Supergroup Rhizaria Cavalier-Smith, 2002 see Infrakingdom Rhizaria Cavalier-Smith, 2002
   Phylum Foraminifera d'Orbigny, 1826 see Subphylum Foraminifera d'Orbigny, 1826
     Class Spirillinata Mikhalevich, 1992
       Subclass Ammodiscana Mikhalevich, 1980
         ?Order Ataxophragmiida Fursenko, 1958
           Superfamily Textularielloidea Groenhagen & Luterbacher, 1966
             Family Pfenderinidae Smout & Sugden, 1962
               Subfamily Pfenderininae Smout & Sugden, 1962
                 1 Genus Pfenderina Henson, 1948
                 2 Genus Drevennia Arnaud-Vanneau, 1980
                 3 Genus Pfenderinella Redmond, 1964 see Genus Pfenderella Redmond, 1964