@misc{indiciae1fe057ea0b8e,
  title = {Maastrichtian ammonites chiefly from the Prairie Bluff Chalk in Alabama and Mississippi},
  author = {W. A. Cobban and W. J. Kennedy},
  year = {2017},
  doi = {10.1017/s0022336000061096},
  url = {https://pubs.usgs.gov/publication/70018790},
  note = {Source identifier: 70018790}
}