Nettapus coromandelicus; Print; Pygmy goose; The pygmy geese are a group of very small "perching ducks" in the genus Nettapus which breed in the Old World tropics. They are the smallest of all wildfowl. As the "perching ducks" are a paraphyletic group; they need to be placed elsewhere. The initially assumed relationship with the dabbling duck subfamily Anatinae has been questioned; and it appears they form a lineage in an ancient Gondwanan radiation of waterfowl; within which they are of unclear affinities.An undescribed fossil species from the late Hemphillian (5.0-4.1 mya) of Jalisco; central Mexico; has also been identified from the distal end of a tarsometatarsus. It is only record of the genus in the New World.; 1700-1880