Parent taxon: Galloanserimorphae according to B. C. Livezey and R. L. Zusi 2007
See also Baird 1992, Bourdon 2005, Carroll 1988, Clarke et al. 2005, del Hoyo et al. 2014, Gadow 1898, Guthrie 1992, Hay 1902, Hope 2002, Howard 1972, Jaekel 1911, Kurochkin 2000, Lindow and Dyke 2006, Livezey 1997, Matsuoka et al. 2001, Mayr 2005, Parmalee 1992, Slack et al. 2006, West et al. 2019, Wetmore 1940, Wetmore 1960, Worthy et al. 2017, Worthy and Nguyen 2020 and Zittel 1890
Sister taxa: Anserimorphae, Diatrymiformes, Dromornithiformes
Subtaxa: Anachronornithidae Anatalavis Anatidae Anhimae Anseranatidae Anseres Brontornis Conflicto Cousteauvia Danielsavis Heterochen Kustokazanser Naranbulagornis Nettapterornis Paakniwatavis Palaeopapia Petropluvialis Presbyornithidae Romainvillia Romainvillidae Telmabatidae Vegaviidae Vegavis
Ecology: volant herbivore