@misc{indiciae0334fb83d1d3,
  title = {Evolution and taxonomy of the Paleogene calcareous nannofossil genus Hornibrookina},
  author = {Jean Self-Trail and David K. Watkins and James J. Pospichal and Ellen Seefelt},
  year = {2022},
  doi = {10.47894/mpal.68.1.04},
  url = {https://pubs.usgs.gov/publication/70227186},
  note = {Source identifier: 70227186}
}