Age estimates for the emergence of oxygenic photosynthesis derived from molecular clock analyses reach back to the Archean, substantially predating geochemical evidence of persistent, irreversible atmospheric oxygenation following the Great […]
Age estimates for the emergence of oxygenic photosynthesis derived from molecular clock analyses reach back to the Archean, substantially predating geochemical evidence of persistent, irreversible atmospheric oxygenation following the Great […]