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 natates Cavalier-Smith, 2021
                   Clade photaria Cavalier-Smith, 2021
                     Clade eucorta Cavalier-Smith, 2021
                       Superkingdom Corticata Lankester, 1878 - corticates
                         Kingdom Chromista Caval.-Sm. (1981) - chromists
                           Subkingdom Harosa Cavalier-Smith, 2010
                             [crown] Clade Sar Adl et al. 2012 [Simpson & Dunthorn 2020]
                               Infrakingdom Rhizaria Cavalier-Smith, 2002
                                 Phylum Retaria Cavalier-Smith, 2002
                                   Subphylum Foraminifera d'Orbigny, 1826
                                     Tubothalamea Pawlowski, Holzmann & Tyszka, 2013
                                       Class Spirillinata Mikhalevich, 1992
                                         Subclass Ammodiscana Mikhalevich, 1980
                                           ?Order Ataxophragmiida Fursenko, 1958
                                             Superfamily Textularielloidea Groenhagen & Luterbacher, 1966
                                               1 ?Family †Syrianidae Kaminski, 2004 [monotypic]
                                               2 Family †Pernerinidae Loeblich & Tappan, 1984
                                               3 Family Textulariellidaeᵀ Groenhagen & Luterbacher, 1966
                                               4 Family †Cuneolinidae Saidova, 1981
                                               5 Family †Dicyclinidae Loeblich & Tappan, 1964
                                               6.1 Family †Pfenderinidae Smout & Sugden, 1962
                                               6.2 Family †Coskinolinidae Moullade, 1965
                                               6.3.1 Family †Hauraniidae Septfontaine, 1988
                                               6.3.2 Family †Parurgoninidae Septfontaine, 1988 [monotypic]
                                               6.4 Family †Orbitolinidae Martin, 1890