Template:Cook, 1922

• Cook, H.J. 1922. A Pliocene fauna from Yuma County, Colorado, with notes on the closely related Snake Creek Beds of Nebraska. Proceedings of the Colorado Museum of Natural History 4(2): 3–15.  
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Nomenclatural acts

• Date of publication: 1922

New names

• Machairodus coloradensis (n. sp.)