@misc{indiciaee79b267df9eb,
  title = {Fieldiana. Geology / North American cyclocrinitid algae — Illustration, Page 24, Fig. 18, Fig. 19},
  year = {1970},
  url = {https://www.biodiversitylibrary.org/page/4259566},
  note = {Source identifier: page-4259566}
}