@misc{indiciae410565321d38,
  title = {Volume VI: Contributions to the fossil flora of the Western Territories, Part I: The Cretaceous flora},
  author = {Ferdinand Vandeveer Hayden and Leo Lesquereux},
  year = {1874},
  doi = {10.3133/70038956},
  url = {https://pubs.usgs.gov/publication/70038956},
  note = {Source identifier: 70038956}
}