(Dromaeosauridae,(Archaeopteryx,(Shenqiornis,(Jeholornis,((Sapeornis,Didactylornis),((Eoconfuciusornis,(Confuciusornis_sanctus,(Changchengornis,(Jinzhouornis_zjy,C_dui_Cast)))),((Jianchangornis,(((Schizooura,(Xinghaiornis,(Chaoyangia,Zhongjianornis))),(Dingavis,(((Hongshanornis,(Longicrusavis,((Yanornis,(Vorona,Hollanda)),(Yixianornis,(Archaeornithura,Songlingorni))))),(Gansus,(Ichthyornis,((Limenavis,(Enaliornis,(Baptornis_advenus,(Baptornis_varneri,(Hesperornis,Parahesperornis))))),(Vegavis,(Anas,Gallus)))))),(Ambiortus,(Iteravis,(Apsaravis,Patagopteryx)))))),(Archaeorhynchu,(Stmornithuro,Parahongshan)))),(Elsornis,(Otogornis,((Protopteryx,(Eocathayornis,((Boluochia,Longipteryx),((Iberomesornis,Rapaxavis),(Longirostravis,Shanweiniao))))),(((Eoenantiornis,((Cathyaornis,Concornis),(Eoalulavis,Liaoningornis))),(Neuquenornis,(Gobipteryx,Vescornis))),(Eopengornis,Pengornis))))))))))));