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Synthetodus

Northern Sharks
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5 Comments

siteseer

Posted

I don't think I've seen one of those before. That's cool, weird one.

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Al Dente

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I'm pretty sure this is Gluteus minimus (no joke) described in the paper "Fossils of Uncertain Affinity from the Upper Devonian of Iowa" Davis and Semken Jan. 1975 Science. I collected this site 20 years ago and managed to find several of these along with dozens (hundreds?) of micro shark teeth from a layer that is less than 2 inches thick. All the shark teeth were damaged due to compaction of the sediment.

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Northern Sharks

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Interesting. After a google search, it seems you may be correct. Do you (or anybody) have access to that paper? A quick check on the paleobiology database shows no result for Gluteus. I have a few micro teeth as well, but too small for me to photograph.

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Al Dente

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Interesting. After a google search, it seems you may be correct. Do you (or anybody) have access to that paper? A quick check on the paleobiology database shows no result for Gluteus. I have a few micro teeth as well, but too small for me to photograph.

Try this link. Click on the title and it should lead you to a pdf. If not, let me know and I'll send you a pdf.

http://topics.cs.princeton.edu/Science-100/browser/docs/1975/1739069.html

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I just picked up around 100 of these in Iowa. They are odd little things.

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