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]
           Domain Bacteria Woese et al. 2024
             Kingdom Bacillatiᵀ (Gibbons and Murray 1978) Oren and Göker 2024
               Phylum Bacillotaᵀ Gibbons and Murray 2021
                 Class Bacilliᵀ Ludwig et al. 2010
                   Order Caryophanalesᵀ Peshkoff 1939 (Approved Lists 1980)
                     Family Bacillaceae Fischer 1895 (Approved Lists 1980)
                       Genus Bacillusᵀ Cohn 1872 (Approved Lists 1980)
                         Bacillus subtilis (Ehrenberg 1835) Cohn 1872 (Approved Lists 1980)
                           1 Bacillus subtilis subsp. subtilisᵀ (Ehrenberg 1835) Nakamura et al. 1999
                           2 Bacillus subtilis subsp. inaquosorum Rooney et al. 2009
                           3 Bacillus subtilis subsp. spizizenii Nakamura et al. 1999