Natura - nature
   actualia - actual entities
     Mundus Plinius - physical world
       naturalia - natural bodies
         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]
                 [Diaphoretickes Adl et al., 2012] see Superkingdom Corticata Lankester, 1878
                   [Supergroup Sar Adl et al. 2012] see Subkingdom Harosa Cavalier-Smith, 2010
                     [Stramenopiles Patterson, 1990 - stramenopiles] see Superphylum Heterokonta Caval.-Sm. (1986)
                       [Phylum Heterokontophyta Moestrup (1992) - heterokonts] see Phylum Ochrophyta Caval.-Sm. (1995)
                         2.1.1 [Class Synchromophyceae Horn, Ehlers, Fritzsch, Gil-Rodríguez, Wilhelm & Schnetter (2007)] see Class Picophagophyceae Caval.-Sm. (2006)
                         2.1.2.1 [Class Synurophyceae Andersen (1987) [monotypic]] see Class Chrysophyceae Fritsch (1927)
                         2.1.2.2.0 [Class Chrysophyceae Hibberd (1976)] see Class Chrysophyceae Fritsch (1927)
                         2.2.1.2.2.1.1 [Class Tribophyceae Hibberd (1982)] see Class Xanthophyceae P. Allorge ex Fritsch (1935)
                         2.2.1.2.2.1.2.2 [Class Aurearenophyceae Kai, Yoshii, Nakayama & Inouye (2008) [monotypic]] see Class Phaeothamniophyceae R.A. Andersen & J.C. Bailey (1998)
                         2.2.2.2.2.1 [Class Pelagophyceae R.A. Andersen & G.W.Saunders (1993)] see Class Dictyochophyceae Silva (1980)
                         2.2.2.2.2.2.1 [Subphylum Diatomeae Caval.-Sm. (1995) - diatoms] see [unranked] Diatomea Kütz. (1844)
                         x [Class Haptophyceae Christensen ex Silva (1980)] see Class Prymnesiophyceae D.J. Hibberd (1976)