11.9" Fossil Stromatolite/Microbial Mat - Oklahoma

This is a 11.9" wide section of stromatolite "mat" from the Hartshorne Sandstone of Haskell County, Oklahoma. Also known as "MISS" (Microbially Induced Sedimentary Structures) it's the fossilized ichnofossils left behind by a colony of microbes.

Stromatolites are the layered trace fossils of microbial life, primarily cyanobacteria. Some of them date back an astounding 3.4 billion years, making them the oldest record of life on planet Earth. Stromatolites and Microbialites were typically formed in shallow water by the growth of layer upon layer of cyanobacteria, a single-celled, photosynthesizing microbe. These layers often form very beautiful, and colorful banded structures in the rock.

These oxygen producing cyanobacteria were so simple they lacked DNA packaging nucleus, but were responsible for possibly the largest changes the earth has undergone. They were the only major source of atmospheric oxygen critical for the development of more complex life.

Comes with an acrylic display stand.

Haskell County, Oklahoma
Hartshorne Sandstone
11.9 x 6.1", .65" thick
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