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Cornwallius

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Cornwallius Temporal range: Late Oligocene PreꞒ Ꞓ O S D C P T J K Pg N ↓
Scientific classification
Domain:	Eukaryota
Kingdom:	Animalia
Phylum:	Chordata
Class:	Mammalia
Order:	†Desmostylia
Family:	†Desmostylidae
Genus:	†Cornwallius Hay 1923
Species:	†C. sookensis
Binomial name
†Cornwallius sookensis (Cornwall 1922)

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 sookensisbyHay 1923.^[3]

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

Notes[edit]

^ Cornwallius in the Paleobiology Database. Retrieved 16 June 2013.

^ ^a ^b Muir Creek (Oligocene of Canada) in the Paleobiology Database. Retrieved 16 June 2013.

^ Cornwallius sookensis in the Paleobiology Database. Retrieved 16 June 2013.

^ Beatty 2006b

References[edit]

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.