@misc{indiciae9efc3c9511a1,
  title = {A comparison of the genera Metaplacenticeras Spath and Placenticeras Meek},
  author = {John B. Reeside},
  year = {1927},
  doi = {10.3133/pp147a},
  url = {https://pubs.usgs.gov/publication/pp147A},
  note = {Source identifier: pp147A}
}