PaleoDB taxon number: 36626
Parent taxon: Aves according to T. Park and E. M. G. Fitzgerald 2012
Sister taxa: Accipitriformes, Aegotheliformes, Aletornis, Archaeopteryx, Archaeornithipus, Avimimiformes, Avipedidae, Barrosopus, Callaeidae, Cathartiformes, Chaoyangornithidae, Charadriiformes, Colymbiformes, Crax, Emeidae, Eoaves, Eoceornis, Eociconia, Eupterornis remensis, Gansuiformes, Gastornithiformes, Gruipeda, Herodiones, Horezmavis, Hwangsanipes, Ignotornidae, Jeholornis, Jeholornithiformes, Jindongornipodidae, Jixiangornis, Judinornis, Koreanornipodidae, Liaoxiornithidae, Limicolavis, Loncornis, Longipennes, Manu, Meliphagidae, Metornithes, Moguiornipes, Monarchidae, Mystiornithiformes, Odontoglossae, Odontornithes, Omnivoropterygiformes, Pachycorioolithidae, Palaeoaves, Palaeocursornis biharicus, Paludicolae, Pangalliformes, Pansphenisciformes, Parvoolithus, Patagonichnornis, Petroicidae, Proherodius, Proherodius oweni, Proornis, Protoaviformes, Protopelargus, Pygopodes, Pygostylia, Qianshanornithidae, Rahonavis, Sauriurae, Shandongornipodidae, Shenzhouraptor, Stereornithes, Striges, Struthiones, Tantalatos, Tantaleus, Tatarornipes, Tshulia, Tubinares, Turnagridae, Uhangrichnus
Subtaxa: Anthropornis, Archaeospheniscus, Delphinornis, Duntroonornis, Icadyptes, Inkayacu, Kaiika, Kairuku, Korora, Marambiornis, Mesetaornis, Pachydyptes, Palaeospheniscinae, Paraptenodytinae, Perudyptes, Platydyptes, Spheniscidae, Tonniornis, Waimanu, Wimanornis
Ecology: ground dwelling carnivore