Photosynthesis originated a billion years sooner than we thought, examine exhibits

The earliest oxygen-producing microbes could not have been cyanobacteria. Historic microbes could have been producing oxygen by photosynthesis a billion years sooner than we thought, which suggests oxygen was accessible for residing organisms very near the origin of life on earth. Researchers studied the molecular machines accountable for photosynthesis and located the method could have developed so long as three.6 billion years in the past.
Geology News — ScienceDaily