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 aerobic rods and cocci"
           1 Family Pseudomonadaceae Winslow et al. 1917 (Approved Lists 1980)
           2 Family Azotobacteraceae Pribram 1933 (Approved Lists 1980) see Family Pseudomonadaceae Winslow et al. 1917 (Approved Lists 1980)
           3 Family Rhizobiaceae Conn 1938 (Approved Lists 1980)
           4 Family Methylmonadaceae see Family Methylococcaceae Whittenbury and Krieg 1984
           5 Family Halobacteriaceae Gibbons 1974 (Approved Lists 1980)