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]
           Domain Bacteria Woese et al. 1990 [paraphyletic?]
             Superphylum Terrabacteria Battistuzzi et al. 2004
               Phylum Firmicutes corrig. Gibbons and Murray 1978 (Approved Lists 1980)
                 Class Bacilli Ludwig et al. 2010
                   Order Bacillalesᵀ Prévot 1953 (Approved Lists 1980)
                     Family Paenibacillaceae De Vos et al. 2010
                       Genus Ammoniibacillus Sakai et al. 2015
                       1 Genus Paenibacillusᵀ Ash et al. 1994
                       2 Genus Ammoniphilus Zaitsev et al. 1998
                       3 Genus Aneurinibacillus Shida et al. 1996
                       4 Genus Brevibacillus Shida et al. 1996
                       5 Genus Cohnella Kämpfer et al. 2006
                       6 Genus Fontibacillus Saha et al. 2010
                       7 Genus Oxalophagus Collins et al. 1994 [monotypic]
                       8 Genus Saccharibacillus Rivas et al. 2008
                       9 Genus Thermobacillus Touzel et al. 2000