@misc{indiciae6d45e0279e62,
  title = {Silicoflagellate zonation of upper Cretaceous to lower Miocene deep-sea sediment},
  author = {David Bukry and J. H. Foster},
  year = {1974},
  url = {https://pubs.usgs.gov/publication/70232442},
  note = {Source identifier: 70232442}
}