Procaryotic Genera
   Domain "Bacteria" Woese et al. 1990
     Phylum Deferribacteres Garrity and Holt 2001 [monotypic]
       Class Deferribacteres Huber and Stetter 2001 nom. inval. [monotypic] see Class Deferribacteres Huber and Stetter 2002
         Order Deferribacteralesᵀ Huber and Stetter 2001 nom. inval. see Order Deferribacterales Huber and Stetter 2002
           Family Deferribacteraceae Huber and Stetter 2001 nom. inval. see Family Deferribacteraceae Huber and Stetter 2002
             Genus Geovibrio Caccavo et al. 2000