Chonecetus

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

Chonecetus is an extinct genus of Neocene 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 two species, C. sookensis and C. goedertorum (Barnes et al. 1995). It is possibly an Archaeoceti, although a neocene member of this group is rare.[1]

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]

Contents

Sister Taxa

References

  1. ^ a b c "Cetacea, Indeterminate. Distribution of Animal Family Through Time". www.courtenaymuseum.ca. 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 0520248848 Retrieved on July 1, 2008
  3. ^ "Data on the geographic and temporal distribution of cetacean genera". Paleo-Electronica.org. 2007-02. 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://209.85.141.104/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. 
  5. ^ Marine Mammals: Evolutionary Biology; page 62. By Annalisa Berta, James L. Sumich, and Kit M. Kovacs, published 2005; Academic Press. ISBN 0120885522 Retrieved on July 1, 2008.

Suggested further reading

  • Marine Mammal Biology: An Evolutionary Approach By A. Rus Hoelzel. Published 2002 Blackwell Publishing. ISBN 0632052325

External links

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