Full reference: A. Perle, M. A. Norell, L. M. Chiappe and J. M. Clark. 1993. Flightless bird from the Cretaceous of Mongolia. Nature 362:623-626
Parent taxon: Aves according to T. R. Holtz 2000
See also Chiappe et al. 1996, Forster et al. 1996, Ji et al. 1999, Novas 1996, Novas 1997, Novas and Agnolin 2004, Perle et al. 1994 and Perle et al. 1993
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, Micropodiformes, Minerva, Mirandornithes, Moguiornipes, Musophagiformes, Mystiornithiformes, Neornithes, Odontoglossae, Odontopterygiformes, Odontornithes, Omnivoropterygiformes, Onychopteryx, Pachycorioolithidae, Palaeoaves, Palaeolestes, Palaeopsittacus, Paludicolae, Pancharadriiformes, Pangalliformes, 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: none
Ecology: ground dwelling carnivore
Distribution: there are no occurrences of Metornithes in the database