@misc{indiciae92a992d1cdcd,
  title = {Chart showing lithology, mineralogy, and paleontology of the Pennsylvanian Hermosa Group at Hermosa Mountain, La Plata County, Colorado},
  author = {K. J. Franczyk and Germaine Clark and D.C. Brew and Janet K. Pitman},
  year = {1995},
  doi = {10.3133/i2555},
  url = {https://pubs.usgs.gov/publication/i2555},
  note = {Source identifier: i2555}
}