†Iaceornis Clarke 2004 (bird)
Full reference: J. A. Clarke. 2004. Morphology, phylogenetic taxonomy, and systematics of Ichthyornis and Apatornis (Avialae: Ornithurae). Bulletin of the American Museum of Natural History 286:1-179
Parent taxon: Ornithurae according to J. A. Clarke 2004
Sister taxa: Ambiortus, Apatornis, Apsaravis, Archaeovolans, Carinatae, Chaoyangia, Chaoyangiformes, Chaoyangornithiformes, Gansus, Gobipterygiformes, Guildavis, Hesperornis, Jianchangornis, Liaoningornithiformes, Odontoholcae, Odontoholomorphae, Otogornis, Qinornis, Schizooura, Songlingornithidae, Yanornithiformes, Yixianornithiformes
Subtaxa: Iaceornis marshi
Type: Iaceornis marshi
Ecology: ground dwelling carnivore