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 Bacillariobiota Doweld (2001)]
                 [Subkingdom Bacillariobiotinaᵀ Doweld (2001)]
                   2 [Phylum Vaucheriophyta Maekawa (1953)]
                   3 [Phylum Fucophyta Pax (1904)] see Phylum Phaeophyta Kjellman (1891)
                   4 [Phylum Eustigmatophyta Hibberd & Leedale (1970)] see Phylum Ochrophyta Caval.-Sm. (1995)
                   5 [Phylum Synurophyta Doweld (2001)]
                   6 [Phylum Chrysomonadophyta Pascher (1931)]
                   7 [Phylum Raphidomonadophyta Doweld (2001)]
                   8 [Phylum Dictyochophyta Corliss ex Doweld (2001)]
                   9 [Phylum Pedinellophyta Moehn ex Doweld (2001)]