
Arsinoitherium is an extinct genus of paenungulate mammal related to elephants, sirenians, hyraxes and the extinct desmostylians, as well as to other extinct embrithopods. These species were elephant-like herbivores that lived during the late Eocene and the early Oligocene of northern Africa from 36 to 30 million years ago, in areas of tropical ra...
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http://en.wikipedia.org/wiki/Arsinoitherium

genus of extinct large, primitive, hoofed mammals that have been found as fossils in Egypt in deposits of the Eocene Epoch (56 million to 34 million ...
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http://www.britannica.com/eb/a-z/a/105

Arsinoitherium was an early, rhinoceros-like mammal that lived during the early Oligocene (about 38 to 23 million years ago). Although it looked like a rhinoceros, it is more closely related to elephants. This large quadruped had 5-toed legs. It had 2 huge, conical, hollow horns made of bone on its snout. It was about 11.5 feet (3.5 m) long and abo...
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arsinoitherium An animal of an extinct genus of mammals, as large as the rhinoceros, with two large and two small horns.
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