Protozoa Goldfuss, 1818 - protozoans Phylum Ciliophora Doflein, 1901 - ciliates Class Kinetofragminophorea - kinetofragminophoreans see Phylum Ciliophora Doflein, 1901 Subclass Gymnostomatia - gymnostome ciliates see Phylum Ciliophora Doflein, 1901 Order Karyorelictida see Class Karyorelictea Corliss, 1974 Order Pleurostomatida Schewiakoff, 1896 Order Primociliatida J.O. Corliss, 1974 see Genus Stephanopogon G. Entz, 1884 Order Prostomatida Schewiakoff, 1896