Name/Title
S23.02.027Description
Close-up image of Stromatolite fossils in Columbus Limestone at the Marblehead Quarry, Ottawa County, Ohio. Bedrock is from the Devonian Geologic Period. Photograph was taken by Merrianne Hackathorn.
This slide image included in the USGS National Digital Catalog for NGGDPP Grant G15AP00115 in FY2015.Context
Closeup of fossil outline in limestone. Marblehead Quarry in Ottawa County, Ohio.