@misc{indiciaedf6fb2b5d223,
  title = {Cretaceous biostratigraphy in the Wyoming thrust belt.},
  author = {D. J. Nichols and S.R. Jacobson},
  year = {1982},
  url = {https://pubs.usgs.gov/publication/70011445},
  note = {Source identifier: 70011445}
}