@misc{indiciae56c0fb64f8f3,
  title = {Early and middle Bajocian (Middle Jurassic) ammonites from southern Alaska},
  author = {R. W. Imlay},
  year = {1984},
  doi = {10.3133/pp1322},
  url = {https://pubs.usgs.gov/publication/pp1322},
  note = {Source identifier: pp1322}
}