@misc{indiciaeceb45997b9c7,
  title = {Late Mississippian gastropods of the Chainman Shale, west-central Utah},
  author = {Mackenzie Gordon and Ellis L. Yochelson},
  year = {1987},
  doi = {10.3133/pp1368},
  url = {https://pubs.usgs.gov/publication/pp1368},
  note = {Source identifier: pp1368}
}