@misc{indiciae11acaf5bf386,
  title = {Paleozoic species of Bairdia and related genera},
  author = {I. G. Sohn},
  year = {1960},
  doi = {10.3133/pp330a},
  url = {https://pubs.usgs.gov/publication/pp330A},
  note = {Source identifier: pp330A}
}