@misc{indiciae883696ccb5aa,
  title = {Some acanthoceratid ammonites from upper Cenomanian (Upper Cretaceous) rocks of Wyoming},
  author = {William A. Cobban},
  year = {1988},
  doi = {10.3133/pp1353},
  url = {https://pubs.usgs.gov/publication/pp1353},
  note = {Source identifier: pp1353}
}