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 Lagynidaᵀ Mikhalevich, 1980
                                             Family Lagynidaeᵀ Schultze, 1854
                                               Subfamily Lagyninaeᵀ Schultze, 1854
                                                 1 Genus Lagynisᵀ Schultze, 1854
                                                 2 Genus Plagiophrys Claparède & Lachmann, 1859
                                                 3 Genus Myxotheca Schaudinn, 1893
                                                 4 Genus Ophiotuba Rhumbler, 1894
                                                 5 Genus Schultzella Rhumbler, 1903
                                                 6 Genus Rhumblerinella Schmidt, 1929
                                                 7 Genus Pilalla Rhumbler, 1935
                                                 8 Genus Pseudoditrema Deflandre, 1953
                                                 9 Genus Heterotheca Grell, 1988, nom. illeg.