Mystery Fossil

[TulsaPllTbFndr]

My buddy found this fossil recently while searching the river. We aren't really sure what kind it is. Is there anyone with some fossil knowledge that could offer us some insight?

 

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[flinthunter]

Maybe a section of a crinoid calyx.

 

[Red-Coat]

See my response in the "Fossils" section:

http://www.treasurenet.com/forums/fossils/626595-mystery-fossil.html