What are Stromatolites?
Stromatolites, formerly defined as: “laminated organo-sedimentary structures formed by the trapping and binding, and/or precipitation of minerals by microorganisms”, can be thought of as microbial mats in which a rock-like layer of either sand or precipitated minerals is also present. Fossil stromatolites constitute our earliest and most pervasive record of life on Earth. Although many stromatolites are fossils, there are a number of locations on the modern-day Earth where stromatolites are still forming.