Fish soft tissue

[apple3.14]

I have found a lot of shark or other types of fish cartilage and bone from this site but this looks like soft tissue. The preserved part has several layers with 1 side of the layer being mostly smooth and the other having the textured surface. The concretion is about 4cm long. Any information or other possibilities would be very helpful. 

Edited March 1, 2023 by apple3.14
Added side views and other half of concretion

[Misha]

@jdp would probably be able to tell you more about this object

[Fossildude19]

This looks like ornamentation patterns you find on some types of Paleoniscoid fish skulls.

 

[apple3.14]

Thank you. The patterns on the skull are very similar but the side views (I should have posted originally) don't look like a skull. 

[jdp]

Looks like a multi-layered wad of "paleoniscoid" scales. I wonder if this is a coprolite.

[Rockwood]

Or cololite ?    @Carl

[jdp]

yeah could be

[apple3.14]

Thanks everyone for your input and sorry I can't get better pictures. I found quite a few coprolite concretions at this site but none of them looked similar to this one and the layers don't seem to have the shape or thickness of scales.