@misc{indiciae167671fad979,
  title = {Middle Jurassic (Bajocian and Bathonian) ammonites from northern Alaska},
  author = {Ralph Willard Imlay},
  year = {1976},
  doi = {10.3133/pp854},
  url = {https://pubs.usgs.gov/publication/pp854},
  note = {Source identifier: pp854}
}