@misc{indiciae3eddea5bedcb,
  title = {Growth series of ostracodes from the Permian of Texas},
  author = {I. G. Sohn},
  year = {1950},
  doi = {10.3133/pp221c},
  url = {https://pubs.usgs.gov/publication/pp221C},
  note = {Source identifier: pp221C}
}