Natura - nature
   actualia - actual entities
     Mundus Plinius - physical world
       naturalia - natural bodies
         [[crown] organisms] see Clade Biota Wagner 2004 [Wiemann, de Queiroz, Rowe, Planavsky, Anderson, Gogarten, Turner & Gauthier 2020]
           [Domain Eucaryota]
             [Subdomain Chlorota Doweld (2001)]
               [Kingdom Chlorobiota C.Jeffrey ex Doweld (2001) - plants] see Subkingdom Viridiplantae Caval.-Sm. (1981)
                 [Subkingdom Pteridobiotina Britton & A. Br. (1896)]
                   [Superdivision Cycadophytanae Doweld (2001)] see Superphylum Cycadophytanae Doweld (2001)
                     [Division †Progymnospermophyta Bold et al.] see Phylum Progymnospermophyta Lang (1925)
                       1 [Class †Progymnospermopsida Beck (1960) [paraphyletic]] see Clade Pan-Spermatophyta Cantino & Donoghue 2007 [Cantino, Doyle & Donoghue 2020]