Orohippus
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Related to Orohippus: mesohippus, Miohippus
Or`o`hip´pus
n. | 1. | (Paleon.) A genus of American Eocene mammals allied to the horse, but having four toes in front and three behind. |
Webster's Revised Unabridged Dictionary, published 1913 by G. & C. Merriam Co.