@misc{indiciae8bf410f4c166,
  title = {Smithsonian contributions to paleobiology / Jurassic Rhynchonellids : internal structures and taxonomic revisions — Illustration, Page 6},
  year = {1993},
  url = {https://www.biodiversitylibrary.org/page/58084558},
  note = {Source identifier: page-58084558}
}