@misc{indiciae8b90299b438a,
  title = {Ontogeny, intraspecific variation, and systematics of the Late Cambrian trilobite Dikelocephalus / Smithsonian contributions to paleobiology — Illustration, Page 50},
  year = {1994},
  url = {https://www.biodiversitylibrary.org/page/58079310},
  note = {Source identifier: page-58079310}
}