@misc{indiciae62e71f6e5c25,
  title = {Volume II: The vertebrata of the Cretaceous formations of the West},
  author = {Ferdinand Vandeveer Hayden and Edward D. Cope},
  year = {1875},
  doi = {10.3133/70038952},
  url = {https://pubs.usgs.gov/publication/70038952},
  note = {Source identifier: 70038952}
}