Fossil shown is actually 1.5 inch wide, and found as an erratic on the beach.

Identification has found this to be part of the Porifera family (fossilise Sponge), and I believe sub class to be Coeloptychium, but my research has found this species to be from France ? If anyone can help to identify this further please e-mail me at webeditor@hullgeolsoc.org.uk