Pleistocene ungulates from the Bow River gravels at Cochrane, Alberta

• Published in: Canadian Journal of Earth Sciences
• Main Author: Churcher, C. S.
• Format: Article in Journal/Newspaper
• Language: English
• Published: Canadian Science Publishing 1968
• Subjects: General Earth and Planetary Sciences; Rangifer tarandus
• Online Access: http://dx.doi.org/10.1139/e68-145; http://www.nrcresearchpress.com/doi/pdf/10.1139/e68-145

Five ungulates are reported from gravels comprising the second major terrace above the Bow River's north bank at Cochrane, Alberta. These ungulates are Cervus canadensis (wapiti), Rangifer tarandus (caribou), Ovis canadensis (mountain sheep), Bison occidentalis (extinct western bison), and Equus conversidens (extinct Mexican ass). E. conversidens was previously known from middle and late Pleistocene beds of the southern United States and Mexico and is here reported from the post-Wisconsin Pleistocene of Alberta and possibly Saskatchewan. Radiocarbon analysis of Bison bones from the gravels yielded two dates that averaged 11 065 B.P.