@misc{indiciae68b3456d8f31,
  title = {Late Jurassic ammonites from the western Sierra Nevada, California},
  author = {Ralph Willard Imlay},
  year = {1961},
  doi = {10.3133/pp374d},
  url = {https://pubs.usgs.gov/publication/pp374D},
  note = {Source identifier: pp374D}
}