[organisms] see Clade Biota Wagner 2004 [Wiemann, de Queiroz, Rowe, Planavsky, Anderson, Gogarten, Turner & Gauthier 2020]
   Domain Bacteria Woese et al. 1990
     Phylum "Fibrobacteres" Garrity and Holt 2001 see Phylum Fibrobacteres Garrity and Holt 2012
       Class "Fibrobacteres" Garrity & Holt, 2012 see Class Fibrobacteria Spain et al. 2012
         Order "Fibrobacterales" Garrity and Holt 2001 nom. nud. see Order Fibrobacterales Spain et al. 2012
           Family "Fibrobacteraceae" Garrity and Holt 2001 nom. nud. see Family Fibrobacteraceae Spain et al. 2012
             Genus Fibrobacter Montgomery et al. 1988
               [Fibrobacter succinogenes] (Hungate 1950) Montgomery et al. 1988
                 Fibrobacter succinogenes subsp. succinogenesᵀ (Hungate 1950) Montgomery et al. 1988