Thiocystis violacea Winogradsky 1888 (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 Thiocystis Winogradsky 1888 (Approved Lists 1980) emend. Imhoff et al. 1998 Thiocystis violacea Winogradsky 1888 (Approved Lists 1980) Thiocystis Winogradsky 1888 (Approved Lists 1980) emend. Imhoff et al. 1998 Thiocystis chemoclinalis Peduzzi et al. 2011 Thiocystis minor (Winogradsky 1888) Imhoff et al. 1998 Thiocystis cadagnonensis Peduzzi et al. 2011 Thiocystis violascens (Perty 1852) Imhoff et al. 1998 Thiocystis gelatinosa (Winogradsky 1888) Pfennig and Trüper 1971 (Approved Lists 1980) Thiocystis violacea Winogradsky 1888 (Approved Lists 1980) Imhoff J.F. Süling J. Petri R. Phylogenetic relationships among the Chromatiaceae, their taxonomic reclassification and description of the new genera Allochromatium, Halochromatium, Isochromatium, Marichromatium, Thiococcus, Thiohalocapsa and Thermochromatium. 1998 48 4 1129 1143 International Journal of Systematic Bacteriology Int J Syst Bacteriol 0020-7713 10.1099/00207713-48-4-1129 9828415 Winogradsky S. Beiträge zur Morphologie und Physiologie der Bacterien. 1888 1 120 Zur Morphologie und Physiologie der Schwefelbakterien. Arthur Felix Leipzig