@misc{indiciae1b9c07d4bb41,
  title = {Upper Jurassic stratigraphy of some adjacent parts of Texas, Louisiana, and Arkansas},
  author = {K. A. Dickinson},
  year = {1968},
  doi = {10.3133/pp594e},
  url = {https://pubs.usgs.gov/publication/pp594E},
  note = {Source identifier: pp594E}
}