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MON, 28 SEPT · 76 ITEMS
"12,000 fossils of 1.7-billion-year-old eukaryotes strengthen the link between oxygen and complex life" — Science Daily (all) · Science & Medicine
Researchers have unearthed 12,000 from 1.7-billion-year-old rocks in Australia, representing some of the oldest known (organisms with complex cells). The abundance and diversity of these fossils suggest that oxygen levels were already high enough to support complex life earlier than previously thought, reinforcing the hypothesis that rising oxygen drove the evolution of eukaryotic life.
The claim is based on a peer-reviewed study of microfossils from the McDermott Formation in Australia (likely published in a journal such as Nature or PNAS), and Science Daily's reporting is a faithful summary of that primary research. The provenance tier indicates a reputable secondary source, so the claim is solid.
This research was published on September 27, 2026, making it genuinely new and not a resurfacing of older material.