@misc{indiciaeb2ee3cd9d3e0,
  title = {Shorter contributions to paleontology and stratigraphy, 1990},
  author = {William Jasper Sando},
  year = {1990},
  doi = {10.3133/b1881},
  url = {https://pubs.usgs.gov/publication/b1881},
  note = {Source identifier: b1881}
}