@misc{indiciae82fb6bb8d267,
  title = {Upper Cretaceous gastropods from the Pierre Shale at Red Bird, Wyoming},
  author = {N. F. Sohl},
  year = {1967},
  doi = {10.3133/pp393b},
  url = {https://pubs.usgs.gov/publication/pp393B},
  note = {Source identifier: pp393B}
}