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Upper Pennsylvanian Micro (2)


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Hi all!

Under the presumption these are echinoderm I've been searching for anatomical features, particularly disarticulated crinoid and archaeocidaris of which both are plentiful in the matrix.

In my searching I've been unable to find anything that even remotely resembles these pieces.

Any input is much appreciated.

 

Plattsburg fm. - Hickory Creek sh.

I attached a group photo of some of them I found, followed by 4 select specimens showing each side front and back.

 

For scale, field of view is ~1cm.

 

Group shot

599b7407ec852_IMG_0021(4).thumb.JPG.a60f44d4cbcfcb7ee0e679019425a517.JPG

 

Front

599b72b8948cc_IMG_0024(2).thumb.JPG.30785f349fbb9440e15b821518f430cc.JPG

 

Back

599b738eca8a5_IMG_0020(3).thumb.JPG.623343dee7a1945509c422fae89f33fd.JPG

 

Front

599b745184e40_IMG_0003(2).thumb.JPG.5a907793cac83bfec4625e0d1a093fde.JPG

 

Back

599b75884b019_IMG_0005(2).thumb.JPG.a61e65679736eb18fad60cb69bee51f4.JPG

 

Front

599b76202f3cd_IMG_0007(2).thumb.JPG.3cd3d7a425252a99e25b8a8d8ba5876d.JPG

 

Back

599b7634b62a2_IMG_0011(2).thumb.JPG.f6e56f6ef326d1171e8c243c7074788d.JPG

 

Front

599b768eb70ad_IMG_0018(2).thumb.JPG.2c3ad53bb00832a3d77f195542c5e3f0.JPG

 

Back

599b76abc4472_IMG_0013(2).thumb.JPG.29c14abe7097b31bc416082c9bfc80f2.JPG

 

Thank you all!

 

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Micro arrowheads! Finely proof there really are fairies and sprites.

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6 minutes ago, ynot said:

Micro arrowheads! Finely proof there really are fairies and sprites.

:rofl::fistbump:

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I hope nobody quotes me on this ,but are Clathrocrinus ossicles a possibility?

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fifbrindacier

Tony is in a laughing mood today.:D

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8 hours ago, doushantuo said:

I hope nobody quotes m on this ,but are Clathrocrinus ossicles a possibility?

Thank you, sir! You steered me in the right direction.

While searching images of Clathrocrinus I ran across an old TFF thread...

http://www.thefossilforum.com/index.php?/topic/50397-possible-aristotles-lantern/

I'm going to keep looking at different species as well as the one you mentioned.

Thanks again!

 

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You mean,parts of the buccal apparatus* of echinoids?

*"Aristotle's Lantern "

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18 minutes ago, doushantuo said:

You mean,parts of the buccal apparatus* of echinoids?

*"Aristotle's Lantern "

No. If you follow the thread that's not what they are.

Apparently they are calyx plates/spines of certain crinoid species.

I'll have to try researching now to see which ones are in my deposits, including Clathrocrinus.:)

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