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.
         "Spiral and curved bacteria"
           Family Spirillaceae Migula 1894 (Approved Lists 1980)
             Genus Spirillum Ehrenberg 1832 (Approved Lists 1980)
               "Spirillum lipoferum" Beijerinck 1925 see Azospirillum lipoferum (Beijerinck 1925) Tarrand et al. 1979 (Approved Lists 1980)