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PORTAIL D'INFORMATION GÉOGRAPHIQUE

Canyon Creek: a late Pleistocene vertebrate locality in interior Alaska

Auteurs :
WEBER, F. R.
HAMILTON, T. D.
HOPKINS, D. M.
REPENNING, C. A.
HAAS, H.

Description :
The Pleistocene fauna from Canyon Creek consists of rodents (indicated by burrows), Mammuthus primigenius (woolly mammoth), Equus lambei (Yukon wild ass), Camelops hesternus (western camel), Bison sp. cf. B. crassicornis (large-horned bison), Ovis sp. cf. O. dalli (mountain sheep), Canis sp. cf. C. lupus (wolf), Lepus sp. cf. L. othus or L. arcticus (tundra hare), and Rangifer sp. (caribou). This assemblage suggests an open landscape in which trees and tall shrubs were either absent or confined to sheltered and moist sites. Camelops evidently was present in eastern Beringia during the middle Wisconsin interstadial interval but may have disappeared during the following glacial episode. The stratigraphic section at Canyon Creek appears to demonstrate that the Delta Glaciation of the north-central Alaska Range is at least in part of early Wisconsin age and was separated from the succeeding Donnelly Glaciation by an interstadial rather than interglacial episode.


Type de document :
Article de périodique

Source :
Quaternary research New York, 1981, vol. 16, n°. 2, p. 167-180, Références bibliographiques : 23 réf.

Date :
1981

Langue :
Anglais
Droits :
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