 "Megapaloelodus" species were sized from equal to an average greater flamingo until 15 to 20% larger.Unfortunately, it is not known whether their bills were specialized for filter feeding as in the true flamingos, or whether they retained the less-specialized shape of "Palaelodus" which fed on small aquatic invertebrates and vertebrates.The Miocene species "M. connectens" is known from the Early Miocene of Bennett County, South Dakota; Rosebud Formation