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Im at a loss for This one Pennsylvanian Fish Mouth Plate? (Missouri)


Samurai

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Location: Missouri

Age: Pennsylvanian 

Stratigraphy: Muncie Creek redeposted phosphate nodules/concretions (Iola formation)

 

 

Here is another very odd find, it was just so weird looking I had to post it. Sadly it has been missing the other half long before I got to it. I have never seen anything quite like it, and I do not recognize any common pennsylvanian ids. I will say cephalopod material has been found in these nodules as well.

 

20240704_090050.thumb.jpg.3b71a473318b56e556dbd233244a35f5.jpg

Here are some images that makes it look inverted

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20240704_085050.thumb.jpg.68828b6e9d7136253af036452f70ad96.jpg

 

True inverted:

FB_IMG_1720040638755.jpg.4623d120e3d89cffd8f5779273d8d077.jpg

 

There is another oval-shaped depression on the lower left leading into the nodule

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Size:20240704_085133.thumb.jpg.fc25925d72d64d9650161d5a1b8ede49.jpg

Edited by Samurai
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14 minutes ago, westcoast said:

Have you considered echinoid?

It could be, that seems most probable. It would be the first occurrence I have seen of echinodermata in these deepwater nodules. Especially one that is phosphate replaced. 

 

 

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