‖ Pliohippus Palæont.
(plaɪəʊˈhɪpəs)
Also Pleio-.
[mod.L., f. plio- in Pliocene + Gr. ἵππος horse.]
An extinct genus of horses, the fossil remains of which are found in the Pliocene and Miocene strata of N. America.
| 1874 O. C. Marsh in Amer. Jrnl. Sc. Ser. 3 VII. 252 Pliohippus. A new genus of solipeds, allied to Equus..found in Pliocene strata, Nebraska. 1876 Times 7 Dec., In the recent strata was found the common horse; in the Pleiocene, the Pleiohippus and the Protohippus or Hipparion. |