@misc{indiciaea376d9d3720b,
  title = {The biostratigraphy and paleoecology of the Gerster limestone (Upper Permian) in Nevada and Utah},
  author = {Bruce R. Wardlaw},
  year = {1977},
  doi = {10.3133/ofr77470},
  url = {https://pubs.usgs.gov/publication/ofr77470},
  note = {Source identifier: ofr77470}
}