Fossil Microorganisms: Possible Presence in Precambrian Shield of Western Australia

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Science  17 Apr 1964:
Vol. 144, Issue 3616, pp. 290-292
DOI: 10.1126/science.144.3616.290


A quartzite believed to be at least 2700 million years old contains pockets of minute red or yellow objects presumably composed of hematite and goethite, respectively. The size and morphology of the objects suggests that most of them may be the remains of microorganisms of at least two species.