Wilson, M.C., L.V. Hills, and B. Shapiro (2008). «Late Pleistocene northward-dispersing Bison antiquus from the Bighill Creek Formation, Gallelli Gravel Pit, Alberta, Canada, and the fate of Bison occidentalis». Canadian Journal of Earth Sciences. 45 (7): 827–859. Bibcode:2008CaJES..45..827W. doi:10.1139/E08-027 !CS1 manut: Nomes múltiplos: lista de autores (link)
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Wilson, M.C., L.V. Hills, and B. Shapiro (2008). «Late Pleistocene northward-dispersing Bison antiquus from the Bighill Creek Formation, Gallelli Gravel Pit, Alberta, Canada, and the fate of Bison occidentalis». Canadian Journal of Earth Sciences. 45 (7): 827–859. Bibcode:2008CaJES..45..827W. doi:10.1139/E08-027 !CS1 manut: Nomes múltiplos: lista de autores (link)