This Specimen has been sold.
6.8" Fossil Stromatolite/Microbial Mat - Oklahoma
This is Pennsylvanian aged trace fossil from the Hartshorne Sandstone of Oklahoma. Also known as "MISS" (Microbially Induced Sedimentary Structures) it's the fossilized ichnofossils left behind by a colony of microbes. The piece is 6.8"x2.3"" and comes with an acrylic display stand.