@misc{indiciae90c88ba9d6a3,
  title = {Awell-preserved conodont fauna from the Pennsylvanian Excello Shale of Iowa, U. S. A.},
  author = {Merlynd K. Nestell and Bruce R. Wardlaw and John P. Pope},
  year = {2016},
  url = {https://pubs.usgs.gov/publication/70188432},
  note = {Source identifier: 70188432}
}