Order Anseriformes Wagler, 1831 - waterfowl and screamers Suborder Anseres Linnaeus, 1758 - waterfowl Family Anatidae Vigors, 1825 - ducks, geese, swans Subfamily Merginae Bonaparte - sea ducks see Subfamily Anatinae Vigors, 1825 Genus †Ocyplonessa Brodkorb, 1961