''Cornwallius'' is an extinct
herbivorous marine mammal of the
family Desmostylidae. ''Cornwallius'' lived along the
North America
North America is a continent in the Northern Hemisphere and almost entirely within the Western Hemisphere. It is bordered to the north by the Arctic Ocean, to the east by the Atlantic Ocean, to the southeast by South America and the Car ...
n Pacific Coast from the
Early Oligocene (
Chattian
The Chattian is, in the geologic timescale, the younger of two ages or upper of two stages of the Oligocene Epoch/Series. It spans the time between . The Chattian is preceded by the Rupelian and is followed by the Aquitanian (the lowest stage ...
) through the Oligocene (28.4
mya
Mya may refer to:
Brands and product names
* Mya (program), an intelligent personal assistant created by Motorola
* Mya (TV channel), an Italian Television channel
* Midwest Young Artists, a comprehensive youth music program
Codes
* Burmese ...
—20.6 Mya) and existing for approximately .
[. Retrieved 16 June 2013.]
The type locality is the Chattian Sooke Formation,
Vancouver Island,
British Columbia, Canada (, paleocoordinates ).
''Cornwallius'' was named by . Its type is ''Desmostylus sookensis'', named by and recombined to ''Cornwallius sookensis'' by .
Fossils have been discovered from
Baja California Peninsula,
Oregon and
Washington coasts, and
Unalaska Island.
Notes
References
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Desmostylians
Oligocene mammals
Prehistoric placental genera
Fossil taxa described in 1923
Oligocene mammals of North America
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