[organisms] see Clade Biota Wagner 2004 [Wiemann, de Queiroz, Rowe, Planavsky, Anderson, Gogarten, Turner & Gauthier 2020]
   Kingdom Plantae Haeckel (1866) - plants
     Division Tracheophyta see Phylum Tracheophyta Sinnott ex Caval.-Sm. (1998)
       Subdivision Filicophytina see Infraphylum Moniliformopses Kenrick & P.R.Crane (1997), nom. inval.
         Class Polypodinae see Class Polypodiopsida Cronquist, Takht. & Zimmerm. (1966)
           Order Cyatheales A.B.Frank (1877) - tree ferns
             1 Family Metaxyaceae Pic.Serm. (1970)
             2 Family Lophosoriaceae Pic.Serm. (1970) see Family Dicksoniaceae M.R.Schomb. (1848), nom. cons.
             3 Family Cyatheaceae Kaulf. (1827) - scaly tree ferns
             4 Family Thyrsiopteridaceae see Family Thyrsopteridaceae C.Presl
             5 Family Dennstaedtiaceae Lotsy (1909) - dennstaedtioids