coral ??

[LSUWIL]

i think its a big hunk of coral with a lil pocket of something in it 

[Ludwigia]

You could be right there.

[Rockwood]

At this resolution (preservation) it's going to be tough to eliminate chaetetid sponge however. 

[HansTheLoser]

Has this fossil a locality and age or did you find it in the road?

[LSUWIL]

hi no dont know where it came from

[Pippa]

It might help if we could have a closer look at this area:

 

[Rockwood]

It's likely impractical here, but a laboratory would probably thin section it at varying angles to be studied under magnification for diagnostic details.