1.1-billion-year-old porphyrins establish a marine ecosystem dominated by bacterial primary producers
The average cell size of marine phytoplankton is critical for the flow of energy and nutrients from the base of the food web to higher trophic levels. Thus, the evolutionary succession of primary producers through Earth’s history is important for our understanding of the radiation of modern protists ∼800 million years ago and the emergence of eumetazoan animals ∼200 million years later. Currently, it is difficult to establish connections between primary production and the proliferation of large...[Show more]
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|Source:||PNAS - Proceedings of the National Academy of Sciences of the United States of America|
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