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Nature 416, 76-81 (7 March 2002) | doi:10.1038/416076a;
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Chief Scientific Manager - Medicinal Chemistry
- Syngene International
- Bangalore, Karnataka 560099 India
Endowed Professorship
- Washington University School of Medicine in St. Louis
- St. Louis, MO 63110 United States
Questioning the evidence for Earth's oldest fossils
Structures resembling remarkably preserved bacterial and cyanobacterial microfossils from |[sim]|3,465-million-year-old Apex cherts of the Warrawoona Group in Western Australia currently provide the oldest morphological evidence for life on Earth and have been taken to support an early beginning for oxygen-producing photosynthesis. Eleven species of filamentous prokaryote, distinguished by shape and geometry, have been put forward as meeting the criteria required of authentic Archaean microfossils, and contrast with other microfossils dismissed as either unreliable or unreproducible.
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