Natura - nature
   actualia - actual entities
     Mundus Plinius - physical world
       naturalia - natural bodies
         [crown] Clade Biota Wagner 2004 [Wiemann, de Queiroz, Rowe, Planavsky, Anderson, Gogarten, Turner & Gauthier 2020]
           Domain Bacteria Woese et al. 1990 [paraphyletic?]
             Phylum Fusobacteria Garrity and Holt 2012 [monotypic]
               Class Fusobacteriiaᵀ Staley and Whitman 2012 [monotypic]
                 Order Fusobacterialesᵀ Staley and Whitman 2012
                   Family Fusobacteriaceaeᵀ Staley and Whitman 2012
                     Genus Fusobacteriumᵀ Knorr 1922 (Approved Lists 1980)
                       Fusobacterium nucleatumᵀ Knorr 1922 (Approved Lists 1980)
                         Fusobacterium nucleatum subsp. fusiforme (ex Veillon and Zuber 1898) Gharbia and Shah 1992