Phylum Ciliophora Doflein, 1901 - ciliates Subphylum Intramacronucleata Lynn, 1996 - amphiesmates Class Spirotrichea Bütschli, 1889 Subclass Choreotrichia Small & Lynn, 1985 1 Order Tintinnida Kofoid & Campbell, 1929 2 Order Choreotrichida Small & Lynn, 1985