@misc{indiciae75000cbeaf55,
  title = {Fieldiana. Geology / North American cyclocrinitid algae — Illustration, Page 103, Figs. 43, 44},
  year = {1970},
  url = {https://www.biodiversitylibrary.org/page/4259480},
  note = {Source identifier: page-4259480}
}