Sponge Fossils
Cochise College 
Photos of Fossils
Geology Home Page

Roger Weller, geology instructor

wellerr@cochise.edu  copyright 2011-R.Weller

sponge-like fossil
still closer view
Clay Center, Ohio

Structure has been replaced with tiny calcite or dolomite crystals.

Receptaculites                                                                                                                                                                 3277b    

Photo is copyright free for non-commercial educational uses. 
Just credit photo to R.Weller/Cochise College.