@misc{indiciae51462abe0d1e,
  title = {Heteromorph ammonites from the Upper Campanian (Upper Cretaceous) Baculites cuneatus and Baculites reesidei zones of the Pierre Shale in Colorado, USA},
  author = {W. J. Kennedy and William A. Cobban and Glenn R. Scott},
  year = {2000},
  url = {https://pubs.usgs.gov/publication/70022241},
  note = {Source identifier: 70022241}
}