living organisms see Clade Biota Wagner 2004 [Wiemann, de Queiroz, Rowe, Planavsky, Anderson, Gogarten, Turner & Gauthier 2020]
   Superkingdom Eukaryotae see Domain Eukaryota Chatton, 1925
     Kingdom Animalia Linnaeus, 1758 - animals
       Subkingdom Protozoa Goldfuss, 1818 see Kingdom Protozoa Goldfuss, 1818
         Phylum Ciliophora Doflein, 1901 - ciliates
           Class Polyhymenophora Jankowski, 1967 see Class Spirotrichea Bütschli, 1889
             Subclass Spirotricha see Class Spirotrichea Bütschli, 1889
               Order Oligotrichida Bütschli, 1889 see Subclass Oligotrichia Bütschli, 1889
                 Suborder Tintinnina Kofoid & Campbell, 1929 see Order Tintinnida Kofoid & Campbell, 1929
                   1 Family Codonellidae Kent, 1881
                   2 Family Codonellopsidae Kofoid & Campbell, 1929
                   3 Family Coxliellidae Kofoid & Campbell, 1939 see Family Metacylididae Kofoid & Campbell, 1929
                   3 Family Metacylididae Kofoid & Campbell, 1929
                   4 Family Dictyocystidae Haeckel, 1873
                   5 Family Xystonellidae Kofoid & Campbell, 1929
                   6 Family Tintinnidae Claparède & Lachmann, 1858
                   7 Family Cytarocylididae see Family Cyttarocylididae Kofoid & Campbell, 1939