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 Stichotrichia Small & Lynn, 1985
               Order Stichotrichidaᵀ Fauré-Fremiet, 1961
                 Family Amphisiellidae Jankowski, 1979
                   01 Genus Psammomitra Borror, 1972
                   02 Genus Circinella Foissner, 1994
                   03 Genus Pseudouroleptus Hemberger, 1981
                   04 Genus Gastrostyla Engelmann, 1862
                   05 Genus Hemiamphisiella Foissner, 1988
                   06 Genus Paramphisiella Foissner, 1988
                   07 Genus Amphisiellides Foissner, 1988
                   08 Genus Paragastrostyla Hemberger, 1981
                   09 Genus Orthoamphisiella Eigner & Foissner, 1991
                   10 Genus Periholosticha Hemberger, 1985
                   11 Genus Uroleptoides Wenzel, 1953
                   12 Genus Amphisiella Gourret & Roeser, 1888