![](http://www.rhinoresourcecenter.com/style_images/1/cat_arrow.gif) | Dashzeveg, D.; Hooker, J. J., 1997. New ceratomorph perissodactyls (Mammalia) from the Middle and Late Eocene of Mongolia - Their implications for phylogeny and dating. Zoological Journal of the Linnean Society of London 120: 105-138
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![](http://www.rhinoresourcecenter.com/style_images/1/cat_arrow.gif) | Hooker, J. J., 1984. A primitive ceratomorph (Perissodactyla, Mammalia) from the early Tertiary of Europe. Zoological Journal of the Linnean Society of London 82: 229-244
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