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Cornwallius
Temporal range: Late Oligocene
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Scientific classification Edit this classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Chordata
Class: Mammalia
Order: Desmostylia
Family: Desmostylidae
Genus: Cornwallius
Hay 1923
Species:
C. sookensis
Binomial name
Cornwallius sookensis

Cornwallius is an extinct herbivorous marine mammal of the family Desmostylidae. Cornwallius lived along the North American Pacific Coast from the Early Oligocene ( Chattian) through the Oligocene (28.4 mya—20.6 Mya) and existing for approximately 7.8 million years. [1] [2]

The type locality is the Chattian Sooke Formation, Vancouver Island, British Columbia, Canada ( 48°24′N 123°54′W / 48.4°N 123.9°W / 48.4; -123.9, paleocoordinates 48°00′N 115°00′W / 48.0°N 115.0°W / 48.0; -115.0). [2]

Cornwallius was named by Hay 1923. Its type is Desmostylus sookensis, named by Cornwall 1922 and recombined to Cornwallius sookensis by Hay 1923. [3]

Fossils have been discovered from Baja California Peninsula, Oregon and Washington coasts, and Unalaska Island. [4]

Notes

  1. ^ Cornwallius in the Paleobiology Database. Retrieved 16 June 2013.
  2. ^ a b Muir Creek (Oligocene of Canada) in the Paleobiology Database. Retrieved 16 June 2013.
  3. ^ Cornwallius sookensis in the Paleobiology Database. Retrieved 16 June 2013.
  4. ^ Beatty 2006b

References

  • Beatty, Brian Lee (2006a). "Rediscovered specimens of Cornwallius (Mammalia, Desmostylia) from Vancouver Island, British Columbia, Canada" (PDF). Vertebrate Palaeontology. 1 (1): 1–6. Retrieved 16 June 2013.
  • Beatty, Brian Lee (2006b). "Specimens of Cornwallius sookensis (Desmostylia, Mammalia) from Unalaska Island, Alaska". Journal of Vertebrate Paleontology. 26 (3): 785–87. doi: 10.1671/0272-4634(2006)26[785:socsdm]2.0.co;2. JSTOR  4524623. S2CID  85919379.
  • Cornwall, I. E. (1922). "Some Notes on the Sooke Formation, Vancouver Island, B.C.". Canadian Field-Naturalist. 36 (7): 121–23. doi: 10.5962/p.338167.
  • Hay, O. P. (1923). "Characteristics of sundry fossil vertebrates". Pan-American Geologist. 39: 101–20. OCLC  38855496.