Biology:Chonecetus

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Short description: Extinct genus of mammals


Chonecetus
Temporal range: Oligocene
Scientific classification e
Domain: Eukaryota
Kingdom: Animalia
Phylum: Chordata
Class: Mammalia
Order: Artiodactyla
Infraorder: Cetacea
Family: Aetiocetidae
Genus: Chonecetus
Russell (1968)
Type species
Chonecetus sookensis
Species
  • C. sookensis

Chonecetus is an extinct genus of primitive baleen whale of the family Aetiocetidae[1] that lived in the Oligocene period.[2] Its fossils have been found in Canada ,[3] in the northeast Pacific.[4] It was first named by L.S. Russell in 1968, and contains one species, C. sookensis.

Like Aetiocetus, Chonecetus possessed both multicusped teeth and the nutrient foramina required for baleen.[5] Chonecetus closely resembled a modern Mysticeti, with an elongate, streamlined body supporting a pair of paddle-shaped forelimbs, and a horizontal tail fluke strengthened by fibrous cartilage.[1]

Sister Taxa

References

  1. 1.0 1.1 "Cetacea, Indeterminate. Distribution of Animal Family Through Time". www.courtenaymuseum.ca. Archived from the original on October 23, 2007. https://web.archive.org/web/20071023154018/http://www.courtenaymuseum.ca/paleo/paleo/cetacea.html. Retrieved 2008-07-01. 
  2. Whales, Whaling, and Ocean Ecosystems; page 70. By James A. Estes, published 2007; University of California Press. ISBN:0-520-24884-8 Retrieved on July 1, 2008
  3. "Data on the geographic and temporal distribution of cetacean genera". Paleo-Electronica.org. February 2007. http://palaeo-electronica.org/2007_2/00123/data.htm. Retrieved 2008-07-01. 
  4. "The Evolution of Cetaceans - Chapter Nine". The Biology and Conservation of Marine Mammals; Aldemaro Romero.. 2005. http://webcache.googleusercontent.com/search?q=cache:vjGY9avcywwJ:www.clt.astate.edu/aromero/Chapter09.CetaceanEvolution.doc+Chonecetus&hl=en&ct=clnk&cd=28&gl=ca&lr=lang_en. Retrieved 2008-07-01. [|permanent dead link|dead link}}]
  5. Marine Mammals: Evolutionary Biology; page 62. By Annalisa Berta, James L. Sumich, and Kit M. Kovacs, published 2005; Academic Press. ISBN:0-12-088552-2 Retrieved on July 1, 2008.

Suggested further reading

  • Marine Mammal Biology: An Evolutionary Approach By A. Rus Hoelzel. Published 2002 Blackwell Publishing. ISBN:0-632-05232-5

External links

Wikidata ☰ Q5104580 entry