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 Oligohymenophorea de Puytorac et al., 1974 - oligohymenophoreans Subclass Hymenostomatia (Delage & Hérouard, 1896) Cavalier-Smith, 1993 - hymenostome ciliates