@misc{indiciae9a90fb36ddf6,
  title = {The Permian–Triassic transition in Colorado},
  author = {James S. Hagadorn and Karen R. Whitely and Bonita L. Lahey and Charles M. Henderson and Christopher S. Holm-Denoma},
  year = {2016},
  doi = {10.1130/2016.0044(03)},
  url = {https://pubs.usgs.gov/publication/70179075},
  note = {Source identifier: 70179075}
}