Full reference: S. Chatterjee. 1991. Cranial anatomy and relationships of a new Triassic bird from Texas. Philosophical Transactions of the Royal Society of London B 332:277-342
Parent taxon: Aves according to S. Chatterjee 1991
Sister taxa: Accipitriformes, Aegotheliformes, Aletornis, Avimimiformes, Avipedidae, Callaeidae, Chaoyangornithidae, Charadriiformes, Colymbiformes, Emeidae, Eoaves, Eremopezidae, Gansuiformes, Gastornithiformes, Hwangsanipes, Ignotornidae, Jeholornithiformes, Jindongornipodidae, Koreanornipodidae, Liaoxiornithidae, Manu, Meliphagidae, Metornithes, Monarchidae, Mystiornithiformes, Neornithes, Odontornithes, Omnivoropterygiformes, Ornithothoraces, Ornithurae, Palaeoaves, Pangalliformes, Pansphenisciformes, Petroicidae, Proornis, Pygostylia, Rahona, Sapeornithiformes, Shandongornipodidae, Sphenisciformes, Stereornithes, Struthiones, Tatarornipes, Trisauropodiscidae, Tshulia, Tubinares, Turnagridae, Uhangrichnus, Zhongjianornis, Zhongornis
Subtaxa: Protoavidae
Ecology: ground dwelling carnivore