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Gastropod Or Crinoid?


Bev

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Ordovician. A shale I think. SE MN.

My first impression was a long narrow gastropod, and then I saw Elvis!!!

Then it was a crinoid.

Then it was a ceph.

So, I don't have a clue. :)

Do you?

Thanks for looking!

Bev :)

The more I learn, I realize the less I know.

:wacko:
 
 

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This is one I have never seen before. Any thoughts on what it might be? The closest I can come is a Subulites sp.

Edited by Bev

The more I learn, I realize the less I know.

:wacko:
 
 

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Reminds me of an extra tall Fusispira which is a subgenus of Subulites. The appearance of a spiral is what is pointing all of us toward gastropoda but there are a few weird crinoids with strangely developed anal sacs that sort of come close. But the ones I'm thinking of are much younger of Carboniferous age.

Edited by erose
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Its just a drawing, but on page 474, plate 195, of the Index Fossils of North America, it shows a Subulites regularis that seems pretty close. Also indicates it was a Minnesota find.

Anyway, first one I have found!

And yes, I have seen pics of crinoids that aren't dissimilar to this. And then of course, cephs have chambers...

The more I learn, I realize the less I know.

:wacko:
 
 

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Gallery for images of Fossil Jewelry, Sculpture & Crafts
 

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