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Bison tooth or cow tooth?


Tyler Matters

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I got a tooth that I found in a river or creek in central Iowa. I'm not sure exactly where I found it, just that I found it in the water. I was wondering if it is a bison tooth, but I can't tell the difference between bison and cow teeth. I found a partial bison skull with the horns in a creek I go to, so it wouldn't surprise me if it is a bison. I included a picture of the front, back, and grinding surface. Thanks for any help.

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This appears to be half of a horse upper cheek tooth.  These tend to shear along the planes of the tooth enamel, that is, along the long axis of the tooth.

 

 

horseequusgroupupper.JPG

http://pristis.wix.com/the-demijohn-page

 

What seest thou else

In the dark backward and abysm of time?

---Shakespeare, The Tempest

 

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I think you are right. It seems to match some horse teeth I looked up. It is rock, not like bone. I know horses in the Americas died out 8,000 to 12,000 years ago and reintroduced by the Spanish in the 16th century. I learned a little bit. I had no idea horses went extinct here.

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