@misc{indiciaef98ebfdcf3aa,
  title = {Notes on fossils from the Eocene of the Gulf Province; I, The annelid genus Tubulostium; II, The gastropod families Cassididae, Ficidae, and Buccinidae},
  author = {Julia Gardner},
  year = {1939},
  doi = {10.3133/pp193b},
  url = {https://pubs.usgs.gov/publication/pp193B},
  note = {Source identifier: pp193B}
}