@misc{indiciae9aef70694d47,
  title = {Jurassic (Bathonian or early Callovian) ammonites from Alaska and Montana},
  author = {Ralph Willard Imlay},
  year = {1962},
  doi = {10.3133/pp374c},
  url = {https://pubs.usgs.gov/publication/pp374C},
  note = {Source identifier: pp374C}
}