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
         "Gram-negative aerobic rods and cocci"
           Family Azotobacteraceae Pribram 1933 (Approved Lists 1980) see Family Pseudomonadaceae Winslow et al. 1917 (Approved Lists 1980)
             1 Genus Azotobacter Beijerinck 1901 (Approved Lists 1980)
             2 Genus Azomonas Winogradsky 1938 (Approved Lists 1980)
             3 Genus Beijerinckia Derx 1950 (Approved Lists 1980)
             4 Genus Derxia Jensen et al. 1960 (Approved Lists 1980)