Kentriodonis an extinct genus oftoothed whalerelated to modern-daydolphins.Fossils have been found in North America, Europe and Japan.[1]Several species have been described.
| Kentriodon Temporal range:
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| K. pernixskeleton | |
Scientific classification
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| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Class: | Mammalia |
| Order: | Artiodactyla |
| Infraorder: | Cetacea |
| Family: | †Kentriodontidae |
| Genus: | †Kentriodon Kellogg, 1927 |
| Species[1] | |
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| Synonyms | |
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Description
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Kentriodonwas the most diverse of all thekentriodontids,which are represented by seventeen described genera. These were small to medium-sized odontocetes with largely symmetrical skulls, and thought likely to include ancestors of some modern species.Kentriodonis also the oldest described kentriodontid genus, reported from the Late Oligocene to the Middle Miocene.
Kentriodontines ate small fish and other nectonic organisms; they are thought to have been activeecholocators,and might have formed pods. The diversity, morphology and distribution of fossils appear parallel to some modern species.
Species
edit- Kentriodon pernixKellogg, 1927 (type)[2]
- Kentriodon fuchsii(Brandt, 1873)[3]
- Kentriodon hobetsuI ăn kít ma, 1995[4]
- Kentriodon obscurus(Kellogg, 1931)[5]
- Kentriodon schneideriWhitmore and Kaltenbach, 2008[6]
- Kentriodon diusinusSalinas-Márquez, Barnes, Flores-Trujillo, Aranda-Manteca, 2014[7]
- Kentriodon hoepfneriKazár & Hampe, 2014[8]
- Kentriodon nakajimaiKimura & Hasegawa, 2019[9]
- Kentriodon sugawaraiGuo & Kohno, 2021[1]
See also
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References
edit- ^abcGuo, Z., & Kohno, N. (2021). A new kentriodontid (Cetacea: Odontoceti) from the early to middle Miocene of the western North Pacific and a revision of kentriodontid phylogeny. PeerJ, 9, e10945.https://doi.org/10.7717/peerj.10945
- ^R. Kellogg. 1927. Kentriodon pernix, a Miocene porpoise from Maryland. Proceedings of the United States National Museum 69(19):1-14
- ^J. F. Brandt. 1873. Untersuchungen über die fossilen und subfossilen cetaceen Europa's. Mémoires de L'Académie Impériale des Sciences de Saint-Petersbourg, Series 7 20(1):1-372
- ^H. I ăn kít ma. 1995. A new fossil kentriodontid dolphin (Cetacea; Kentriodontidae) from the Middle Miocene Takinoue Formation, Hokkaido, Japan. The Island Arc 3:473-485
- ^R. Kellogg. 1931. Pelagic mammals of the Temblor Formation of the Kern River region, California. Proceedings of the California Academy of Sciences 19(12):217-397
- ^F. C. Whitmore and J. A. Kaltenbach. 2008. Neogene Cetacea of the Lee Creek Phosphate Mine, North Carolina. Virginia Museum of Natural History Special Publication 14:181-269
- ^F. M. Salinas-Marquez, L. G. Barnes, J. G. Flores-Trujillo and F. J. Aranda-Manteca. 2014. Una especie de delfín fósil (Cetacea; Delphinoidea; Kentriodontoidae) del Mioceno Medio de Baja California. Boletin de la Sociedad Geologica Mexicana 66(1):145-164
- ^Emese Kazár and Oliver Hampe (2014). "A new species of Kentriodon (Mammalia, Odontoceti, Delphinoidea) from the middle/late Miocene of Groß Pampau (Schleswig-Holstein, North Germany)". Journal of Vertebrate Paleontology 34 (5): 1216–1230. doi:10.1080/02724634.2014.857347.
- ^Kimura, T., & Hasegawa, Y. (2019). A new species of Kentriodon (Cetacea, Odontoceti, Kentriodontidae) from the Miocene of Japan. Journal of Vertebrate Paleontology, 39(1), e1566739.https://doi.org/10.1080/02724634.2019.1566739
Further reading
edit- Encyclopedia of Marine Mammals,Perrin, Würsig, Thewissen
- The Evolution of Whales,Adapted from National Geographic, November 2001