Phylum Ciliophora Doflein, 1901 - ciliates Subphylum Intramacronucleata Lynn, 1996 - amphiesmates Class Oligohymenophorea de Puytorac et al., 1974 - oligohymenophoreans Subclass Apostomatia Chatton & Lwoff, 1928 1 Order Apostomatida Chatton & Lwoff, 1928 2 Order Astomatophorida Jankowski, 1966 3 Order Pilisuctorida Jankowski, 1966