Rodent lower jawbone ID

[Micah]

I found this in a creek leading to Grove Lake in Antelope county NE (near Ashfall fossil beds) I've found a lot of bone fragments and teeth there before, but this find was particularly interesting. Anyone know what type of rodent it is from and if it is from the same time period as the many mammal fossils at ashfalls?

[Bguild]

Looks beaver-y to me.

[Peat Burns]

Maybe compare with muskrat (Ondatra zibethicus)

[mossyfern9564]

Groundhog / woodchuck?  Too small for beaver.  Also, are you sure this is fossilized?  It looks newer (and very clean!).

[Fossildude19]

I think vole could be another candidate.  

 

Meadow Vole

Link to Website

 

 

[abyssunder]

Vole.

 

excerpt from Atlas of Animal Bones. For Prehistorians, Archaeologists and Quaternary Geologists - Elisabeth Schmid; Elsevier, New York, 1972

[Micah]

Thanks all!