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 Chloroflexi Garrity and Holt 2001
                 Class Ktedonobacteria corrig. Cavaletti et al. 2007
                   Order Ktedonobacteralesᵀ corrig. Cavaletti et al. 2007
                     Family Ktedonobacteraceaeᵀ corrig. Cavaletti et al. 2007 [monotypic]
                       Genus Ktedonobacterᵀ corrig. Cavaletti et al. 2007 [monotypic]
                         1 Ktedonobacter racemiferᵀ corrig. Cavaletti et al. 2007