@misc{indiciae26cc669d77a5,
  title = {Jurassic (Bathonian and Callovian) ammonites in eastern Oregon and western Idaho},
  author = {Ralph Willard Imlay},
  year = {1981},
  doi = {10.3133/pp1142},
  url = {https://pubs.usgs.gov/publication/pp1142},
  note = {Source identifier: pp1142}
}