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Brazilian microfossils interpreted as animal traces are actually algae and bacteria, research reveals
- May 11, 2026 at 11:20 PM
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A reexamination of microfossils found in the Brazilian state of Mato Grosso do Sul shows that the marks previously interpreted as traces of worms or other small oceanic animals are actually communities of fossilized microscopic bacteria and algae.
Originally published at Phys.org