[organisms] see Clade Biota Wagner 2004 [Wiemann, de Queiroz, Rowe, Planavsky, Anderson, Gogarten, Turner & Gauthier 2020]
   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
           Family "Fusobacteriaceae" Garrity et al. 2001 nom. ined. see Family Fusobacteriaceae Staley and Whitman 2012
             Genus Fusobacterium Knorr 1922 (Approved Lists 1980)
               [Fusobacterium nucleatum] Knorr 1922 (Approved Lists 1980)
                 Fusobacterium nucleatum subsp. fusiforme (ex Veillon and Zuber 1898) Gharbia and Shah 1992