Domain Bacteria Woese et al. 1990
   Phylum Fusobacteria Garrity and Holt 2001 see Phylum Fusobacteria Garrity and Holt 2012
     Class "Fusobacteria" Garrity and Holt 2001 nom. nud. see Class Fusobacteriia Staley and Whitman 2012
       Order "Fusobacteriales" Garrity et al. 2001 nom. ined. see Order Fusobacteriales Staley and Whitman 2012
         1 ?Genus Cetobacterium Foster et al. 1996
         2 Family "Fusobacteriaceae" Garrity et al. 2001 nom. ined. see Family Fusobacteriaceae Staley and Whitman 2012