†suborder Cladornithes Wetmore 1960 (bird)
Full reference: A. Wetmore. 1960. A classification for the birds of the world. Smithsonian Miscellaneous Collections 139(11):1-37
Parent taxon: Pelecaniformes according to A. Wetmore 1960
See also Simpson 1972
Sister taxa: Ardeidae, Fregatae, Gorsachius, Odontopteryges, Odontopterygia, Pelecanidae, Protopelicanus, Protoplotidae, Steganopodes, Threskiornithidae, Tigriornis, Torotix, Zebrilus, Zonerodius
Subtaxa: Cladornithidae
Ecology: ground dwelling carnivore
Distribution: found only at Gulf of San Jorge (Oligocene of Argentina)