Microfossils of the Early Archean Apex Chert: New Evidence of the Antiquity of Life

Details Microfossils of the Early Archean Apex Chert: New Evidence of the Antiquity of Life Microfossils of the Early Archean Apex Chert: New Evidence of the Antiquity of Life

Apr 1993

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1993sci...260..640s&link_type=abstract

Science, Volume 260, Issue 5108, pp. 640-646

Mathematics

Logic

149

Scientific paper

Eleven taxa (including eight heretofore undescribed species) of cellularly preserved filamentous microbes, among the oldest fossils known, have been discovered in a bedded chert unit of the Early Archean Apex Basalt of northwestern Western Australia. This prokaryotic assemblage establishes that trichomic cyanobacterium-like microorganisms were extant and morphologically diverse at least as early as ~3465 million years ago and suggests that oxygen-producing photoautotrophy may have already evolved by this early stage in biotic history.

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