Natura - nature
   actualia - actual entities
     Mundus Plinius - physical world
       naturalia - natural bodies
         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
                             Clade Sar Adl et al. 2012 [Simpson & Dunthorn 2020]
                               Infrakingdom Rhizaria Cavalier-Smith, 2002
                                 Phylum Retaria Cavalier-Smith, 2002
                                   Subphylum Foraminifera d'Orbigny, 1826
                                     Class Nodosariata Mikhalevich, 1992, incertae sedis
                                       Subclass Nodosarianaᵀ Mikhalevich, 1992
                                         Order Polymorphinida Mikhalevich, 1980
                                           Suborder †Pleurostomellina Mikhalevich, 1993
                                             Family †Pleurostomellidaeᵀ Reuss, 1860
                                               1 Subfamily Pleurostomellinaeᵀ Reuss, 1860
                                               2 Subfamily †Wheelerellinae Petters, 1954 [monotypic]
                                               3 Subfamily †Cribropleurostomellinae Owen, 1971 [monotypic]
                                               4 Subfamily †Pazdroellinae Gawor-Biedowa, 1987