Nitrosomonadaceae Garrity et al. 2006 Nitrosomonadaceae Garrity et al. 2006 Nitrosomonas Winogradsky 1892 (Approved Lists 1980) emend. Campbell et al. 2011 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 Betaproteobacteria Garrity et al. 2006 emend. Boden et al. 2017 Nitrosomonadales Garrity et al. 2006 emend. Boden et al. 2017 Nitrosomonadaceae Garrity et al. 2006 Nitrosomonadales Garrity et al. 2006 emend. Boden et al. 2017 Spirillaceae Migula 1894 (Approved Lists 1980) Gallionellaceae Henrici and Johnson 1935 (Approved Lists 1980) emend. Kojima et al. 2021 Methylophilaceae Garrity et al. 2006 Thiobacillaceae Boden et al. 2017 Sterolibacteriaceae Boden et al. 2017 Usitatibacteraceae Vieira et al. 2021 Nitrosolobus Watson et al. 1971 emend. Watson 1974 (Approved Lists 1980) Nitrosospira Winogradsky and Winogradsky 1933 (Approved Lists 1980) emend. Head et al. 1993 Nitrosomonas Winogradsky 1892 (Approved Lists 1980) emend. Campbell et al. 2011 Garrity G.M. Bell J.A. Lilburn T. Garrity G.M. Brenner D.J. Krieg N.R. Staley J.T. Family I. Nitrosomonadaceae fam. nov. 2005 2, Part C 2 864 Bergey's Manual of Systematic Bacteriology Springer New York 0387241450 Garrity G.M. Holt J.G. Garrity G.M. Boone D.R. Castenholz R.W. The Road Map to the Manual 2001 1 2 119 169 Bergey's Manual of Systematic Bacteriology Springer New York Euzéby J. Validation List No. 107. List of new names and new combinations previously effectively, but not validly, published 2006 56 1 1 6 International Journal of Systematic and Evolutionary Microbiology Int J Syst Evol Microbiol 1466-5026 1466-5034 10.1099/ijs.0.64188-0 16403855 Garrity G.M. Bell J.A. Lilburn T. Garrity G.M. Brenner D.J. Krieg N.R. Staley J.T. Family I. Nitrosomonadaceae fam. nov. 2005 2, Part C 2 864 Bergey's Manual of Systematic Bacteriology Springer New York 0387241450