@misc{indiciae7c3b4b64c925,
  title = {Biostratigraphy of the Phosphoria, Park City, and Shedhorn Formations, with a section on fish},
  author = {E. L. Yochelson and D. H. Van Sickle},
  year = {1968},
  doi = {10.3133/pp313d},
  url = {https://pubs.usgs.gov/publication/pp313D},
  note = {Source identifier: pp313D}
}