Possible coprolite?

[Mike_363]

I've started finding these on my East Texas property recently. Pictures of two different rocks are attached.

One of the forms in the rocks is crystallized. Picked up off the ground where there's iron ore and hematite. Your feedback is appreciated.

 

[Rockwood]

Close, but I'm afraid my vote is nay.

[abyssunder]

Bivalve (maybe rudist) fragments in a stone?

[Rockwood]

17 minutes ago, abyssunder said:

Bivalve (maybe rudist) fragments in a stone?

Closer.

[Mike_363]

I've looked at a map and I'm in the middle of the weches formation. I When I look at these I wondered if some kind of bottom feeder left them. They look so full of little worms and other things that may be in water. But thanks for the feedback guys 

[abyssunder]

If the sediments are from the K-Pg mass extinction level, there could be a good chance for rudist bivalve fragments in the deposited sediment, IMO.

[Mike_363]

Fascinating. Didn't know about that. Great information for me to look into. Thanks again

[JohnJ]

On 9/12/2021 at 4:35 PM, Mike_363 said:

They look so full of little worms and other things that may be in water.

 

Think of what you see as the eroded cross sections of fossil shell hash.  Sometimes pieces of this 'shelly' matrix are harder than others and erode as isolated stones.