organisms see Clade Biota Wagner 2004 [Wiemann, de Queiroz, Rowe, Planavsky, Anderson, Gogarten, Turner & Gauthier 2020]
   Domain eukaryotes see Domain Eukaryota Chatton, 1925
     alveolates Cavalier-Smith see [unranked] Alveolata Cavalier-Smith, 1991
       Phylum Ciliophora Doflein, 1901 - ciliates
         Subphylum Intramacronucleata Lynn, 1996 - amphiesmates
           Class Spirotrichea Bütschli, 1889
             Subclass Choreotrichia Small & Lynn, 1985
               Order Tintinnida Kofoid & Campbell, 1929
                 01 Family Dictyocystidae Haeckel, 1873
                 02 Family Tintinnidiidae Kofoid & Campbell, 1929
                 03 Family Codonellidae Kent, 1881
                 04 Family Codonellopsidae Kofoid & Campbell, 1929
                 05 Family Nolaclusiliidae Sniezek et al., 1991
                 06 Family Metacylididae Kofoid & Campbell, 1929
                 07 Family Ascampbelliellidae Corliss, 1960
                 08 Family Epiplocylididae Kofoid & Campbell, 1939
                 09 Family Rhabdonellidae Kofoid & Campbell, 1929
                 10 Family Ptychocylidae Kofoid & Campbell, 1929 see Family Ptychocylididae Kofoid & Campbell, 1929
                 11 Family Petalotrichidae Kofoid & Campbell, 1929
                 12 Family Cyttarocylididae Kofoid & Campbell, 1939
                 13 Family Xystonellidae Kofoid & Campbell, 1929
                 14 Family Undellidae Kofoid & Campbell, 1929
                 15 Family Tintinnidaeᵀ Claparède & Lachmann, 1858