@misc{indiciae709817c57b56,
  title = {Geologic framework of nonmarine cretaceous-tertiary boundary sites, Raton Basin, New Mexico and Colorado},
  author = {C. L. Pillmore and R.H. Tschudy and C. J. Orth and J. S. Gilmore and J.D. Knight},
  year = {1984},
  doi = {10.1126/science.223.4641.1180},
  url = {https://pubs.usgs.gov/publication/70013585},
  note = {Source identifier: 70013585}
}