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
               "protists" incertae sedis
                 Class †Algospongia Termier, Termier & Vachard, 1977, incertae sedis
                   Order †Aoujgaliida G. Termier et al., 1975
                     Suborder †Calcifoliina
                       Family †Calcifoliidaeᵀ
                         1 Genus †Calcifoliumᵀ Shvetsov & Birina, 1935
                         2 Genus †Falsocalcifolium Vachard & Cózar, 2005
                         3 Genus †Frustulata Saltovskaya, 1984