Castor californicus

Castor californicus
Temporal range: late Miocene to early Pleistocene
Scientific classification Edit this classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Chordata
Class: Mammalia
Order: Rodentia
Family: Castoridae
Genus: Castor
Species:
†C. californicus
Binomial name
†Castor californicus
Kellogg, 1911[1]
Sites of C. californicus finds
Synonyms

†Castor accessor Hay, 1927[2][3]

Beaver, Castor californicus

Castor californicus is an extinct species of beaver that lived in western North America from the end of the Miocene to the early Pleistocene.[2] Castor californicus was first discovered in Kettleman Hills in California, United States. The species was similar to but larger than the extant North American beaver, C. canadensis.[4]

Unlike other members of the Castor genus, the Castor californicus has a total of three enamel folds, the folds of the internal enamel epithelium.[5]

  1. ^ Kellogg, Louise (1911). "A Fossil Beaver from the Kettleman Hills, California". Bulletin of the Department of Geology. 6 (17). University of California Publications: 401–402.
  2. ^ a b "The Paleobiology Database - Castor californicus". Retrieved 2007-09-30.
  3. ^ Hay, Oliver P. (1927). The Pleistocene of the Western Region of North America and its Vertebrated Animals. Carnegie Institution of Washington. Publication ;no. 322B. Carnegie Institution of Washington. pp. 266–267.
  4. ^ Kurtén, B. & E. Anderson (1980). Pleistocene Mammals of North America. New York: Columbia University Press. pp. 236–237. ISBN 0-231-03733-3.
  5. ^ "A fossil beaver from the Kettleman Hills, California, by Louise Kellogg | The Online Books Page". onlinebooks.library.upenn.edu. Retrieved 2023-10-24.