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 Pseudomonadati (Gibbons and Murray 1978) Oren and Göker 2024
               Phylum Deferribacterota Garrity and Holt 2021 [monotypic]
                 Class Deferribacteresᵀ Huber and Stetter 2002 [monotypic]
                   Order Deferribacteralesᵀ Huber and Stetter 2002
                     Family Deferribacteraceaeᵀ Huber and Stetter 2002
                       Genus Deferribacterᵀ Greene et al. 1997
                         1 Deferribacter abyssi Miroshnichenko et al. 2003
                         2 Deferribacter autotrophicus Slobodkina et al. 2009
                         3 Deferribacter desulfuricans Takai et al. 2003
                         4 Deferribacter thermophilusᵀ Greene et al. 1997