organisms see Clade Biota Wagner 2004 [Wiemann, de Queiroz, Rowe, Planavsky, Anderson, Gogarten, Turner & Gauthier 2020]
Status: extant
   Domain Eukaryota Chatton, 1925 - eukaryotes
  Status: extant
     Kingdom Plantae Haeckel (1866) - plants
    Status: extant
       Subkingdom Viridaeplantae Cavalier-Sm. (1981) - green plants see [unranked] Viridiplantae Cavalier-Smith, 1981
      Status: extant
         Land plants
        Status: extant
           Phylum Pteridophyta Schimp. (1879) see Phylum Filicinophyta
          Status: extant
             leptosporangiates - leptosporangiate ferns
            Status: extant
               Order Salviniales Link (1833) - water ferns
              Period: Cretaceous - Present (145 Ma - present); Status: extant
                 1 Family Marsileaceae Mirb. (1802) - clover ferns
                Status: extant
                 2 Family Salviniaceae Martinov (1820) - floating ferns
                Status: extant