@misc{indiciae790b47415527,
  title = {Petrography, x-ray mineralogy, and palynology of a measured section of the Upper Cretaceous Mesaverde Group in Hunter Canyon, western Colorado},
  author = {Ronald C. Johnson and Fred May and P. L. Hansley and Janet K. Pitman and T. D. Fouch},
  year = {1980},
  doi = {10.3133/oc91},
  url = {https://pubs.usgs.gov/publication/oc91},
  note = {Source identifier: oc91}
}