@misc{indiciae2d723ffdca6a,
  title = {Descriptive notes of new genera and species from the Lower Cambrian or Olenellus zone of North America — Illustration, BHL page 26591804},
  year = {1889},
  url = {https://www.biodiversitylibrary.org/page/26591804},
  note = {Source identifier: page-26591804}
}