Sponge
FossilsRoger Weller, geology instructor
wellerr@cochise.edu copyright 2011-R.Weller
fossil sponge from Pennsylvania-1
Northeast, Pennsylvania, 1/2 mile from Lake Erie

sponge
Photo is copyright free for non-commercial
educational uses.
Just credit photo to B. and G. Grimm/Cochise College.
Specimen found by Georgette Grimm