@misc{indiciaee9c9e8b9f25c,
  title = {Charts showing distribution and abundance of fossils in the Phosphoria, Park City, and Shedhorn Formations in Wyoming, Idaho, Utah, and Montana},
  author = {Ellis Leon Yochelson},
  year = {1968},
  doi = {10.3133/ofr68336},
  url = {https://pubs.usgs.gov/publication/ofr68336},
  note = {Source identifier: ofr68336}
}