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23 July, 17:41

How old are the earliest bacteria fossil?

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  1. 23 July, 17:45
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    However, one particular group of bacteria, the cyanobacteria or "blue-green algae," have left a fossil record that extends far back into the Precambrian - the oldest cyanobacteria-like fossils known are nearly 3.5 billion years old, among the oldest fossils currently known.
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