^Harington, C. R. (1969). “Pleistocene remains of the lion-like cat (Panthera atrox) from the Yukon Territory and northern Alaska”. Canadian Journal of Earth Sciences6 (5): 1277–1288. doi:10.1139/e69-127.
^Harington, C. R. (1969). “Pleistocene remains of the lion-like cat (Panthera atrox) from the Yukon Territory and northern Alaska”. Canadian Journal of Earth Sciences6 (5): 1277–1288. Bibcode: 1969CaJES...6.1277H. doi:10.1139/e69-127.
^Sotnikova, M.V.; Foronova, I.V. (2014). “First Asian record of Panthera (Leo) fossilis (Mammalia, Carnivora, Felidae) in the Early Pleistocene of Western Siberia, Russia”. Integrative Zoology9 (4): 517–530. doi:10.1111/1749-4877.12082. PMID24382145.