Azomonotrichon macrocytogenes (Jensen 1955) Thompson and Skerman 1981 Universal Root Woese et al. 1990 Bacteria (None 2015) Woese et al. 1990 Proteobacteria (sic) Garrity et al. 2021 Pseudomonadota corrig. Garrity et al. 2021 Alphaproteobacteriota (sic) Garrity et al. 2021 Gammaproteobacteria Garrity et al. 2005 emend. Williams and Kelly 2013 Pseudomonadales Orla-Jensen 1921 (Approved Lists 1980) emend. Liao et al. 2020 Pseudomonadaceae Winslow et al. 1917 (Approved Lists 1980) Azomonotrichon Thompson and Skerman 1981 Azomonotrichon macrocytogenes (Jensen 1955) Thompson and Skerman 1981 Azomonotrichon Thompson and Skerman 1981 Azomonas macrocytogenes (ex Baillie et al. 1962) New and Tchan 1982 Azomonotrichon macrocytogenes (Jensen 1955) Thompson and Skerman 1981 Azotobacter macrocytogenes Jensen 1955 (Approved Lists 1980) List Editor Validation List no. 6. Validation of the publication of new names and new combinations previously effectively published outside the IJSB. 1981 31 2 215 218 International Journal of Systematic Bacteriology Int J Syst Bacteriol 0020-7713 10.1099/00207713-31-2-215 Thompson J.P. Skerman V.B.D. Thompson J.P. Skerman V.B.D. 1979 1 405 Azotobacteraceae: The Taxonomy and Ecology of the Aerobic Nitrogen-Fixing Bacteria Academic Press London 0126890501