@misc{indiciae6764dd1cd3b5,
  title = {Confirmation of a late Oligocene-early Miocene age of the Deseadan Salla Beds of Bolivia.},
  author = {C. W. Naeser and E.H. McKee and N.M. Johnson and B.J. Macfadden},
  year = {1987},
  url = {https://pubs.usgs.gov/publication/70014103},
  note = {Source identifier: 70014103}
}