@misc{indiciaeb49c2ff6f08a,
  title = {Upper Triassic marine invertebrate faunas of North America},
  author = {J.P. Smith},
  year = {1927},
  doi = {10.3133/pp141},
  url = {https://pubs.usgs.gov/publication/pp141},
  note = {Source identifier: pp141}
}