eukaryotes see Domain Eukaryota Chatton, 1925 Superkingdom Corticata Lankester, 1878 - corticates Kingdom Chromista Caval.-Sm. (1981) - chromists Subkingdom Hacrobia Okamoto, Chantangsi, Horák, Leander & Keeling, 2009 Phylum Cryptista Cavalier-Smith, 1986 Subphylum Rollomonadia Cavalier-Smith, 2013 Superclass Cryptomonada Cavalier-Smith, 2004 Class Cryptophyceae F.E. Fritsch (1927) 1 Genus Guillardia D.R.A. Hill & R. Wetherbee (1990)