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 "Proteobacteria" Craig et al. 2010
               Phylum "Gammaproteobacteria" Garrity et al., 2005 [monotypic]
                 Class Gammaproteobacteriaᵀ Garrity et al. 2005
                   Order Thiotrichales Garrity et al. 2005
                     Genus Caedibacter (ex Preer et al. 1974) Preer and Preer 1982, incertae sedis
                       1 Caedibacter caryophilus corrig. Schmidt et al. 1987
                       2 Caedibacter paraconjugatus Quackenbush 1982
                       3 Caedibacter pseudomutans Quackenbush 1982
                       4 Caedibacter taeniospiralisᵀ (ex Preer et al. 1974) Preer and Preer 1982
                       5 Caedibacter varicaedens Quackenbush 1982