@misc{indiciae5289658793ae,
  title = {The Cretaceous-Eocene contact in the Atlantic and Gulf Coastal Plain},
  author = {L. W. Stephenson},
  year = {1915},
  doi = {10.3133/pp90j},
  url = {https://pubs.usgs.gov/publication/pp90J},
  note = {Source identifier: pp90J}
}