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 Alkalibacillus Jeon et al. 2005
                         1 Alkalibacillus almallahensis Perez-Dav et al. 2014
                         2 Alkalibacillus filiformis Romano et al. 2005
                         3 Alkalibacillus flavidus Yoon et al. 2010
                         4 Alkalibacillus haloalkaliphilus (Fritze 1996) Jeon et al. 2005
                         5 Alkalibacillus halophilus Tian et al. 2009
                         6 Alkalibacillus salilacus Jeon et al. 2005
                         7 Alkalibacillus silvisoli Usami et al. 2007