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
               [Bikonta]
                 [Supergroup Chromalveolata Adl et al., 2005 [polyphyletic?] - chromalveolates] see Kingdom Chromista Caval.-Sm. (1981)
                   [Stramenopila] see [unranked] Stramenopiles Patterson, 1990
                     [Phylum Chrysophyta Pascher (1914)] see Class Chrysophyceae Fritsch (1927)
                       [Class Silicoflagellatae]
                         1 [Order Siphonotestales]
                         2 [Order Stereotestales]