Natura - nature
   actualia - actual entities
     Mundus Plinius - physical world
       naturalia - natural bodies
         [crown] Clade Biota Wagner 2004 [Wiemann, de Queiroz, Rowe, Planavsky, Anderson, Gogarten, Turner & Gauthier 2020]
           Clade neomura Cavalier-Smith, 1987
             Domain Eukaryota Chatton, 1925 - eukaryotes
               Clade discaria Cavalier-Smith, 2021
                 Clade dorsates Cavalier-Smith, 2021
                   Clade podiates Cavalier-Smith, 2012
                     [crown] Clade Amorphea Adl et al. 2012 [Simpson, Medina & Adl 2020]
                       Phylum Amoebozoa Lühe, 1913 [coordinate rank]
                         Subphylum Discosa Cavalier-Smith, 2021
                           Class Discoseaᵀ Cavalier-Smith, 2004
                             Subclass Flabellinia Smirnov et al., 2005
                               Order Vannellida Smirnov et al., 2005 [monotypic]
                                 Family Vannellidaeᵀ Bovee, 1970
                                   1 ?Genus Discamoeba Jahn, Bovee & Griffith, 1979
                                   2 ?Genus Unda Schaeffer, 1926
                                   3.1 Genus Ripella Smirnov, Nassonova, Chao & Cavalier-Smith, 2007 [monotypic]
                                   3.2 Genus Vannellaᵀ Bovee, 1965
                                   4 Genus Clydonella Sawyer, 1975, nom. inq.
                                   5 Genus Lingulamoeba Sawyer, 1975, nom. inq. [monotypic]
                                   6 Genus Pessonella M. Pussard, 1973, nom. inq. [monotypic]