@misc{indiciae9b6f906bbca2,
  title = {Paleocene-Eocene boundary in the eastern Gulf Coast},
  author = {N. O. Frederiksen and T. G. Gibson and Laurel M. Bybell},
  year = {1982},
  url = {https://pubs.usgs.gov/publication/70221738},
  note = {Source identifier: 70221738}
}