Fossil Actinomycetes in Middle Precambrian Glacial Varves

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Science  24 Feb 1967:
Vol. 155, Issue 3765, pp. 1003-1005
DOI: 10.1126/science.155.3765.1003


Fossil actinomycetes and other bacteria have been found in sulfide minerals from "varved" argillites in the middle Precambrian Cobalt Series of Canada. The fossils consist of branched and unbranched nonseptate hyphae and chains of rod-shaped cells. The presence of actinomycetes is consistent with the theory that the argillites are lacustrine desposits.