To cite package ‘megatrees’ in publications use:

  Li D (2026). _megatrees: Subsets of Randomly Selected Phylogenies
  from Existing Mega-Phylogenies_. R package version 1.0.0,
  <https://CRAN.R-project.org/package=megatrees>.

A BibTeX entry for LaTeX users is

  @Manual{,
    title = {megatrees: Subsets of Randomly Selected Phylogenies from Existing
Mega-Phylogenies},
    author = {Daijiang Li},
    year = {2026},
    note = {R package version 1.0.0},
    url = {https://CRAN.R-project.org/package=megatrees},
  }