Archean molecular fossils and the early rise of eukaryotes.

@article{Brocks1999ArcheanMF,
  title={Archean molecular fossils and the early rise of eukaryotes.},
  author={Jochen J. Brocks and Graham A. Logan and Roger Buick and Roger Everett Summons},
  journal={Science},
  year={1999},
  volume={285 5430},
  pages={
          1033-6
        }
}
  • Jochen J. Brocks, Graham A. Logan, +1 author Roger Everett Summons
  • Published 1999
  • Medicine, Biology
  • Science
  • Molecular fossils of biological lipids are preserved in 2700-million-year-old shales from the Pilbara Craton, Australia. Sequential extraction of adjacent samples shows that these hydrocarbon biomarkers are indigenous and syngenetic to the Archean shales, greatly extending the known geological range of such molecules. The presence of abundant 2alpha-methylhopanes, which are characteristic of cyanobacteria, indicates that oxygenic photosynthesis evolved well before the atmosphere became… CONTINUE READING

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