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Quo vadis eohippus? The systematics and taxonomy of the early Eocene equids (Perissodactyla)

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Froehlich, David J. (2002): Quo vadis eohippus? The systematics and taxonomy of the early Eocene equids (Perissodactyla). Zoological Journal of the Linnean Society 134 (2): 141-256, DOI: 10.1046/j.1096-3642.2002.00005.x, URL: https://academic.oup.com/zoolinnean/article-lookup/doi/10.1046/j.1096-3642.2002.00005.x

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