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 Litostomatea Small & Lynn, 1981
             Subclass Trichostomatia Bütschli, 1889
               Order Entodiniomorphida Reichenow, in Doflein & Reichenow, 1929
                 Suborder Entodiniomorphinaᵀ Reichenow, in Doflein & Reichenow, 1929
                   Family Ophryoscolecidaeᵀ Stein, 1859
                     1 Genus Entodinium Stein, 1859
                     2 Genus Ophryoscolex Stein, 1859
                     3 Genus Eudiplodinium Dogiel, 1927
                     4 Genus Ostracodinium Dogiel, 1927
                     5 Genus Enoploplastron Kofoid & MacLennan, 1932