eohippus


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eohippus:

see horsehorse,
hoofed, herbivorous mammal now represented by a single extant genus, Equus. The term horse commonly refers only to the domestic Equus caballus and to the wild Przewalski's horse.
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Eohippus

 

a genus of primitive fossil mammals of the family Equidae. Eohippus, which lived in the early Eocene, measured approximately 0.5 m in length and had tetradactyl forehooves. The animal was similar to Hyracotherium. Remains of Eohippus have been found in deposits in North America.

Eohippus

[‚ē·ō′hip·əs]
(paleontology)
The earliest, primitive horse, included in the genus Hyracotherium; described as a small, four-toed species.
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References in periodicals archive ?
The first fossil horse, Eohippus, was about the size of one of today's donkeys.
If standard biology is adequate to show that breast implants don't cause autoimmune diseases, why is it useless to help us decide if eohippus is the ancestor of the modern horse?
And the evolution of the horse, from tiny Eohippus to the modern horse, is often cited as the classic example of Cope's Rule.