Natura - nature
   actualia - actual entities
     Mundus Plinius - physical world
       naturalia - natural bodies
         [crown clade] Biota J.R. Wagner, 2004 [J. Wiemann et al., 2020]
           neomura T. Cavalier-Smith, 1987
             Eukaryota Chatton, 1925 - eukaryotes
               discaria T. Cavalier-Smith, 2022(2021)
                 natates T. Cavalier-Smith, 2022(2021)
                   photaria T. Cavalier-Smith, 2022(2021)
                     eucorta T. Cavalier-Smith, 2022(2021)
                       [node-based clade] Corticata (Lankester, 1878) T. Cavalier-Smith, in T. Cavalier-Smith et al., 2015 - corticates
                         Chromista T. Cavalier-Smith, 1981, nom. descript. - chromists
                           Harosa T. Cavalier-Smith, 2010
                             [crown clade] Sar S.M. Adl et al., 2012 [A.G.B. Simpson & M. Dunthorn, 2020]
                               Rhizaria T. Cavalier-Smith, 2002
                                 Retaria T. Cavalier-Smith, 2002
                                   Foraminifera (A. d'Orbigny, 1826) Mikhalevich, 1980
                                     "monothalamids" Pawlowski et al., 2003 [paraphyletic]
                                       Astrorhizata Saidova, 1981
                                         Astrorhizana Saidova, 1981
                                           Psammosphaerida Haeckel, 1894
                                             Stegnamminina Mikhalevich et al., 2000
                                               Stegnamminoidea Moreman, 1930
                                                 Stegnamminidae Moreman, 1930
                                                   Hemisphaerammininae Loeblich & Tappan, 1961
                                                     Hemisphaerammina Loeblich & Tappan, 1957
                                                       Hemisphaerammina crassa Bell, 2000