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
                                     "monothalamids" [paraphyletic]
                                       Class Astrorhizata Saidova, 1981
                                         Subclass Lagynana Mikhalevich, 1980
                                           Order Ammoscalariida Mikhalevich, 1980
                                             Family Hospitellidae Loeblich & Tappan, 1984
                                               1 Genus Hospitellaᵀ Rhumbler, 1911
                                               1.0 [Genus Arhospitellum Rhumbler, 1913] see Genus Hospitella Rhumbler, 1911
                                               2 Genus Nodellum Rhumbler, 1913
                                               x1 [Genus Arthalamophaga Rhumbler, 1913] see Genus Thalamophaga Rhumbler, 1911
                                               x2 [Genus Marsupophaga Rhumbler, 1911] see Genus Thalamophaga Rhumbler, 1911
                                               x3 [Genus Nummophaga Rhumbler, 1911] see Genus Thalamophaga Rhumbler, 1911
                                               x4 [Genus Orbitophaga Rhumbler, 1911] see Genus Thalamophaga Rhumbler, 1911
                                               x4.0 [Genus "Orbitophage" Schlumberger, 1903] see Genus Orbitophaga Rhumbler, 1911
                                               x5 [Genus Tubophaga Rhumbler, 1911] see Genus Thalamophaga Rhumbler, 1911