Nitrosococcus Winogradsky 1892 (Approved Lists 1980) emend. Wang et al. 2016 Nitrosococcus nitrosus (Migula 1900) Buchanan 1925 (Approved Lists 1980) 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 Chromatiales Imhoff 2005 Chromatiaceae Bavendamm 1924 (Approved Lists 1980) emend. Sisinthy et al. 2017 Nitrosococcus Winogradsky 1892 (Approved Lists 1980) emend. Wang et al. 2016 Chromatiaceae Bavendamm 1924 (Approved Lists 1980) emend. Sisinthy et al. 2017 Thiopedia Winogradsky 1888 emend. Pfennig and Trüper 1974 (Approved Lists 1980) Thiococcus Imhoff et al. 1998 Rheinheimera Brettar et al. 2002 emend. Hayashi et al. 2018 Thiobaca Rees et al. 2002 Thiorhodococcus Guyoneaud et al. 1998 Thermochromatium Imhoff et al. 1998 Amoebobacter Winogradsky 1888 (Approved Lists 1980) emend. Guyoneaud et al. 1998 Thialkalicoccus (sic) Bryantseva et al. 2000 Thioalkalicoccus (sic) Bryantseva et al. 2000 Thiospirillum Winogradsky 1888 emend. Pfennig and Trüper 1974 (Approved Lists 1980) Rhabdochromatium (ex Winogradsky 1888) Dilling et al. 1996 Thiophaeococcus Anil Kumar et al. 2008 Gallaecimonas Rodríguez-Blanco et al. 2010 Phaeochromatium Shivalia et al. 2012 Phaeobacterium Nupur et al. 2015 Arsukibacterium Schmidt et al. 2016 Thiodictyon Winogradsky 1888 emend. Pfennig and Trüper 1974 (Approved Lists 1980) Thiocapsa Winogradsky 1888 (Approved Lists 1980) emend. Guyoneaud et al. 1998 Ectothiorhodospira Pelsh 1936 (Approved Lists 1980) Lamprocystis Schroeter 1886 (Approved Lists 1980) emend. Imhoff 2001 Thiocystis Winogradsky 1888 (Approved Lists 1980) emend. Imhoff et al. 1998 Chromatium Perty 1852 (Approved Lists 1980) emend. Imhoff et al. 1998 Thiorhodovibrio Overmann et al. 1993 Halochromatium Imhoff et al. 1998 emend. Anil Kumar et al. 2007 Allochromatium Imhoff et al. 1998 Pfennigia Tindall 1999 Lamprobacter Gorlenko et al. 1988 Thiohalocapsa Imhoff et al. 1998 Marichromatium Imhoff et al. 1998 Thiolamprovum Guyoneaud et al. 1998 Thioflavicoccus Imhoff and Pfennig 2001 Isochromatium Imhoff et al. 1998 Imhoffiella Nupur et al. 2017 Pararheinheimera Sisinthy et al. 2017 Nitrosoglobus Hayatsu et al. 2017 Thiosymbion (sic) Zimmermann et al. 2016 Thiosymbium corrig. Zimmermann et al. 2016 Caldichromatium Saini et al. 2020 Nitrosococcus nitrosus (Migula 1900) Buchanan 1925 (Approved Lists 1980) Nitrosococcus oceanus (sic) (Watson 1965) Watson 1971 (Approved Lists 1980) Nitrosococcus oceani corrig. (Watson 1965) Watson 1971 (Approved Lists 1980) Nitrosococcus sp. None 2015 Nitrosococcus halophilus Koops et al. 1990 emend. Campbell et al. 2011 Nitrosococcus watsonii Campbell et al. 2011 Nitrosococcus wardiae Wang et al. 2016 Watson S.W. Taxonomic considerations of the family Nitrobacteriaceae Buchanan. Requests for opinions. 1971 21 3 254 270 International Journal of Systematic Bacteriology Int J Syst Bacteriol 0020-7713 10.1099/00207713-21-3-254 Wang L. Lim C.K. Dang H. Hanson T.E. Klotz M.G. D1FHS, the Type Strain of the Ammonia-Oxidizing Bacterium Nitrosococcus wardiae spec. nov.: Enrichment, Isolation, Phylogenetic, and Growth Physiological Characterization. 2016 7 512 512 Frontiers in Microbiology Front. Microbio. 1664-302X 10.3389/fmicb.2016.00512 27148201 Buchanan R.E. 1925 1 597 General Systematic Bacteriology The Williams and Wilkins Co. Baltimore Koops H.-P. Böttcher B. Möller U.C. Pommerening-Röser A. Stehr G. Description of a new species of Nitrosococcus 1990 154 3 244 248 Archives of Microbiology Arch Microbiol 0302-8933 1432-072X 10.1007/BF00248962 Watson S.W. Buchanan R.E. Gibbons N.E. Genus VI. Nitrosococcus Winogradsky 1892, 127; Nom. cons. Opin. 23, Jud. Comm. 1958, 169 1974 8 454 455 Bergey's Manual of Determinative Bacteriology The Williams and Wilkins Co. Baltimore 0683011170 Campbell M.A. Chain P.S.G. Dang H. El Sheikh A.F. Norton J.M. Ward N.L. Ward B.B. Klotz M.G. Nitrosococcus watsonii sp. nov., a new species of marine obligate ammonia-oxidizing bacteria that is not omnipresent in the world's oceans: calls to validate the names 'Nitrosococcus halophilus' and 'Nitrosomonas mobilis'. 2011 76 1 39 48 FEMS Microbiology Ecology FEMS Microbiol Ecol 0168-6496 10.1111/j.1574-6941.2010.01027.x 21204874 Imhoff J.F. Garrity G.M. Brenner D.J. Krieg N.R. Staley J.T. Family I. Chromatiaceae Bavendamm 1924, 235 (AL) emend. Imhoff 1984b, 339 2005 2, Part B 2 3 40 Bergey's Manual of Systematic Bacteriology Springer New York 0387241442 No reference is available 2015