File:Spermophilus richardsonii (fossil ground squirrel).jpg

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English: Spermophilus richardsonii (Sabine, 1822) - fossil ground squirrel skeleton from the Pleistocene of Nebraska, USA. (Nebraska State Museum of Natural History, Lincoln, Nebraska, USA)

This species is also known as Urocitellus richardsonii.

From museum signage: "Ice Age ground squirrel which died in its burrow

Dundy County

10,500 years old (Pleistocene)

This is one of the youngest fossils in our collection. To be considered a fossil, a specimen must be at least 10,000 years old. Carbon-14 dates on this specimen barely exceed this. The skeleton is similar to that of living Richardson's ground squirrels living in the Rocky Mountains and northern Great Plains today. "

Classification: Animalia, Chordata, Vertebrata, Mammalia, Rodentia, Sciuridae

Locality: unrecorded/undisclosed site in Dundy County, southwestern Nebraska, USA

See info. at:

en.wikipedia.org/wiki/Richardson's_ground_squirrel
Date
Source https://www.flickr.com/photos/jsjgeology/31566450184/
Author James St. John

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