Morphological and ecological complexity in early eukaryotic ecosystems

@article{Javaux2001MorphologicalAE,
  title={Morphological and ecological complexity in early eukaryotic ecosystems},
  author={E. Javaux and A. Knoll and M. Walter},
  journal={Nature},
  year={2001},
  volume={412},
  pages={66-69}
}
Molecular phylogeny and biogeochemistry indicate that eukaryotes differentiated early in Earth history. Sequence comparisons of small-subunit ribosomal RNA genes suggest a deep evolutionary divergence of Eukarya and Archaea; C27–C29 steranes (derived from sterols synthesized by eukaryotes) and strong depletion of 13C (a biogeochemical signature of methanogenic Archaea) in 2,700 Myr old kerogens independently place a minimum age on this split. Steranes, large spheroidal microfossils, and rare… Expand
332 Citations

Figures and Topics from this paper

Paleobiological perspectives on early eukaryotic evolution.
  • A. Knoll
  • Biology, Medicine
  • Cold Spring Harbor perspectives in biology
  • 2014
  • 238
  • PDF
Eukaryotic organisms in Proterozoic oceans
  • 496
  • PDF
TEM evidence for eukaryotic diversity in mid‐Proterozoic oceans
  • 187
  • PDF
Micropaleontology of the lower Mesoproterozoic Roper Group, Australia, and implications for early eukaryotic evolution
  • 57
  • PDF
Recognizing and Interpreting the Fossils of Early Eukaryotes
  • 132
The early eukaryotic fossil record.
  • E. Javaux
  • Biology, Medicine
  • Advances in experimental medicine and biology
  • 2007
  • 40
Estimating the timing of early eukaryotic diversification with multigene molecular clocks
  • 598
  • PDF
Eukaryotic origins and the Proterozoic Earth system: A link between global scale glaciations and eukaryogenesis?
  • 2
  • Highly Influenced
  • PDF
...
1
2
3
4
5
...

References

SHOWING 1-10 OF 28 REFERENCES
Archean molecular fossils and the early rise of eukaryotes.
  • 1,093
  • PDF
Towards a natural system of organisms: proposal for the domains Archaea, Bacteria, and Eucarya.
  • 5,462
  • PDF
Early life on earth
  • 418
A new model for Proterozoic ocean chemistry
  • 942
...
1
2
3
...