Primer registro de aves fósiles (Pelecaniformes: Pelecanidae y un probable Odontopterygifomres: Pelagornithidae) para el Mioceno Superior de Costa Rica

For the first time, remains of two fossil marine birds are recorded for Costa Rica; these fossils came out from the Upper Miocene Curre Formation. These finds are associated to shallow marine sediments and conform other marine fossil vertebrates such as cetaceans, sharks and rays.