Answers are grounded in this paper and cite their sources.
The origin of oxygenic photosynthesis must rank just after the origin of life itself as one of the most significant events in the history of life. The early photosynthesizers, which Bill Schopf has shown were similar to modern cyanobacteria (32), made earth a nicer place to live by quietly cranking
No takes yet. Share an insight, caveat, or question.
Geoffrey I. McFadden (2001) studied this question.
Synapse has enriched 10 related papers. Consider them for comparative context: