(Dromaeosauridae,(Archaeopteryx,(Jeholornis,(Sapeornis,(Confuciusornis,(Protopteryx,((Archaeorynchus,(Vorona,((Patagopteryx,(Apsaravis,((Ichthyornis,(Iaceornis_,(((Anas_platyrhynchos,Chaunatorquata),(Gallus_gallus,Crax_pauxi)),(Crypturellus_undulatus,Lithornis)))),(Hesperornis,Baptornis)))),(Hongshanornis,(Yanornis,(Songlingornis,Yixianornis)))))),(Pengornis,(Neuquenornis,(Xiangornis,(Gobipteryx,(Cathayornis,Concornis))))))))))));