@misc{indiciae38e5bd40c50f,
  title = {Recent developments in paleontologic studies, 1951},
  author = {H. R. Bergquist},
  year = {1954},
  doi = {10.3133/ofr5421},
  url = {https://pubs.usgs.gov/publication/ofr5421},
  note = {Source identifier: ofr5421}
}