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Pterophocaena

From Wikipedia, the free encyclopedia
Extinct genus of porpoises

Pterophocaena
Temporal range:Late Miocene 9.3–9.2Ma
Scientific classificationEdit this classification
Kingdom:Animalia
Phylum:Chordata
Class:Mammalia
Order:Artiodactyla
Infraorder:Cetacea
Family:Phocoenidae
Genus:Pterophocaena
Murakami,Shimada,Hikida, andHirano, 2012
Species:
P. nishinoi
Binomial name
Pterophocaena nishinoi
Murakami, Shimada, Hikida, and Hirano, 2011
This articlerelies largely or entirely on asingle source. Relevant discussion may be found on thetalk page. Please helpimprove this article byintroducing citations to additional sources.
Find sources: "Pterophocaena" – news ·newspapers ·books ·scholar ·JSTOR
(October 2022)

Pterophocaena nishinoi is an extinct species ofporpoise discovered in theLate MioceneWakkanai Formation of Japan dating to 9.3–9.2million years ago (mya), and may represent an intermediate phase between porpoises and dolphins. It is one of the oldest species discovered, after theMiddle MioceneLoxolithax 16–14.8 mya and the Late MioceneSalumiphocaena 12.6–9 mya. Theholotype specimen comprises a partial skeleton. Thegenus name derives fromAncient Greekpteryx, "wing," in reference to its unusually pronounced beak, andLatinphocaena, "porpoise." Thespecies name honors the discoverer of the holotype, Takanobu Nishino.[1]

References

[edit]
  1. ^Murakami, M.; Shimada, C.; Hikida, Y.; Hirano, H. (2011). "A new basal porpoise,Pterophocaena nishinoi (Cetacea, Odontoceti, Delphinoidea), from the upper Miocene of Japan and its phylogenetic relationships".Journal of Vertebrate Paleontology.32 (5):1157–1171.doi:10.1080/02724634.2012.677299.S2CID 86825231.
Odontocete genera
Xenorophidae
Waipatiidae
Squalodontidae
Squaloziphiidae
Eurhinodelphinidae
Crown-Odontoceti
    • see below↓
Physeteroidea
Kogiidae
Physeteridae
Allodelphinidae?
Squalodelphinidae?
Platanistidae
Berardiinae
Ziphiinae
Hyperoodontinae
Delphinida
    • see below↓
Kentriodontidae
Lipotidae
Iniidae
Pontoporiidae
Monodontidae
Phocoenidae
Lissodelphininae
Delphininae
Globicephalinae
Pterophocaena


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