If correctly dated to 1.75 billion years ago, the new find provides additional insight into early Earth ecosystems. Scientists believe the study of additional fossils could yield more clues about the origins of life. Researchers on a quest to understand the origins of life just learned a little lesson about photosynthesis from 1.75 billion years ago.
“ allows the unambiguous identification of early oxygenic photosynthesizers and a new redox proxy for probing early Earth ecosystems,” the authors wrote in the paper, “highlighting the importance of examining the ultrastructure of fossil cells to decipher their paleobiology and early evolution.
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