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 Paenibacillusᵀ Ash et al. 1994
                         Paenibacillus larvae (White 1906) Ash et al. 1994
                           1 Paenibacillus larvae subsp. larvaeᵀ (White 1906) Heyndrickx et al. 1996
                           2 Paenibacillus larvae subsp. pulvifaciens (Nakamura 1984) Heyndrickx et al. 1996