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]
           [Superkingdom Eukaryota Whittaker & Margulis, 1978] see Domain Eukaryota Chatton, 1925
             [Kingdom "Chlorobiota" Jeffrey (1971), nom. inval.] see Kingdom Chlorobiota C.Jeffrey ex Doweld (2001)
               [Subkingdom Streptobionta] see [unranked] Streptophytina Lewis & McCourt (2004)
                 [Infrakingdom Embryobiotes]
                   [Superdivision Polysporangiomorpha]
                     [[plesion] Class †Horneophytopsida S.V.Meyen (1978) [monotypic]] see Class Langiophytopsida Doweld (2001)
                       1 [Order †Horneophytalesᵀ Novák (1961) [monotypic]] see Order Langiophytales Doweld (2001)