organisms see Clade Biota Wagner 2004 [Wiemann, de Queiroz, Rowe, Planavsky, Anderson, Gogarten, Turner & Gauthier 2020]
   Kingdom Plantae Haeckel (1866) - plants
     Phylum Cormophyta see Subkingdom Cormophyta
       Division Pteridophyta Schimp. (1879) see Subphylum Pteridophytina (Eichler) Cavalier-Sm. (1998)
         1 Class Calamophyta
         2 Class Filices see Class Filicopsida C.Agardh (1822)
         3 Class Rhizocarpeae
         4 Class Lepidophyta