To cite phytools in a publication please use:

Revell L (2012). “phytools: An R package for phylogenetic comparative biology (and other things).” Methods in Ecology and Evolution, 3, 217-223. doi:10.1111/j.2041-210X.2011.00169.x.

As phytools is continually evolving you may also want to cite its version number (found with 'library(help = phytools)' or 'packageVersion("phytools")').

Corresponding BibTeX entry:

  @Article{,
    title = {phytools: An {R} package for phylogenetic comparative
      biology (and other things).},
    author = {Liam J. Revell},
    journal = {Methods in Ecology and Evolution},
    year = {2012},
    volume = {3},
    pages = {217-223},
    doi = {10.1111/j.2041-210X.2011.00169.x},
  }