Any Ideas What This Might Be? This Is From The Cretaceous Eagle Ford Formation In Texas And Is Approx. 3.5" X 2.5"

[claire01]

Thanks for any help!

[Xiphactinus]

Top photo looks like a very worn fragment of Inoceremus clam.

[tmaier]

Need more views at different angles of that top image.

[claire01]

Thanks, here you go:

Edited to say: The exposed fossil has a very sand papery feel. Very unlike what I am used to finding.

Another picture:

Edited September 7, 2014 by claire01

[tmaier]

It seems to be a real fossil, but I can't find any diagnostic features to lead towards a definition of it.

It might be two fossils.

Unless somebody can see something here, I'd have to say that it is indeterminate until it is exposed more.

[claire01]

The matrix is extremely hard and prepping has proved to be difficult.

[tmaier]

I'm thinking it is a chert nodule, maybe with a fossil as the core of the chert. That would make it REALLY hard to work.

And it would chip like glass.

[claire01]

That's why I was seeking opinions fromTFF. I was hoping someone recognized what it might be and if it was worth the trouble to try to expose more. Thanks for your input

Edited September 8, 2014 by claire01