†order Chaoyangiformes Hou 1997 (bird)
Full reference: L. H. Hou. 1997. Mesozoic birds of China
Parent taxon: Ornithurae according to L. H. Hou 1997
Sister taxa: Ambiortus, Apatornis, Apsaravis, Archaeovolans, Carinatae, Chaoyangia, Chaoyangornithiformes, Gansus, Gobipterygiformes, Guildavis, Hesperornis, Iaceornis, Jianchangornis, Liaoningornithiformes, Odontoholcae, Odontoholomorphae, Otogornis, Qinornis, Schizooura, Songlingornithidae, Yanornithiformes, Yixianornithiformes
Subtaxa: Chaoyangidae
Ecology: ground dwelling carnivore