Eukaryota Chatton, 1925 - eukaryotes see Domain Eukaryota Chatton, 1925 Phylum Alveolata Cavalier-Smith, 1991 see Superphylum Alveolata Cavalier-Smith, 1991 Subphylum Ciliophora Doflein, 1901 see Phylum Ciliophora Doflein, 1901 Class Litostomatea Small & Lynn, 1981 1 Subclass Haptoria Corliss, 1974 2 Subclass Trichostomatia Bütschli, 1889