@misc{indiciae8aeb82196fd2,
  title = {Palynological investigations in the Upper Cretaceous and Tertiary of the Mississippi Embayment Region - VI},
  author = {Robert H. Tschudy},
  year = {1970},
  doi = {10.3133/ofr70330},
  url = {https://pubs.usgs.gov/publication/ofr70330},
  note = {Source identifier: ofr70330}
}