Age: Lower Ordovician
Formation: Oneota Formation
Location: Central Wisconsin
Size: Stromatolite is 4 inches tall
This is a beautiful example of a colorful crystalline stromatolite from the Lower Ordovician of Wisconsin. Authorities believe that stromatolites were formed by masses of green or blue-green algae, or ''cyanobacteria''. This stromatolite specimen is believed to be 495 million years old! This colorful stromatolite has re-crystallized into a stunning display of druzy quartz. The natural, red-orange coloration of this stromatolite is simply beautiful. This is a wonderful example of the crystalline structure of a stromatolite.
A Certificate of Authenticity from EXTINCTIONS is included with this specimen.