Fossil Identification Request

[BLT]

Hello,

 

I found this small rock on the Tennessee River. (Mississippian/Tuscumbia Limestone) I’m hoping someone can tell me what all is in it. 
 

Thanks!

Edited December 29, 2021 by BLT
Added pics

[ClearLake]

Looks to be a piece of bryozoan perhaps.

[BLT]

I’d wondered the same thing, but wasn’t sure. Thanks!

[Plax]

some kind of fish or shark part for me but am not good with paleozoic vertebrates.

[Carl]

I agree with Plax - this looks like a bit of Paleozoic shark tooth to my eye.

[jdp]

Might be Helodus or something similar. Regardless, holocephalan toothplates.

Edited December 29, 2021 by jdp

[BLT]

Thank you all!