Author(s): Canfield DE, Teske A
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Abstract The evolution of non-photosynthetic sulphide-oxidizing bacteria was contemporaneous with a large shift in the isotopic composition of biogenic sedimentary sulphides between 0.64 and 1.05 billion years ago. Both events were probably driven by a rise in atmospheric oxygen concentrations to greater than 5-18\% of present levels--a change that may also have triggered the evolution of animals.
This article was published in Nature
and referenced in Journal of Ecosystem & Ecography