“Stromatolite, 25 million years, France, Clermont-Ferrand #2 – 147 g” has been added to your cart. View cart
Stromatolite, 25 million years old, France, Clermont-Ferrand #10 – 170 g
41,62 $
New find !!!
Stromatolites are fossilized carbonate structures.
These are among the oldest known fossils, dating back to 3.5 Ga (in Australia). They were formed by cyanobacteria (“blue-green algae”). Using the sun to harness energy, they produced and increased the oxygen content of the earth’s atmosphere to around 20%, enabling life to flourish.
These 25 million-year-old stromatolites were found in France, in the heart of the city of Clermont-Ferrand, at the summit of a volcano called Montjuzet.