Parent taxon: Aves according to L. D. Martin 1992
Sister taxa: Accipitriformes, Aegotheliformes, Archaeornithipus, Avimimiformes, Avipedidae, Barrosopus, Cariamae, Chaoyangornithidae, Charadriiformes, Colymbiformes, Crax, Dolichopterus, Dromiceiidae, Eoaves, Eociconia, Eupterornis remensis, Gansuiformes, Gruipeda, Horezmavis, Hwangsanipes, Ignotornidae, Jeholornis, Jeholornithiformes, Jindongornipodidae, Jixiangornis, Judinornis, Koreanornipodidae, Liaoxiornithidae, Loncornis, Longipennes, Manu, Metornithes, Micropodiformes, Mirandornithes, Moguiornipes, Mystiornithiformes, Odontoglossae, Odontornithes, Omnivoropterygiformes, Pachycorioolithidae, Palaeoaves, Palaeocursornis biharicus, Paludicolae, Pangalliformes, Pansphenisciformes, Parvoolithus, Patagonichnornis, Proherodius, Proherodius oweni, Proornis, Protoaviformes, Protopelargus, Protornis, Pygopodes, Pygostylia, Qianshanornithidae, Rahonavis, Sauriurae, Shandongornipodidae, Shenzhouraptor, Sphenisciformes, Striges, Struthiones, Suliformes, Tantalatos, Tantaleus, Tatarornipes, Telmatoformes, Teracus, Tshulia, Uhangrichnus
Subtaxa: Gastornithidae
Ecology: ground dwelling carnivore
Distribution: