I'm not sure what these are.

[Pleuromya]

Hello, I picked these up among some gravel.  Is anybody able to identify them? Sorry there's no scale, the first one is about 4cm, and the two in the second picture are each about 2cm.

Thanks.

 

 

 

Edited May 10, 2020 by Chris Jones
I accidentally somehow duplicated a post, so rather than delete it, I just swapped it for a different fossil.

[Rockwood]

4cm puts the first one near the tabulate bryozoan convergence point when it comes to size. I'm thinking bryozoan just might be a better fit though. 

The second looks like oolitic limestone.

[Pleuromya]

9 minutes ago, Rockwood said:

4cm puts the first one near the tabulate bryozoan convergence point when it comes to size. I'm thinking bryozoan just might be a better fit though. 

The second looks like oolitic limestone.

That's great, thanks.