Orohippus

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Orohippus

fossil mammal genus

Learn about this topic in these articles:

comparison to Eohippus

In Eohippus
Hyracotherium was succeeded by Orohippus, which differed from Hyracotherium primarily in dentition.
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modern horse evolution

In horse: Evolution of the horse
Orohippus, a genus from the middle Eocene, and Epihippus, a genus from the late Eocene, resembled Eohippus in size and in the structure of the limbs. But the form of the cheek teeth—the four premolars and the three molars found in each half of both…
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