@misc{indiciae9157acb09ca3,
  title = {Evolutionary, biostratigraphic, and taxonomic study of calcareous nannofossils from a continuous Paleocene-Eocene boundary section in New Jersey},
  author = {L. M. Bybell and Self-Trail J.M.},
  year = {1994},
  doi = {10.3133/pp1554},
  url = {https://pubs.usgs.gov/publication/pp1554},
  note = {Source identifier: pp1554}
}