Order Anseriformes Wagler, 1831 - waterfowl and screamers Suborder Anseres Linnaeus, 1758 - waterfowl Family Anatidae Vigors, 1825 - ducks, geese, swans Subfamily †Paranyrocinae Miller & Compton, 1939 1 Genus †Paranyroca Miller & Compton, 1939