Ancient Microorganisms Helped Build 3.4-billion-year-old Stromatolite Rock Structures
Thursday, July 16, 2009 - 23:14
in Paleontology & Archaeology
Stromatolites are dome- or column-like sedimentary rock structures that are formed in shallow water, layer by layer, over long periods of geologic time. Now, researchers have provided evidence that some of the most ancient stromatolites on our planet were built with the help of communities of equally ancient microorganisms.