News of the WeekPaleontology

New Biomarker Proposed for Earliest Life on Earth

Science  23 Apr 2004:
Vol. 304, Issue 5670, pp. 503
DOI: 10.1126/science.304.5670.503

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On page 578, geoscientists report the discovery of microscopic tubules in 3.5-billion-year-old sea-floor rock that strongly resemble microtubules apparently bored in modern sea-floor rock by microorganisms.