_deferrariisi,((((Hesperornis_regalis,Baptornis_adventus),(Hesperornithiform_A,Hesperornithiform_B)),((Ichthyornis_dispar,Ornithurine_D),(Iaceornis_marshii,(((Cimolopteryx_rara,(Ornithurine_E,(Cimolopteryx_minima,(Ornithurine_A,(Cimolopteryx_petra,(Cimolopteryx_maxima,(Ornithurine_F,(Ornithurine_B,(Ceramornis_major,Ornithurine_C))))))))),((Lithornis,Crypturellus_undulatus),((Anas_platyrhynchos,Chauna_torquata),(Gallus_gallus,Crax_pauxi)))),(Vegavis,Maaqwi_cascadensis))))),(Apsaravis_ukhaana,Palintropus_retusus)))))),(Protopteryx_feingoldi,(Pengornis_houi,((Cathayornis_yandica,Concornis_lacustris),(Gobipteryx_minuta,(Neuquenornis_volans,(Enantiornithine_A,(Avisaurus_archibaldi,Enantiornithine_B)))))))))))));