Xanthobacteraceae Lee et al. 2005 emend. Hördt et al. 2020 Xanthobacter Wiegel et al. 1978 (Approved Lists 1980) 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 Xanthobacteraceae Lee et al. 2005 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 Rhodobiaceae Garrity et al. 2006 emend. Hördt et al. 2020 Acuticoccaceae Lai et al. 2019 Incertae sedis 664 Nakai et al. 2021 Pseudolabrys Kämpfer et al. 2006 emend. Jung et al. 2022 Pseudoxanthobacter Arun et al. 2008 Xanthobacter Wiegel et al. 1978 (Approved Lists 1980) Methylorhabdus Doronina et al. 1996 Microcyclus Ørskov 1928 (Approved Lists 1980) Angulomicrobium Vasil'eva et al. 1986 Aquabacter Irgens et al. 1993 Ancylobacter Raj 1983 Azorhizobium Dreyfus et al. 1988 emend. Lang et al. 2013 Labrys Vasilyeva and Semenov 1985 emend. Albert et al. 2010 Starkeya Kelly et al. 2000 Liu X.-M. Chen K. Meng C. Zhang L. Zhu J.-C. Huang X. Li S.-P. Jiang J.-D. Pseudoxanthobacter liyangensis sp. nov., isolated from a dichlorodiphenyltrichloroethane-contaminated soil 2014 64 10 3390 3394 International Journal of Systematic and Evolutionary Microbiology Int J Syst Evol Microbiol 1466-5026 1466-5034 10.1099/ijs.0.056507-0 25013230 Kämpfer P. Young C.C. Arun A.B. Shen F.T. Jäckel U. Rosselló-Mora R. Lai W.A. Rekha P.D. Pseudolabrys taiwanensis gen. nov., sp. nov., an alphaproteobacterium isolated from soil 2006 56 10 2469 2472 International Journal of Systematic and Evolutionary Microbiology Int J Syst Evol Microbiol 1466-5026 1466-5034 10.1099/ijs.0.64124-0 17012581 Lee K.B. Liu C.T. Anzai Y. Kim H. Aono T. Oyaizu H. The hierarchical system of the 'Alphaproteobacteria': description of Hyphomonadaceae fam. nov., Xanthobacteraceae fam. nov. and Erythrobacteraceae fam. nov. 2005 55 5 1907 1919 International Journal of Systematic and Evolutionary Microbiology Int J Syst Evol Microbiol 1466-5026 1466-5034 10.1099/ijs.0.63663-0 16166687 Hördt A. García-López M. Meier-Kolthoff J.P. Tindall B.J. Weinhold L.-M. Gronow S. Kyrpides N. Woyke T. Schleuning M. Göker M. Analysis of 1,000+ Type-Strain Genomes Substantially Improves Taxonomic Classification of Alphaproteobacteria 2020 11 468 Frontiers in Microbiology Front. Microbio. 1664-302X 10.3389/fmicb.2020.00468 32373076