Last interglacial western camel ( Camelops hesternus ) from eastern Beringia

Last interglacial western camel ( Camelops hesternus ) from eastern Beringia Western camel ( C. hesternus ) fossils are rare from Eastern Beringia, thus there is little available information on their chronology, paleoecology, and biogeography in this region. In August of 2010, a partial proximal phalanx of a western camel was recovered from a sedimentary exposure along the White River, in the formerly glaciated terrain of southwest Yukon, northwest Canada. The fossil specimen was recovered in situ from sediments that are correlated by stratigraphic, tephra and radiocarbon data to the Marine Isotope Stage (MIS) 5 interglacial period (Sangamonian). Associated paleoenvironmental data indicates that this western camel inhabited a shrub tundra ecosystem that did not include spruce trees or boreal forest during a relatively cold interval between MIS 5e and 5a. This is the oldest reliably dated western camel fossil from Eastern Beringia and supports the model of range expansion for this species to the high latitudes of northwest North America during the last interglacial ( sensu lato ). http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Quaternary Science Reviews Elsevier

Last interglacial western camel ( Camelops hesternus ) from eastern Beringia

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Publisher
Elsevier
Copyright
Copyright © 2011 Elsevier Ltd
ISSN
0277-3791
eISSN
1873-457X
D.O.I.
10.1016/j.quascirev.2011.06.010
Publisher site
See Article on Publisher Site

Abstract

Western camel ( C. hesternus ) fossils are rare from Eastern Beringia, thus there is little available information on their chronology, paleoecology, and biogeography in this region. In August of 2010, a partial proximal phalanx of a western camel was recovered from a sedimentary exposure along the White River, in the formerly glaciated terrain of southwest Yukon, northwest Canada. The fossil specimen was recovered in situ from sediments that are correlated by stratigraphic, tephra and radiocarbon data to the Marine Isotope Stage (MIS) 5 interglacial period (Sangamonian). Associated paleoenvironmental data indicates that this western camel inhabited a shrub tundra ecosystem that did not include spruce trees or boreal forest during a relatively cold interval between MIS 5e and 5a. This is the oldest reliably dated western camel fossil from Eastern Beringia and supports the model of range expansion for this species to the high latitudes of northwest North America during the last interglacial ( sensu lato ).

Journal

Quaternary Science ReviewsElsevier

Published: Sep 1, 2011

References

  • Vegetation and paleoclimate of the last interglacial period, central Alaska
    Muhs, D.R.; Ager, T.A.; Begét, J.E.

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