File:Spermophilus richardsonii (fossil ground squirrel).jpg
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Summary
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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 |
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| Source | https://www.flickr.com/photos/jsjgeology/31566450184/ |
| Author | James St. John |
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 09:25, 20 January 2017 | | 2,205 × 1,764 (2.66 MB) | FunkMonk | User created page with UploadWizard |
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