prokaryotes - bacteria see Domain Bacteria Woese et al. 1990 Domain "Bacteria" Woese et al. 1990 Phylum "Proteobacteria" Garrity et al. 2005 see Superphylum Proteobacteria Craig et al. 2010 Class Gammaproteobacteria Garrity et al. 2005 Order Chromatiales Imhoff 2005 Family Chromatiaceae Bavendamm 1924 (Approved Lists 1980) 01 Genus Allochromatium Imhoff et al. 1998 02 Genus Amoebobacter Winogradsky 1888 (Approved Lists 1980) see Genus Thiocapsa Winogradsky 1888 (Approved Lists 1980) 03 Genus Chromatium Perty 1852 (Approved Lists 1980) 04 Genus Halochromatium Imhoff et al. 1998 05 Genus Isochromatium Imhoff et al. 1998 06 Genus Lamprobacter Gorlenko et al. 1988 07 Genus Lamprocystis Schroeter 1886 (Approved Lists 1980) 08 Genus Marichromatium Imhoff et al. 1998 09 Genus Nitrosococcus Winogradsky 1892 (Approved Lists 1980) 10 Genus Pfennigia Tindall 1999 see Genus Lamprocystis Schroeter 1886 (Approved Lists 1980) 11 Genus Phaeobacterium Nupur et al. 2015 12 Genus Phaeochromatium Shivali et al. 2012 13 Genus Rhabdochromatium (ex Winogradsky 1888) Dilling et al. 1996 14 Genus Rheinheimera Brettar et al. 2002 15 Genus Thermochromatium Imhoff et al. 1998 16 Genus Thioalkalicoccus Bryantseva et al. 2000 17 Genus Thiobaca Rees et al. 2002 18 Genus Thiocapsa Winogradsky 1888 (Approved Lists 1980) 19 Genus Thiococcus (ex Eimhjellen et al. 1967) Imhoff et al. 1998 20 Genus Thiocystis Winogradsky 1888 (Approved Lists 1980) 21 Genus Thiodictyon Winogradsky 1888 (Approved Lists 1980) 22 Genus Thioflavicoccus Imhoff and Pfennig 2001 23 Genus Thiohalocapsa Imhoff et al. 1998 24 Genus Thiolamprovum Guyoneaud et al. 1998 25 Genus Thiopedia Winogradsky 1888 (Approved Lists 1980) 26 Genus Thiophaeococcus Anil Kumar et al. 2008 27 Genus Thiorhodococcus Guyoneaud et al. 1998 28 Genus Thiorhodovibrio Overmann et al. 1993 29 Genus Thiospirillum Winogradsky 1888 (Approved Lists 1980)