@misc{indiciaef589825a4d48,
  title = {The Titanotheres of ancient Wyoming, Dakota, and Nebraska},
  author = {Henry Fairfield Osborn},
  year = {1929},
  doi = {10.3133/m55},
  url = {https://pubs.usgs.gov/publication/m55},
  note = {Source identifier: m55}
}