Three-dimensional preservation of cellular and subcellular structures suggests 1.6 billion-year-old crown-group red algae

Three-dimensional preservation of cellular and subcellular structures suggests 1.6 billion-year-old crown-group red algae

Author summary The last common ancestor of modern eukaryotes is generally believed to have lived during the Mesoproterozoic era, about 1.6 to 1 billion years ago, or possibly somewhat earlier. We studied exquisitely preserved fossil communities from ~1.6 billion-year-old sedimentary rocks in central India representing a shallow-water marine environment characterized by photosynthetic biomats.

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