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 Miliolata Saidova, 1981 - porcelaneous foraminifers
                                         Subclass Miliolanaᵀ Saidova, 1981
                                           Group "milioloids" Delage & Hérouard, 1896
                                             Superorder Cornuspiroida Jirovec, 1953 [monotypic]
                                               Order Cornuspiridaᵀ Jirovec, 1953
                                                 Suborder Cornuspirinaᵀ Jirovec, 1953
                                                   Family Cornuspiridaeᵀ Schultze, 1854
                                                     Subfamily †Calcivertellinae Loeblich & Tappan, 1964
                                                       1 Genus †Calcivertellaᵀ Cushman & Waters, 1928
                                                       2 Genus †Apterrinella Cushman & Waters, 1928
                                                       3 Genus †Calcitornella Cushman & Waters, 1928
                                                       4 Genus †Plummerinella Cushman & Waters, 1928
                                                       5 Genus †Trepeilopsis Cushman & Waters, 1928
                                                       6 Genus †Carixia Macfadyen, 1941
                                                       7 Genus †Planiinvoluta Leischner, 1961
                                                       8 Genus †Hedraites Henbest, 1963
                                                       9 Genus †Ramovsia Kochansky-Devidé, 1973