Procaryotic Genera Domain "Bacteria" Woese et al. 1990 Phylum Proteobacteria Garrity and Holt 2001 see Phylum Proteobacteria Garrity et al. 2005 Class "Gammaproteobacteria" nom. inval. see Class Gammaproteobacteria Garrity et al. 2005 Order "Chromatiales" Garrity et al. 2001 nom. ined. see Order Chromatiales Imhoff 2005 Family Ectothiorhodospiraceae Imhoff 1984 Genus Thiorhodospira Bryantseva et al. 1999