eukaryotes see Domain Eukaryota Chatton, 1925
   Kingdom Chromista Caval.-Sm. (1981) - chromists
     Subkingdom Heterokonta Caval.-Sm. (1986)
       Phylum Ochrista Caval.-Sm. (1995) see Phylum Ochrophyta Caval.-Sm. (1995)
         Class Chrysomonadea Caval.-Sm. (1990)
           Order Oikomonadales Caval.-Sm. (1995), nom. nud.