@misc{indiciae546746967b6b,
  title = {Smithsonian contributions to paleobiology / Jurassic Rhynchonellids : internal structures and taxonomic revisions — Illustration, Page 52},
  year = {1993},
  url = {https://www.biodiversitylibrary.org/page/58084604},
  note = {Source identifier: page-58084604}
}