living organisms see Clade Biota Wagner 2004 [Wiemann, de Queiroz, Rowe, Planavsky, Anderson, Gogarten, Turner & Gauthier 2020]
Count: 4k;54p;156c;911o;7123f;17,575g;4762s;36ss;8v;19; ‡1f;6g;7s;1ss; †1c;10o;10f;19g;1s
   Superkingdom Eukaryotae see Domain Eukaryota Chatton, 1925
  Count: [c] 2k;51p;154c;900o;7001f;17,209g;4300s;33ss;8v; ‡1f;6g;7s;1ss; †1c;10o;10f;19g;1s
     Kingdom Animalia Linnaeus, 1758 - animals
    Count: [c] 38p;101c;595o;5766f;13,419g;3233s;32ss;3v; ‡1f;6g;7s;1ss; †1c;9o;10f;16g;1s
       Subkingdom Protozoa Goldfuss, 1818 see Kingdom Protozoa Goldfuss, 1818
      Count: [c] 7p;27c;109o;562f;1802g;273s;1ss; †4g
         Phylum Ciliophora Doflein, 1901 - ciliates
        Count: [o] 3c;23o;201f;435g;6s; †4g
           Class Oligohymenophora see Class Oligohymenophorea de Puytorac et al., 1974
          Count: [f] 4o;64f;113g;1s
             1 Subclass Hymenostomata see Subclass Hymenostomatia (Delage & Hérouard, 1896) Cavalier-Smith, 1993
            Count: [f] 3o;47f;81g
             2 Subclass Peritricha Stein, 1859 - peritrichs see Subclass Peritrichia Stein, 1859
            Count: [f] 1o;17f;32g;1s