''Brachydelphis'' is a genus of pontoporiid known from the Late Miocene Pisco Formation of Peru and the

Bahía Inglesa Formation Caldera Basin ( es, Cuenca de Caldera) is a sedimentary basin located in the coast of northern Chile west of Copiapó. The basin has a fill of marine sediments of Late Cenozoic age. With a north-south extension of and an east-west width of the ...

of Chile.

Taxonomy

Two species are recognized, ''B. jahuayensis'' and ''B. mazeasi''. ''B. mazeasi'' has a shortened rostrum that gives ''Brachydelphis'' its name,C. de Muizon. 1988. Les vertebres fossiles de la Formation Pisco (Perou). Troisieme partie: Les Odontocetes (Cetacea, Mammalia) du Miocene. ''Editions Recherche sur les Civilisations'' (78)1-244. ''B. jahuayensis'' differs from the type species in having a longer snout and higher tooth count.O. Lambert and C. de Muizon. 2013. A new long-snouted species of the Miocene pontoporiid dolphin Brachydelphis and a review of the Mio-Pliocene marine mammal levels in the Sacaco Basin, Peru. Journal of Vertebrate Paleontology 33(3):709-721

Biology

''Brachydelphis 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.

References

{{Taxonbar, from=Q46725307 River dolphins Prehistoric cetacean genera Miocene mammals of South America Neogene Chile Fossils of Chile Neogene Peru Fossils of Peru Pisco Formation Fossil taxa described in 1988

Taxonomy

Biology

See also

References