Mexico, Quintana Roo, Bacalar, stromatolites are real living fossils, formed by cyanobacteria, they are the oldest forms of life on our planet, the Bacalar lagoon is the largest colony of freshwater stromatolites in the world

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Keywords: america, blue, central, composition, day, geology, lagoon, lake, landmark, landscape, mexico, outdoors, people, quintana, roo, state, tourism, turquoise, vertical, water