BrachydelphisBrachydelphis is a genus of pontoporiid known from the Late Miocene Pisco Formation of Peru and the Bahía Inglesa Formation of Chile.TaxonomyTwo species are recognized, B. jahuayensis and B. mazeasi. B. mazeasi has a shortened rostrum that gives Brachydelphis its name, B. jahuayensis differs from the type species in having a longer snout and higher tooth count.BiologyBrachydelphis mazeasi was capable of suction-feeding judging from its short rostrum, but the longer rostrum of B. jahauyensis allowed it to capture small prey items.