@misc{indiciae596bf43819ed,
  title = {Species of Aquilapollenites and Fibulapollis from two Upper Cretaceous localities in Alaska},
  author = {B.D. Tschudy},
  year = {1969},
  doi = {10.3133/pp643a},
  url = {https://pubs.usgs.gov/publication/pp643A},
  note = {Source identifier: pp643A}
}