@misc{indiciae1287488311ab,
  title = {Preliminary Tertiary molluscan biostratigraphy of the Alaskan Peninsula, southwestern Alaska},
  author = {Louie Marincovich and Charles L. Powell},
  year = {1989},
  doi = {10.3133/ofr89674},
  url = {https://pubs.usgs.gov/publication/ofr89674},
  note = {Source identifier: ofr89674}
}