Earth’s earliest non-marine eukaryotes

@article{Strother2011EarthsEN,
  title={Earth’s earliest non-marine eukaryotes},
  author={Paul K. Strother and Leila Battison and Martin D. Brasier and Charles H. Wellman},
  journal={Nature},
  year={2011},
  volume={473},
  pages={505-509}
}
The existence of a terrestrial Precambrian (more than 542 Myr ago) biota has been largely inferred from indirect chemical and geological evidence associated with palaeosols, the weathering of clay minerals and microbially induced sedimentary structures in siliciclastic sediments. Direct evidence of fossils within rocks of non-marine origin in the Precambrian is exceedingly rare. The most widely cited example comprises a single report of morphologically simple mineralized tubes and spheres… 
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