living organisms see Clade Biota Wagner 2004 [Wiemann, de Queiroz, Rowe, Planavsky, Anderson, Gogarten, Turner & Gauthier 2020]
   Superkingdom Eukaryotae see Domain Eukaryota Chatton, 1925
     Kingdom Plantae Haeckel (1866) - plants
       Subkingdom Embryobionta Cronquist, Takht. & W.Zimm.
         Division Filicophyta see Phylum Pterophyta
           Subdivision Marattiopsida Doweld (2001) see Class Marattiopsida Doweld (2001)
             Order Marattiales Link (1833)
               1 Family Marattiaceae Kaulf. (1824), nom. cons. - marattioids