(n.) An extinct genus of horses from the Pliocene deposits. Each foot had a single toe (or hoof), as in the common horse.
Webster's Revised Unabridged Dictionary
| APA | Webster's. (2011). pliohippus. Retrieved September 21, 2026, from http://smartdefine.org/pliohippus/definitions/2046540 |
| Chicago | Webster's. 2011. "pliohippus" http://smartdefine.org/pliohippus/definitions/2046540 (accessed September 21, 2026). |
| Harvard | Webster's 2011, pliohippus, Smart Define, viewed 21 September, 2026, <http://smartdefine.org/pliohippus/definitions/2046540>. |
| MLA | Webster's. "pliohippus" 27 May 2011. Web. 21 September 2026. <http://smartdefine.org/pliohippus/definitions/2046540> |