@misc{indiciaeeae322566320,
  title = {Otter Creek coral bed and its fauna, east-central Kentucky},
  author = {George Clarke Simmons and William Albert Oliver},
  year = {1967},
  doi = {10.3133/b1244f},
  url = {https://pubs.usgs.gov/publication/b1244F},
  note = {Source identifier: b1244F}
}