Alan R. Smith, Kathleen M. Pryer, Eric Schuettpelz, Petra Korall, Harald Schneider & Paul G. Wolf (2006). A classification for extant ferns. Taxon 55 (3): 705–731.
Samuli Lehtonen (2011). Towards Resolving the Complete Fern Tree of Life. PLoS ONE 6 (10): e24851.
Schuettpelz, E., and Pryer, K.M. (2007). Fern Phylogeny Inferred from 400 Leptosporangiate Species and Three Plastid Genes. Taxon 56, 1037-1050.
