Epihippus is an extinct genus of the modern horse family Equidae that lived in the Eocene, from 46 to 38 million years ago. Epihippus is believed to have evolved from Orohippus, which continued the evolutionary trend of increasingly efficient grinding teeth. Epihippus had five grinding, low-crowned cheek teeth with well-formed crests. A late speci...
Found on
http://en.wikipedia.org/wiki/Epihippus
(from the article `horse`) ...North America. During the remainder of the Eocene, the prime evolutionary changes were in dentition. Orohippus, a genus from the Middle Eocene, ...
Found on
http://www.britannica.com/eb/a-z/e/36
No exact match found.
