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
       Division Bacteria (Haeckel 1894) see Domain Bacteria Woese et al. 1990
         "Rickettsias" see Order Rickettsiales Gieszczykiewicz 1939 (Approved Lists 1980)
           Order Rickettsiales Gieszczykiewicz 1939 (Approved Lists 1980)
             Family Rickettsiaceae Pinkerton 1936 (Approved Lists 1980)
               1 Tribe Rickettsieae Philip 1957 (Approved Lists 1980) see Family Rickettsiaceae Pinkerton 1936 (Approved Lists 1980)
               2 Tribe Ehrlichieae Philip 1957 (Approved Lists 1980) see Family Anaplasmataceae Philip 1957 (Approved Lists 1980)
               3 Tribe Wolbachieae Philip 1955 (Approved Lists 1980) see Family Rickettsiaceae Pinkerton 1936 (Approved Lists 1980)