organisms see Clade Biota Wagner 2004 [Wiemann, de Queiroz, Rowe, Planavsky, Anderson, Gogarten, Turner & Gauthier 2020] Kingdom Monera Haeckel 1866 see Domain Bacteria Woese et al. 1990 Phylum "anaerobic photosynthetic bacteria" see Domain Bacteria Woese et al. 1990 Class "Purple Nonsulfur Bacteria" see Class Alphaproteobacteria Garrity and Holt 2001 nom. nud. Genus Rhodomicrobium Duchow and Douglas 1949 (Approved Lists 1980)