Procaryotic Genera Count: [*] 25p;39c;84o;215f;1008g [28 May 2016] Domain "Bacteria" Woese et al. 1990 Count: [*] 23p;31c;72o;194f;935g [28 May 2016] Phylum Proteobacteria Garrity and Holt 2001 see Phylum Proteobacteria Garrity et al. 2005 Count: [*] 5c;34o;72f;430g [27 May 2016] Class "Alphaproteobacteria" Garrity and Holt 2001 nom. nud. see Class Alphaproteobacteria Garrity et al. 2006 Count: [*] 6o;18f;133g [27 May 2016] Order "Rhodobacterales" [monotypic] see Order Rhodobacterales Garrity et al. 2006 Count: [*] 1f;23g [27 May 2016] Family "Rhodobacteraceae" see Family Rhodobacteraceae Garrity et al. 2006 Count: [*] 23g [27 May 2016] 01 Genus Rhodobacter Imhoff et al. 1984 Count: - 02 Genus Ahrensia Uchino et al. 1999 Count: - 03 Genus Amaricoccus Maszenan et al. 1997 Count: - 04 Genus Antarctobacter Labrenz et al. 1998 Count: - 05 Genus Gemmobacter Rothe et al. 1988 Count: - 06 Genus Hirschia Schlesner et al. 1990 Count: - 07 Genus Hyphomonas (ex Pongratz 1957) Moore et al. 1984 Count: - 08 Genus Maricaulis Abraham et al. 1999 Count: - 09 Genus Methylarcula Doronina et al. 2000 Count: - 10 Genus Octadecabacter Gosink et al. 1998 Count: - 11 Genus Paracoccus Davis 1969 (Approved Lists 1980) Count: - 12 Genus Rhodovulum Hiraishi and Ueda 1994 Count: - 13 Genus Roseibium Suzuki et al. 2000 Count: - 14 Genus Roseinatronobacter Sorokin et al. 2000 Count: - 15 Genus Roseivivax Suzuki et al. 1999 Count: - 16 Genus Roseobacter Shiba 1991 Count: - 17 Genus Roseovarius Labrenz et al. 1999 Count: - 18 Genus Rubrimonas Suzuki et al. 1999 Count: - 19 Genus Ruegeria Uchino et al. 1999 Count: - 20 Genus Sagittula Gonzalez et al. 1997 Count: - 21 Genus Staleya Labrenz et al. 2000 see Genus Sulfitobacter Sorokin 1996 Count: - 22 Genus Stappia Uchino et al. 1999 Count: - 23 Genus Sulfitobacter Sorokin 1996 Count: -