organisms see Clade Biota Wagner 2004 [Wiemann, de Queiroz, Rowe, Planavsky, Anderson, Gogarten, Turner & Gauthier 2020]
Count: -
   Domain eukaryotes see Domain Eukaryota Chatton, 1925
  Count: 1k;12p;37c;157o;717f;2996g;586s; †2o;1g
     alveolates Cavalier-Smith see [unranked] Alveolata Cavalier-Smith, 1991
    Count: 3p;17c;79o;361f;1087g;202s
       Phylum Ciliophora Doflein, 1901 - ciliates
      Count: [o] 10c;57o;258f;679g;1s
         Subphylum Intramacronucleata Lynn, 1996 - amphiesmates
        Count: [o] 8c;52o;245f;647g;1s
           Class Spirotrichea Bütschli, 1889
          Count: [o] 15o;53f;175g
             Subclass Oligotrichia Bütschli, 1889
            Count: [f] 2o;2f;7g
               Order Halteriida Petz & Foissner, 1992 see Order Sporadotrichida Fauré-Fremiet, 1961
              Count: [f] 1f;3g
                 Family Halteriidae Claparède & Lachmann, 1858
                Count: 3g
                   Genus Pelagohalteria Foissner et al., 1988
                  Count: -