To cite package 'Claddis' in a publication use:

Lloyd GT (2016). “Estimating morphological diversity and tempo with discrete character-taxon matrices: implementation, challenges, progress, and future directions.” Biological Journal of the Linnean Society, 118, 131-151. doi:10.1111/bij.12746.

Lloyd GT (2018). “Journeys through discrete-character morphospace: synthesizing phylogeny, tempo, and disparity.” Palaeontology, 61, 637-645. doi:10.1111/pala.12380.

Lehmann OER, Ezcurra MD, Butler RJ, Lloyd GT (2019). “Biases with the Generalized Euclidean Distance measure in disparity analyses with high levels of missing data.” Palaeontology, 62, 837-849. doi:10.1111/pala.12430.

As Claddis is evolving rapidly, you may want to also cite its version number (found with 'library(help = Claddis)').

Corresponding BibTeX entries:

  @Article{,
    title = {Estimating morphological diversity and tempo with discrete
      character-taxon matrices: implementation, challenges, progress,
      and future directions},
    author = {Graeme T. Lloyd},
    journal = {Biological Journal of the Linnean Society},
    year = {2016},
    volume = {118},
    pages = {131-151},
    doi = {10.1111/bij.12746},
  }

  @Article{,
    title = {Journeys through discrete-character morphospace:
      synthesizing phylogeny, tempo, and disparity},
    author = {Graeme T. Lloyd},
    journal = {Palaeontology},
    year = {2018},
    volume = {61},
    pages = {637-645},
    doi = {10.1111/pala.12380},
  }

  @Article{,
    title = {Biases with the Generalized Euclidean Distance measure in
      disparity analyses with high levels of missing data},
    author = {Oscar E. R. Lehmann and Martin D. Ezcurra and Richard J.
      Butler and Graeme T. Lloyd},
    journal = {Palaeontology},
    year = {2019},
    volume = {62},
    pages = {837-849},
    doi = {10.1111/pala.12430},
  }