@misc{indiciae95388fb05e1b,
  title = {Volume VIII: Contributions to the fossil flora of the Western Territories, Part III: The Cretaceous and Tertiary flora},
  author = {Ferdinand Vandeveer Hayden and Leo Lesquereux},
  year = {1883},
  doi = {10.3133/70038958},
  url = {https://pubs.usgs.gov/publication/70038958},
  note = {Source identifier: 70038958}
}