Suborder Anhimae Wetmore and Miller 1926 (waterfowl)
Parent taxon: Anseriformes according to B. C. Livezey and R. L. Zusi 2007
See also Livezey 1997 and Worthy et al. 2017
Sister taxa: Anachronornithidae, Anatalavis, Anatidae, Anseranatidae, Anseres, Brontornis, Conflicto, Danielsavis, Heterochen, Kustokazanser, Naranbulagornis, Nettapterornis, Paakniwatavis, Palaeopapia, Petropluvialis, Presbyornithidae, Romainvillia, Romainvillidae, Telmabatidae, Vegaviidae, Vegavis
Subtaxa: Anhimidae
Ecology: volant herbivore
Distribution: found only at Santa Fé Farm (Oligocene of Brazil)