| Barbour, E.H., 1934. A new rhinoceros mount, Trigonias osborni. Bulletin of the Nebraska State Museum 1: 299-302
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| Barbour, E.H., 1906. Notice of a new miocene rhinoceros, Diceratherium Arikarense. Science (n.s.) 24 (624): 780-781
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| Barbour, E.H., 1906. Notice of a new fossil rhinoceros from Sioux County Nebraska. Nebraska Geological Survey (2) 4: 312-318
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