@misc{indiciaea829a57afd8c,
  title = {Unmineralized fossil bacteria},
  author = {W. H. Bradley},
  year = {1963},
  doi = {10.1126/science.141.3584.919},
  url = {https://pubs.usgs.gov/publication/70010840},
  note = {Source identifier: 70010840}
}