@misc{indiciae11ef3831df58,
  title = {New Upper Cretaceous Amphineura (Mollusca)},
  author = {A.G. Smith and N. F. Sohl and E. L. Yochelson},
  year = {1968},
  doi = {10.3133/pp593g},
  url = {https://pubs.usgs.gov/publication/pp593G},
  note = {Source identifier: pp593G}
}