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: Aves according to J. A. Clarke 2004
See also Hood et al. 2019
Sister taxa: Accipitriformes, Alaripeda, Archaeornithipus, Archornithes, Aucornis, Avimimiformes, Avipedidae, Barrosopus, Bucerotiformes, Chaoyangornithidae, Charadriiformes, Climacarthrus, Dolichopterus, Dromiceiidae, Eoaves, Eociconia, Eopteryx, Eucavitaves, Eupterornis remensis, Eurhipidurae, Euryonotus, Falconiformes, Fontinalis, Gansuiformes, Gobioolithidae, Gruipeda, Gyeongsangornipes, Ibidopodia, Ignotornidae, Jeholornis, Jindongornipodidae, Jixiangornis, Koreanaornipodidae, Kuszholiidae, Liaoxiornithidae, Limiavipedidae, Loncornis, Longipennes, Manu, Metornithes, Micropodiformes, Minerva, Mirandornithes, Moguiornipes, Musophagiformes, Mystiornithiformes, Neornithes, Odontoglossae, Odontopterygiformes, Odontornithes, Omnivoropterygiformes, Onychopteryx, Pachycorioolithidae, Palaeoaves, Palaeolestes, Palaeopsittacus, Paludicolae, Pancharadriiformes, Panmirandornithes, Pansphenisciformes, Parvoolithus, Patagonichnornis, Paxavipedidae, Phaethontiformes, Platanavis, Plectophora, Praeornithes, Proherodius, Proherodius oweni, Proornis, Protoaviformes, Protopelargus, Protornis, Psittacopasseres, Psittacopedidae, Pygostylia, Qianshanornithidae, Querandiornis, Riacama, Sauriurae, Shandongornipodidae, Shenzhouraptor, Smiliornis, Tantalatos, Tantaleus, Tatarornipes, Telluraves, Telmatoformes, Teracus, Tricorynopus brinkmani, Tridentigerpes, Tshulia, Uhangrichnus, Yacoraitichnus, Yalavis
Subtaxa: Austinornis
Ecology: ground dwelling carnivore
Distribution: there are no occurrences of Pangalliformes in the database