(Dromaeosauridae,(Archaeopteryx,(Jeholornis,Shenzhouraptor,Jixiangornis,(Rahonavis,Shenqiornis),(((Zhongornis,(Eoconfuciusornis,(Confuciusornis_sanctus,Changchengornis,(Jinzhouornis_zhangjiyingia,Confuciusornis_dui)))),((Zhongjianornis,(Archaeorhynchus,(Jianchangornis,(((Chaoyangia,Eoornithura),(Vorona,Patagopteryx)),(((Songlingornis,Yanornis,Hollanda,Yixianornis,(Gansus_yumenensis,Yumenornis_huangi,Changmaornis_houi,Jiuquanornis_niui,((Ichthyornis,(Limenavis,Vegavis,Anas,Gallus)),(Enaliornis,(Baptornis_advenus,(Baptornis_varneri,(Hesperornis,Parahesperornis))))))),(Longicrusavis,Hongshanornis)),(Ambiortus,Apsaravis)))))),(Cathyaornis,Concornis,Elsornis,Eocathayornis,Eoenantiornis,Gobipteryx,Iberomesornis,Longirostravis,Neuquenornis,Otogornis,Pengornis,Protopteryx,Rapaxavis,Shanweiniao,Vescornis,(Boluochia,Longipteryx),(Eoalulavis,Liaoningornis)))),(Sapeornis,Didactylornis)))));