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
                                     Class Nodosariata Mikhalevich, 1992, incertae sedis
                                       Subclass Nodosarianaᵀ Mikhalevich, 1992
                                         Order Nodosariidaᵀ Calkins, 1926
                                           Suborder Syzraniina Mikhalevich, 1992
                                             Superfamily †Caligelloidea Reytlinger, 1959 [monotypic]
                                               Family †Caligellidaeᵀ Reytlinger, 1959
                                                 1 Genus †Ademassa Vachard, 1993
                                                 2 Genus †Baituganella Lipina, 1955
                                                 3 Genus †Caligellaᵀ Antropov, 1950
                                                 4 Genus †Glubokoevella Pronina, 1970
                                                 5 Genus †Paracaligella Lipina, 1955