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Tyler Matters

Bison tooth or cow tooth?

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Tyler Matters

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.

IMG_20181012_162445.jpg

IMG_20181012_162456.jpg

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Harry Pristis

 

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

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Tyler Matters

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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