Fossil

I'm not sure if that's a fossil or not. I don't think the pits in the rock are anything, but the vague whitish imprint may be some kind of kelp or something. But it could also be an inclusion in the rock matrix itself.

Is there any small-scale detail to the imprint which might indicate biology?

Thank you for the response. There isn't anything telling as far as small scale details.
I added a few photos of close ups of whitish area. The white rock is about a 1/4" thick through out.

It would also help to know the approximate age of the surrounding areas where this was found. And to know the type of Rock (Sedimentary being the most common for imprints like that).

I looked at the new photo's... and I still can't tell. It could be a fossil, or it could be inconsistencies in the rock. Also, I don't normally expect to see nodules and pockets in the type of rock which forms fossils, but I don't think it's "impossible", only less common.

We have a member who is a professional Geologist. He may be able to help.