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2. Biomarker evidence for green and purple sulphur bacteria in a stratified Palaeoproterozoic sea. Brocks JJ, Love GD, Summons RE, Knoll AH, Logan GA, Bowden SA. Nature; 2005 Oct 06; 437(7060):866-70. PubMed ID: 16208367 [Abstract] [Full Text] [Related]
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