@misc{indiciae7289e5aa2f5f,
  title = {Stratigraphy and paleontology of Lower Permian rocks north of Cananea, northern Sonora, Mexico},
  author = {R. B. Blodgett and Thomas E. Moore and F. Gray},
  year = {2002},
  doi = {10.1016/s0895-9811(02)00064-0},
  url = {https://pubs.usgs.gov/publication/70024207},
  note = {Source identifier: 70024207}
}