Marine Mammal Science (2009)
A new species of phocoenid cetacean Haborophocoena, collected from the Early Pliocene Embetsu Formation, in the close vicinity to the site where the holotype of the type species of the…
Predation by killer whales (Orcinus orca) and the evolution of whistle loss and narrow-band high frequency clicks in odontocetes
Morisaka, T.; Connor, R. C.
Journal of Evolutionary Biology (2007)
A disparate selection of toothed whales (Odontoceti) share striking features of their acoustic repertoires including the absence of whistles and high frequency but weak (low peak-to-peak source level) clicks that…
Timing of epiphyseal development in the flipper skeleton of the harbour porpoise (Phocoena phocoena) as an indicator of paedomorphosis
Galatius, Anders; Andersen, Mai-Britt Elin Rindom; Haugan, Birgitte; Langhoff, Heidi Elisabeth; Jespersen, Åse
Acta Zoologica (2006)
Epiphyseal development was investigated on X-rays of flippers from 158 harbour porpoises from Danish waters. Development followed a proximodistal pattern similar to what is known in other cetacean species. Ossification…
The phylogenetic relationships and biogeography of true porpoises (Mammalia: Phocoenidae) based on morphological data
Fajardo-Mellor, Liliana; Berta, Annalisa; Brownell, Robert L.; Boy, Claudia C.; Goodall, R. Natalie P.
Marine Mammal Sci (2006)
Prior studies of phylogenetic relationships among phocoenids based on morphology and molecular sequence data conflict and yield unresolved relationships among species. This study evaluates a comprehensive set of cranial, postcranial,…
Haborophocoena toyoshimai, a new early Pliocene porpoise (Cetacea; Phocoenidae) from Hokkaido, Japan
Ichishima, H.; Kimura, M.
Journal of Vertebrate Paleontology (2005)
Haborophocoena toyoshimai (family Phocoenidae), from the early Pliocene Mochikubetsu Formation in northwestern Hokkaido, Japan, is a new genus and species of porpoise. The holotype is an incomplete skull, tympanoperiotic, mandible,…
Molecular analyses of the truei and dalli morphotypes of Dall’s porpoise (Phocoenoides dalli)
Escorza-Treviño, S.; Pastene, L. A.; Dizon, A. E.
Journal of Mammalogy (2004)
The taxonomic status of the 2 morphologically distinct forms of Dall's porpoises, Phocoenoides dalli (dalli- and truei-type) remains unresolved. To address this uncertainty, mitochondrial DNA (mtDNA) sequences were used to…
Vaquita Phocoena sinus Norris and McFarland, 1958
Vidal, O.; Brownell, R. L. Jr.; Findley, L. T.
Handbook of Marine Mammals (1999)
Abstract currently unavailable
Evolution, taxonomy and antitropical distributions of the porpoises (Phocoenidae, Mammalia)
Barnes, Lawrence G.
Marine Mammal Sci (1985)
True porpoises are a morphologically distinctive and evolutionarily old group of odontocete cetaceans classified as the family Phocoenidae. They are distinct from members of the family Delphinidae, with which they…
Status of the cochito, Phocoena sinus, in the Gulf of California
Brownell, R. L. Jr.
FAO Fisheries Series (1982)
The cochito (Phocoena sinus), the smallest member of its genus, is known from 21 confirmed records from the upper Gulf of California and is probably found only in that area.…
Regression of the optic system in the Changjiang (Yangtze) finless porpoise (Neophoceana asiaeorientalis) as a result of lack of light
Chen, P.; Shao, Z.; Pilleri, G.
Investigations on Cetacea (1980)
(...) The research shows that the finless porpoise of the Changjiang (Yangtze river) presents an atrophy ofthe entire optic system - eye and eye muscle nerves, optic nerve, optic pathways.…