procaryotes Domain Bacteria Woese et al. 1990 stat. inval. see Domain Bacteria Woese et al. 2024 Phylum Proteobacteria Garrity and Holt 2001 nom. nud. see Phylum Proteobacteria Garrity et al. 2005 stat. inval. Class "Gammaproteobacteria" "Garrity and Holt 2001" nom. nud. see Class Gammaproteobacteria Garrity et al. 2005 Order "Chromatiales" "Garrity and Holt 2001" nom. nud. see Order Chromatiales Imhoff 2005 Family Chromatiaceae Bavendamm 1924 (Approved Lists 1980) 01 Genus Chromatium Perty 1852 (Approved Lists 1980) 02 Genus Allochromatium Imhoff et al. 1998 03 Genus Amoebobacter Winogradsky 1888 (Approved Lists 1980) see Genus Thiocapsa Winogradsky 1888 (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 nom. cons. (Approved Lists 1980) 10 Genus Pfennigia Tindall 1999 see Genus Lamprocystis Schroeter 1886 (Approved Lists 1980) 11 Genus Rhabdochromatium (ex Winogradsky 1888) Dilling et al. 1996 12 Genus Thermochromatium Imhoff et al. 1998 13 Genus Thiocapsa Winogradsky 1888 (Approved Lists 1980) 14 Genus Thiococcus (ex Eimhjellen et al. 1967) Imhoff et al. 1998 15 Genus Thiocystis Winogradsky 1888 (Approved Lists 1980) 16 Genus Thiodictyon Winogradsky 1888 (Approved Lists 1980) 17 Genus Thiohalocapsa Imhoff et al. 1998 18 Genus Thiolamprovum Guyoneaud et al. 1998 19 Genus Thiopedia Winogradsky 1888 (Approved Lists 1980) 20 Genus Thiorhodococcus Guyoneaud et al. 1998 21 Genus Thiorhodovibrio Overmann et al. 1993 22 Genus Thiospirillum Winogradsky 1888 (Approved Lists 1980)