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
                 Family Tintinnidaeᵀ Claparède & Lachmann, 1858
                   1 Genus Tintinnus Schrank, 1803
                   2 Genus Eutintinnus Kofoid & Campbell, 1939
                   3 Genus Amphorellopsis Kofoid & Campbell, 1929
                   4 Genus Salpingacantha Kofoid & Campbell, 1929
                   5 Genus Salpingella Jörgensen, 1924
                   6 Genus Amphorides Strand, 1929[1928]
                   7 Genus Steenstrupiella Kofoid & Campbell, 1929