Stromatolites
From the greek STROMA-bed and LITOS-roca, they are rock formations formed under water by the residuals generated by microorganism and bacterias.
Cuatro Cienegas is one of very few places were there are still living Stromatolites, Stromatolites existed in prehistoric times, and were the basis for oxygen generation.
The stromatolites at Cuatro Cienegas are special since are the only ones inland not around sea on earth.
They have been studied by lots of scientist including NASA.
Very interesting
Kisses
Jessica
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