Rhodobiaceae Garrity et al. 2006 emend. Hördt et al. 2020 Rhodobiaceae Garrity et al. 2006 emend. Hördt et al. 2020 Rhodobium Hiraishi et al. 1995 emend. Urdiain et al. 2008 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 Alphaproteobacteria Garrity et al. 2006 Hyphomicrobiales Douglas 1957 (Approved Lists 1980) emend. Hördt et al. 2020 Rhodobiaceae Garrity et al. 2006 emend. Hördt et al. 2020 Hyphomicrobiales Douglas 1957 (Approved Lists 1980) emend. Hördt et al. 2020 Hyphomicrobiaceae Babudieri 1950 (Approved Lists 1980) emend. Hördt et al. 2020 Afifellaceae Hördt et al. 2020 Ahrensiaceae Hördt et al. 2020 Amorphaceae Hördt et al. 2020 Aurantimonadaceae Hördt et al. 2020 Blastochloridaceae Hördt et al. 2020 Boseaceae Hördt et al. 2020 Breoghaniaceae Hördt et al. 2020 Devosiaceae Hördt et al. 2020 Kaistiaceae Hördt et al. 2020 Parvibaculaceae Hördt et al. 2020 Phreatobacteraceae Hördt et al. 2020 Pleomorphomonadaceae Hördt et al. 2020 Pseudoxanthobacteraceae Hördt et al. 2020 Stappiaceae Hördt et al. 2020 Tepidamorphaceae Hördt et al. 2020 Ancalomicrobiaceae Dahal et al. 2018 emend. Felföldi et al. 2019 Bartonellaceae Gieszczykiewicz 1939 (Approved Lists 1980) emend. Brenner et al. 1993 Beijerinckiaceae Garrity et al. 2006 emend. Hördt et al. 2020 Nitrobacteraceae Buchanan 1917 (Approved Lists 1980) emend. Hördt et al. 2020 Brucellaceae Breed et al. 1957 (Approved Lists 1980) Chelatococcaceae Dedysh et al. 2016 Cohaesibacteraceae Hwang and Cho 2008 emend. Hördt et al. 2020 Methylobacteriaceae Garrity et al. 2006 emend. Hördt et al. 2020 Methylocystaceae Bowman 2006 emend. Hördt et al. 2020 Notoacmeibacteraceae Huang et al. 2017 emend. Hördt et al. 2020 Phyllobacteriaceae Mergaert and Swings 2006 emend. Hördt et al. 2020 Rhizobiaceae Conn 1938 (Approved Lists 1980) emend. Hördt et al. 2020 Xanthobacteraceae Lee et al. 2005 emend. Hördt et al. 2020 Acuticoccaceae Lai et al. 2019 Incertae sedis 664 Nakai et al. 2021 Parvibaculum Schleheck et al. 2004 Roseospirillum Glaeser and Overmann 2001 Anderseniella Brettar et al. 2007 Rhodobium Hiraishi et al. 1995 emend. Urdiain et al. 2008 Afifella Urdiain et al. 2009 Tepidamorphus Albuquerque et al. 2010 Amorphus Zeevi Ben Yosef et al. 2008 Lutibaculum Anil Kumar et al. 2012 emend. Lee 2019 Rhodoligotrophos Fukuda et al. 2012 Tepidicaulis Takeuchi et al. 2015 Microbaculum Su et al. 2017 Butyratibacter Wang et al. 2017 Micropelagius corrig. 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