Giant Beaver

Last Modified 02/04/2010

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Name:  Castoroides ohioensis

Geologic Age:  Pleistocene
Stratigraphic detail:  River Find
Location:  Levy Co., Florida
Comments:  Castoroides ohioensis was the Giant Beaver of the Pleistocene, ranging from just beneath the Arctic Circle to Florida.  It was about the size and weight of a black bear, 7 feet long and up to 450 lb.  It became extinct along with most of the rest of the Pleistocene megafauna 10,000 years ago.  See http://www.beringia.com/02/02maina6.html.  Also interesting is the view of Native Americans who encountered the Giant Beaver and their legends that have been passed down through the millennia through their oral traditions: http://www.bio.umass.edu/biology/conn.river/nalegend.html.  The Giant Beaver was in most regards similar to the modern beaver, Castor canadensis, except for the vertical ridges on its incisors and a narrower tail.  It was probably less mobile than the modern beaver as well.  It is thought to have lived in swampy areas adjacent to lakes. It seems to have been most prolific in the states just south of the Great Lakes during the Ice Age.

 Although isolated teeth are occasionally found, skull material is extremely rare.  Perhaps less than 10 skulls are  in private collections, most being inferior to this fine specimen.  Most reside in public museums, never to be seen on the market.  This skull is 13 1/2" long and 9 inches wide and was found in Levy Co., Florida.   There is about 10% - 15% superbly performed restoration.  The upper incisors are original to the skull. The lower jaws and other teeth have been composited.  You will see dozens of Smilodon skulls on the market before you see another one of these!  Total numbers found are  less than a tenth of the number of LaBrea Smilodon skulls found.  Visually, this is as impressive as a Smilodon skull.  It comes with a curly maple base. Admittedly this is a high end piece, but this  will likely become the centerpiece of any collection.

World Class Giant Beaver Skull