life see Clade Biota Wagner 2004 [Wiemann, de Queiroz, Rowe, Planavsky, Anderson, Gogarten, Turner & Gauthier 2020]
   Empire Eukaryota (Chatton, 1925) see Domain Eukaryota Chatton, 1925
     Superkingdom Metakaryota see Domain Eukaryota Chatton, 1925
       Kingdom Chromista Caval.-Sm. (1981) - chromists
         Subkingdom Euchromista Cavalier-Sm. (1993) see [unranked] Stramenopila
           Infrakingdom Chromobiota Caval.-Sm. (1986)
             Phylum Heterokonta Caval.-Sm. (1986) see Superphylum Heterokonta Caval.-Sm. (1986)
               Subphylum Ochrista Caval.-Sm. (1986), orth. inval. see Phylum Ochrista Caval.-Sm. (1995)
                 Infraphylum Chrysista Caval.-Sm. (1993)
                   Class Chrysophycea Hibberd (1976) see Class Chrysophyceae Fritsch (1927)
                     1 Subclass Chrysomonadidae Saville Kent (1881)
                     2 Subclass Synuridae Caval.-Sm. (1993), stat. inval. see Subclass Synuridae Caval.-Sm. (1989)
                     3 Subclass Sarcinochrysidae Cavalier-Sm. (1993) [monotypic]
                     4 Subclass Chrysomeridae Cavalier-Sm. (1993) [monotypic]