Sponge
FossilsRoger Weller, geology instructor
wellerr@cochise.edu copyright 2011-R.Weller
Receptaculites-3
sponge-like fossil
still closer view
Clay Center, Ohio
Ordovician
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.