3.7 billion year old fossil discovered on Greenland: The oldest fossil on Earth

A new discovery was announced two days ago in the international weekly journal of science Nature, one that may shake up our understanding of life on Earth. Scientists unearthed some fossilized 3.7-billion-year-old microbial structures on Greenland. If further tests prove right, these would be the oldest fossilized remains of a (formerly) living organism. The Australian scientists who made the discovery have identified the small cone-shaped features in the stone as Stromatolites. Stromatolites are complex, layered, biochemical structures formed in shallow water by the trapping, binding, and cementation of sedimentary grains of microorganisms….

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