Bover, Pere; Llamas, Bastien; Thomson, Vicki A.; Pons, Joan; Cooper, Alan; Mitchell, Kieren J. (2018). Molecular resolution to a morphological controversy: The case of North American fossil muskoxen Bootherium and Symbos. Molecular Phylogenetics and Evolution(англ.). 129: 70—76. doi:10.1016/j.ympev.2018.08.008. PMID30121342.
Kropf, M.; Mead, J. I.; Anderson, R. S. (2007). Dung, diet, and the paleoenvironment of the extinct shrub-ox (Euceratherium collinum) on the Colorado Plateau, USA. Quaternary Research. Elsevier. 67 (1): 143—151. Bibcode:2007QuRes..67..143K. doi:10.1016/j.yqres.2006.10.002. Accessed 2008-08-19.
Kropf, M.; Mead, J. I.; Anderson, R. S. (2007). Dung, diet, and the paleoenvironment of the extinct shrub-ox (Euceratherium collinum) on the Colorado Plateau, USA. Quaternary Research. Elsevier. 67 (1): 143—151. Bibcode:2007QuRes..67..143K. doi:10.1016/j.yqres.2006.10.002. Accessed 2008-08-19.
Bover, Pere; Llamas, Bastien; Thomson, Vicki A.; Pons, Joan; Cooper, Alan; Mitchell, Kieren J. (2018). Molecular resolution to a morphological controversy: The case of North American fossil muskoxen Bootherium and Symbos. Molecular Phylogenetics and Evolution(англ.). 129: 70—76. doi:10.1016/j.ympev.2018.08.008. PMID30121342.