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
                 "amoeboid protists"
                   [Class Mycetozoa de Bary, 1859] see Superclass Mycetozoa de Bary, 1859 ex Rostafinski, 1873
                     [Division Endosporeae Rostafiński, 1873]
                       [Subdivision Amaurosporeae Rostafiński, 1875]
                         [Section Trichophorae Rostafiński, 1875]
                           [Order Calcareae Rostafinski, 1873]
                             1 [Family Cienkowskiaceae Rostafiński, 1873]
                             1.0 [Tribe "Cienkowskiaceae" Rostafinski, 1873, orth. inval. [monotypic]] see Family Cienkowskiaceae Rostafiński, 1873
                             2 [Family "Physaraceae" Chevallier, 1826]
                             2.0 [Tribe "Physaraceae" Rostafinski, 1873, orth. inval.] see Family Physaraceae Chevallier, 1826
                             3 [Family Didymiaceae Rostafiński, 1873]
                             3.0 [Tribe "Didymiaceae" Rostafinski, 1873, orth. inval.] see Family Didymiaceae Rostafiński, 1873
                             4 [Family Spumariacaee Rostafiński, 1873]
                             4.0 [Tribe "Spumariaceae" Rostafinski, 1873, orth. inval.] see Family Spumariacaee Rostafiński, 1873