To cite package ‘paleobioDB’ in publications use:

  Varela S, González-Hernández J, Sgarbi LF, Marshall C, Uhen MD,
  Peters S, McClennen M (2015). “paleobioDB: an R package for
  downloading, visualizing and processing data from the Paleobiology
  Database.” _Ecography_, *38*(4), 419-425. doi:10.1111/ecog.01154
  <https://doi.org/10.1111/ecog.01154>.

A BibTeX entry for LaTeX users is

  @Article{,
    title = {paleobioDB: an R package for downloading, visualizing and processing data from the Paleobiology Database.},
    author = {Sara Varela and Javier González-Hernández and Luciano F. Sgarbi and Charles Marshall and Mark D. Uhen and Shanan Peters and Michael McClennen},
    journal = {Ecography},
    year = {2015},
    volume = {38},
    number = {4},
    pages = {419-425},
    doi = {10.1111/ecog.01154},
  }