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)
                       01 Fusobacterium canifelinum Conrads et al. 2004
                       02 Fusobacterium equinum Dorsch et al. 2001
                       03 Fusobacterium gonidiaformans (Tunnicliff and Jackson 1925) Moore and Holdeman 1970 (Approved Lists 1980)
                       04 Fusobacterium mortiferum (Harris 1901) Moore and Holdeman 1970 (Approved Lists 1980)
                       05 Fusobacterium naviforme (Jungano 1909) Moore and Holdeman 1970 (Approved Lists 1980)
                       06 Fusobacterium necrogenes (Weinberg et al. 1937) Moore and Holdeman 1970 (Approved Lists 1980)
                       07 Fusobacterium necrophorum (Flügge 1886) Moore and Holdeman 1969 (Approved Lists 1980)
                       08 Fusobacterium nucleatumᵀ Knorr 1922 (Approved Lists 1980)
                       09 Fusobacterium perfoetens (Tissier 1905) Moore and Holdeman 1973 (Approved Lists 1980)
                       10 Fusobacterium periodonticum Slots et al. 1984
                       11 Fusobacterium russii (Hauduroy et al. 1937) Moore and Holdeman 1970 (Approved Lists 1980)
                       12 Fusobacterium simiae Slots and Potts 1982
                       13 Fusobacterium ulcerans Adriaans and Shah 1988
                       14 Fusobacterium varium (Eggerth and Gagnon 1933) Moore and Holdeman 1969 (Approved Lists 1980)