Scientists say that microbial mats built 3.4-billion-year-old stromatolites

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Date: 2015-03-04 01:05:35 Paleontology Microbiology Evolutionary biology Cyanobacteria Archean John P. Grotzinger Stromatolite Microbial mat Fossil Geologic time scale Historical geology Biology		Scientists say that microbial mats built 3.4-billion-year-old stromatolites Add to Reading List Source URL: phys.org Download Document from Source Website File Size: 51,06 KB Share Document on Facebook

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