@misc{indiciae1bf1aee4a917,
  title = {Volume VII: Contributions to the fossil flora of the Western Territories, Part II: The Tertiary flora},
  author = {Ferdinand Vandeveer Hayden and Leo Lesquereux},
  year = {1878},
  doi = {10.3133/70038957},
  url = {https://pubs.usgs.gov/publication/70038957},
  note = {Source identifier: 70038957}
}