@misc{indiciae05163c132be8,
  title = {Duration of sedimentation of the Creede Formation},
  author = {Marvin A. Lanphere},
  year = {2001},
  doi = {10.3133/ofr94260c},
  url = {https://pubs.usgs.gov/publication/ofr94260C},
  note = {Source identifier: ofr94260C}
}