This Specimen has been sold.
5.8" Pennsylvanian, Fossil 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, similar to the formation of stromatolites.. The piece is 5.8"x2" and comes with an acrylic display stand.