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 Spirillinata Mikhalevich, 1992
                                         Subclass Ammodiscana Mikhalevich, 1980
                                           Order Ammodiscidaᵀ Mikhalevich, 1980
                                             Family Ammodiscidaeᵀ Reuss, 1862
                                               Subfamily Ammodiscinaeᵀ Reuss, 1862
                                                 Genus Ammodiscusᵀ Reuss, 1862
                                                   Ammodiscus anguillae Höglund, 1947
                                                   Ammodiscus asperellus Krasheninnikov, 1973
                                                   Ammodiscus cretaceous
                                                   †Ammodiscus gaultinus Berthelin, 1880
                                                   Ammodiscus glabiatus
                                                   Ammodiscus glabratus Cushman & Jarvis, 1928
                                                   Ammodiscus incertus (d'Orbigny, 1839)
                                                   Ammodiscus pennyi Cushman & Jarvis, 1928
                                                   Ammodiscus peruvianus Berry, 1928
                                                   Ammodiscus tenuissimus Grzybowski, 1898