Fossil stromatolite / microbial mat - Pennsylvanian age , Haskell co, Oklahoma

Description

Here is an interesting slab from Oklahoma. It features a microbial mat structure, which is something formed on the way to becoming a stromatolite. It's an interesting specimen.
Name:
Stromatolite / Microbial Mat
Locality: Hartshorne sandstone, Haskell county, Oklahoma
Size: Rock measures 10 x 4 x 1.8 cm
Age: Pennsylvanian age - 305 million years old
Feel free to ask questions!
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Returns accepted within 7 days of arrival for refund of purchase price but not refunded shipping. Returns have to be sent also via priority mail with delivery confirmation and insurance.
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