@misc{indiciaefd76ad6080ad,
  title = {Trilobites of the Upper Cambrian Dunderberg shale, Eureka district, Nevada},
  author = {A. R. Palmer},
  year = {1960},
  doi = {10.3133/pp334c},
  url = {https://pubs.usgs.gov/publication/pp334C},
  note = {Source identifier: pp334C}
}