@misc{indiciaedc4dc0d910fb,
  title = {Biomarkers in the Precambrian: Earth’s ancient sedimentary record of life},
  author = {Christian Hallmann and Katherine L. French and Jochen J. Brocks},
  year = {2022},
  doi = {10.2138/gselements.18.2.93},
  url = {https://pubs.usgs.gov/publication/70238573},
  note = {Source identifier: 70238573}
}