@misc{indiciae75effb978b3c,
  title = {Exogyra olisiponens Sharpe and Exogyra costata Say in the Cretaceous of the Western Interior},
  author = {J.B. Reeside},
  year = {1929},
  doi = {10.3133/pp154i},
  url = {https://pubs.usgs.gov/publication/pp154I},
  note = {Source identifier: pp154I}
}