@misc{indiciae789c796eaa6e,
  title = {Earliest Phanerozoic or latest Proterozoic fossils from the Arabian Shield},
  author = {P. Cloud and S.M. Awramik and K. Morrison and D.G. Hadley},
  year = {1979},
  doi = {10.1016/0301-9268(79)90020-2},
  url = {https://pubs.usgs.gov/publication/70010343},
  note = {Source identifier: 70010343}
}