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.
         "Rickettsias" see Order Rickettsiales Gieszczykiewicz 1939 (Approved Lists 1980)
           Order Rickettsiales Gieszczykiewicz 1939 (Approved Lists 1980)
             Family Rickettsiaceae Pinkerton 1936 (Approved Lists 1980)
               Tribe Ehrlichieae Philip 1957 (Approved Lists 1980) see Family Anaplasmataceae Philip 1957 (Approved Lists 1980)
                 Genus Neorickettsia Philip et al. 1953 (Approved Lists 1980)
                   Neorickettsia helminthoeca Philip et al. 1953 (Approved Lists 1980)