Superclass Spirotricha Bütschli, 1889 see Class Spirotrichea Bütschli, 1889 Class Oligotrichea Bütschli, 1889 see Subclass Oligotrichia Bütschli, 1889 Subclass Oligotrichia Bütschli, 1889 Order Choreotrichida Small & Lynn, 1985 Suborder Tintinnina Kofoid & Campbell, 1929 see Order Tintinnida Kofoid & Campbell, 1929