Natura - nature
   actualia - actual entities
     Mundus Plinius - physical world
       naturalia - natural bodies
         [crown] Clade Biota Wagner 2004 [Wiemann, de Queiroz, Rowe, Planavsky, Anderson, Gogarten, Turner & Gauthier 2020]
           Clade neomura Cavalier-Smith, 1987
             Domain Eukaryota Chatton, 1925 - eukaryotes
               ["Protista" Haeckel, 1866, incertae sedis] see Kingdom protists
                 ["stramenopiles" Patterson, 1990, nom. vernac.] see [unranked] Stramenopiles Patterson, 1990
                   ["stramenochromes" Patterson, 1994]
                     ["diatoms"] see Class Bacillariophyceae Haeckel (1878)
                       [Genus "Pyrocystis" Murray (1876)] see Genus Pyrocystis J. Murray ex Haeckel (1890)
                         ["Pyrocystis fusiformis" Thomson (1876)] see Murracystis fusiformis Haeckel (1890)