Biota see Clade Biota Wagner 2004 [Wiemann, de Queiroz, Rowe, Planavsky, Anderson, Gogarten, Turner & Gauthier 2020]
   Domain Eukarya Chatton, 1925 see Domain Eukaryota Chatton, 1925
     "Bikonta"
       Supergroup Chromalveolata Adl et al., 2005 - chromalveolates see Kingdom Chromista Caval.-Sm. (1981)
         Stramenopila see [unranked] Stramenopiles Patterson, 1990
           Phylum Heterokontophyta Moestrup (1992) - heterokonts see Phylum Ochrophyta Caval.-Sm. (1995)
             Class Chrysophyceae Fritsch (1927)