A Fossil Cellular Filament (<i>Primaevifilum amoenum</i>) (IMAGE)

Proceedings of the National Academy of Sciences

A Fossil Cellular Filament (<i>Primaevifilum amoenum</i>)

Caption

A fossil cellular filament (Primaevifilum amoenum) from the 3.5-billion-year-old chert, interpreted to be a methane consumer.

Credit

PNAS

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