living organisms see Clade Biota Wagner 2004 [Wiemann, de Queiroz, Rowe, Planavsky, Anderson, Gogarten, Turner & Gauthier 2020]
   Superkingdom Prokaryotae see Superkingdom Prokarya
     Kingdom Monera Haeckel 1866 see Domain Bacteria Woese et al. 1990 stat. inval.
       Division Bacteria Murray 1974 nom. vernac. see Domain Bacteria Woese et al. 1990 stat. inval.
         "Gram-negative anaerobic bacteria"
           Family Bacteroidaceae Pribram 1933 (Approved Lists 1980)
             Genus Fusobacterium Knorr 1922 (Approved Lists 1980)
               Fusobacterium necrophorum (Flügge 1886) Moore and Holdeman 1969 (Approved Lists 1980)