[organisms] see Clade Biota Wagner 2004 [Wiemann, de Queiroz, Rowe, Planavsky, Anderson, Gogarten, Turner & Gauthier 2020]
   Domain Bacteria Woese et al. 1990
     Phylum "Proteobacteria" Garrity et al. 2005 see Superphylum Proteobacteria Craig et al. 2010
       Class Alphaproteobacteria Garrity et al. 2006
         Order Rhodobacterales Garrity et al. 2006
           Family Rhodobacteraceae Garrity et al. 2006
             01 Genus Rhodobacter Imhoff et al. 1984
             02 Genus Ahrensia Uchino et al. 1999
             03 Genus Albidovulum Albuquerque et al. 2003
             04 Genus Amaricoccus Maszenan et al. 1997
             05 Genus Antarctobacter Labrenz et al. 1998
             06 Genus Catellibacterium Tanaka et al. 2004 see Genus Gemmobacter Rothe et al. 1988
             07 Genus Citreicella Sorokin et al. 2006
             08 Genus Dinoroseobacter Biebl et al. 2005
             09 Genus Gemmobacter Rothe et al. 1988
             10 Genus Hirschia Schlesner et al. 1990
             11 Genus Hyphomonas (ex Pongratz 1957) Moore et al. 1984
             12 Genus Loktanella Van Trappen et al. 2004
             13 Genus Jannaschia Wagner-Döbler et al. 2003
             13.0 Genus Thalassobacter Macián et al. 2005
             14 Genus Ketogulonicigenium corrig. Urbance et al. 2001
             15 Genus Leisingera Schaefer et al. 2002
             16 Genus Maricaulis Abraham et al. 1999
             17 Genus Marinovum Martens et al. 2006
             18 Genus Methylarcula Doronina et al. 2000
             19 Genus Nesiotobacter Donachie et al. 2006
             20 Genus Nereida Pujalte et al. 2005
             21 Genus Oceanicaulis Strömpl et al. 2003
             22 Genus Oceanibulbus Wagner-Döbler et al. 2004
             23 Genus Oceanicola Cho and Giovannoni 2004
             24 Genus Octadecabacter Gosink et al. 1998
             25 Genus Palleronia Martínez-Checa et al. 2005
             26 Genus Pannonibacter Borsodi et al. 2003
             27 Genus Paracoccus Davis 1969 (Approved Lists 1980)
             27.0 Genus Thiosphaera Robertson and Kuenen 1984 see Genus Paracoccus Davis 1969 (Approved Lists 1980)
             28 Genus Pelagibaca Cho and Giovannoni 2006
             29 Genus Phaeobacter Martens et al. 2006
             30 Genus Pseudorhodobacter Uchino et al. 2003
             31 Genus Pseudovibrio Shieh et al. 2004
             32 Genus Rhodobaca Milford et al. 2001
             33 Genus Rhodothalassium Imhoff et al. 1998
             34 Genus Rhodovulum Hiraishi and Ueda 1994
             35 Genus Roseibacterium Suzuki et al. 2006
             36 Genus Roseibium Suzuki et al. 2000
             37 Genus Roseicyclus Rathgeber et al. 2005
             38 Genus Roseinatronobacter Sorokin et al. 2000
             39 Genus Roseisalinus Labrenz et al. 2005
             40 Genus Roseivivax Suzuki et al. 1999
             41 Genus Roseobacter Shiba 1991
             42 Genus Roseovarius Labrenz et al. 1999
             43 Genus Rubellimicrobium Denner et al. 2006
             44 Genus Rubrimonas Suzuki et al. 1999
             45 Genus Ruegeria Uchino et al. 1999
             46 Genus Sagittula Gonzalez et al. 1997
             47 Genus Shimia Choi and Cho 2006
             48 Genus Salipiger Martínez-Cánovas et al. 2004
             49 Genus Silicibacter Petursdottir and Kristjansson 1999 see Genus Ruegeria Uchino et al. 1999
             50 Genus Staleya Labrenz et al. 2000 see Genus Sulfitobacter Sorokin 1996
             51 Genus Stappia Uchino et al. 1999
             52 Genus Sulfitobacter Sorokin 1996
             53 Genus Thalassobius Arahal et al. 2005
             54 Genus Thioclava Sorokin et al. 2005
             55 Genus Woodsholea Abraham et al. 2004
             56 Genus Yangia Dai et al. 2006