Pliohippus

Pliohippus

  extinct genus of horses (horse) that inhabited North America during the Pliocene Epoch (5.3–1.8 million years ago). Pliohippus, the earliest one-toed horse, evolved from Merychippus, a three-toed horse of the preceding Miocene Epoch (23–5.3 million years ago). The teeth of Pliohippus are taller and more complexly folded than those of earlier horses; these features indicate a greater dependence on grazing than browsing for food. Because of its diet and its specializations for running, it is likely that Pliohippus lived on open plains.

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  • pliohippus — plio·hip·pus …   English syllables

  • pliohippus — ˌplīōˈhipəs noun Usage: capitalized Etymology: New Latin, from pleio + hippus : a genus of extinct one toed horses from the No. American Pliocene having strongly hypsodont molar teeth …   Useful english dictionary

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