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A couple of questions regarding Sulphur River finds


FredFossil

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FredFossil

Made another trip to the Sulphur and had a couple questions regarding two of my finds:

 

First, is this coprolite?  Not sure how to identify it, other then it looks like it.

 

Second, I assumed this was a shark centrum when I found it, but looking at other images online, they are seem to be quite a bit thicker.  Mine is about 2" in diameter and 1/4" thick. Any thoughts?

 

Thanks!

Sulphur River 5-5-17.jpg

Sulphur 5-5-17.jpg

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Can You post more angles of the suspect coprolite? And the other side of the vert.?

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Definitely a shark or ray centrum.

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I will mention what Lori @GeschWhat usually suggests as a test for coprolite - wash it with soap and water, dry it completely, and then see if it sticks to your tongue - if it sticks, then it's coprolite!  (I know this from experience - Lori sent me some coprolite and it really does stick!!!)

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FredFossil

Thanks for the comments. Here are more pics. 

I administered the "lick test" and it was wasn't sticky, so that question appears to be answered.

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image.jpeg

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image.jpeg

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The vert. looks crushed and that may account for the thin nature of it.

Not all coprolites will stick to Your tongue. There is still hope!

@Carl may have an idea as well as @GeschWhat, wait for them to chime in on the poop.

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fifbrindacier

If it is a coprolite you might see little inclusions in it.

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GeschWhat

I'm 99% sure that is a beautiful little carnivore coprolite. It looks very much like some I have in my collection from the Sulphur River. Tony is right. Not all coprolites stick to your tongue, it depends on the fossilization process. None of mine from that area stick either. I believe they are primarily apatite, which is a form of calcium phosphate that isn't porous. Awesome find!

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If I found that I would be pretty cool with it being a coprolite. And a nice one! And bone bits in it?

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FredFossil

Thanks for everyone's input.  I'll gladly take your expert opinions and call it coprolite!

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