Ancylobacter aquaticus (Ørskov 1928) Raj 1983 emend. Hördt et al. 2020 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 Ancylobacter Raj 1983 Ancylobacter aquaticus (Ørskov 1928) Raj 1983 emend. Hördt et al. 2020 Ancylobacter Raj 1983 Ancylobacter rudongensis Xin et al. 2004 Ancylobacter vacuolatus Xin et al. 2006 Ancylobacter polymorphus Xin et al. 2006 Ancylobacter oerskovii Lang et al. 2008 Ancylobacter defluvii Poroshina et al. 2014 Ancylobacter dichloromethanicus Firsova et al. 2010 Ancylobacter abiegnus Zaichikova et al. 2010 Ancylobacter pratisalsi Suarez et al. 2017 Ancylobacter sonchi Agafonova et al. 2017 Ancylobacter lacus Chemodurova et al. 2020 Ancylobacter plantiphilus Chemodurova et al. 2020 Ancylobacter aquaticus (Ørskov 1928) Raj 1983 emend. Hördt et al. 2020 Microcyclus aquaticus Ørskov 1928 (Approved Lists 1980) Skerman V.B.D. McGowan V. Sneath P.H.A. Approved Lists of Bacterial Names 1980 30 1 225 420 International Journal of Systematic Bacteriology Int J Syst Bacteriol 0020-7713 10.1099/00207713-30-1-225 Woese C.R. Maloy S. Mandelco L. Raj H.D. Phylogenetic placement of the Spirosomaceae 1990 13 19 23 Systematic and Applied Microbiology Syst Appl Microbiol 0723-2020 10.1016/S0723-2020(11)80175-X 11538307 Raj H.D. Proposal of Ancylobacter gen. nov. as a substitute for the bacterial genus Microcyclus Orskov 1928. 1983 33 2 397 398 International Journal of Systematic Bacteriology Int J Syst Bacteriol 0020-7713 10.1099/00207713-33-2-397