@misc{indiciae475d818d78b5,
  title = {New and little-known ammonites from the Upper Cretaceous (Cenomanian and Turonian) of the western interior of the United States},
  author = {William Aubrey Cobban},
  year = {1971},
  doi = {10.3133/pp699},
  url = {https://pubs.usgs.gov/publication/pp699},
  note = {Source identifier: pp699}
}