chromalveolates see Supergroup Chromalveolata Adl et al., 2005
   Kingdom Chromista Caval.-Sm. (1981) - chromists
     Subkingdom Chromobiota Caval.-Sm. (1991)
       Infrakingdom Heterokonta Caval.-Sm. (1986) - heterokonts see Superphylum Heterokonta Caval.-Sm. (1986)
         Phylum Sagenista Caval.-Sm. (1995) see Subphylum Sagenista Cavalier-Smith, 1995
           1 Class Labyrinthulea L.S. Olive ex Caval.-Sm. (1986), orth. inval. see Class Labyrinthulea Olive ex Cavalier-Smith, 1986
           2 Class Bicoecea Caval.-Sm. (1986) see Class Bicosoecophyceae Loeblich III & Loeblich (1979), nom. nud.
           3 Class Placididea Moriya, Nakayama & Inouye, 2002