US Geological Survey
Date of this Version
1972
Abstract
The first discovery of Steller's Sea Cow (Hydrodamalis) in place in Pleistocene deposits has been made in interglacial beach sand and gravel 35 m above present sea level on Amchitka, Aleutian Islands. Uranium series dating of the bone indicates that it is about 135,000 yrs old.
Comments
Published in the Geological Society of America Bulletin, v. 83, p. 867-870, March 1972.