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Castoroides
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Skull of Castoroides.
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Skull of Castoroides.
Skull of Castoroides.

Castoroides

extinct rodent genus
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Article History

Castoroides, extinct genus of giant beavers found as fossils in Pleistocene deposits in North America (the Pleistocene Epoch began 2.6 million years ago and ended 11,700 years ago). Castoroides attained a length of about 2.5 metres (7.5 feet). The skull was large and the gnawing teeth strongly developed. In Europe a similar form of giant beaver, Trogontherium, paralleled the development of Castoroides.

This article was most recently revised and updated by Richard Pallardy.