Helicobacteraceae Garrity et al. 2006 emend. Waite et al. 2017 Helicobacteraceae Garrity et al. 2006 emend. Waite et al. 2017 Helicobacter Goodwin et al. 1989 emend. Vandamme et al. 1991 Universal Root Woese et al. 1990 Bacteria (None 2015) Woese et al. 1990 Campylobacterota Waite et al. 2021 Campylobacteria Waite et al. 2017 Campylobacterales Garrity et al. 2006 Helicobacteraceae Garrity et al. 2006 emend. Waite et al. 2017 Campylobacterales Garrity et al. 2006 Hydrogenimonaceae Garrity et al. 2004 Campylobacteraceae Vandamme and De Ley 1991 emend. Waite et al. 2017 Arcobacteraceae Waite et al. 2020 Nitratiruptoraceae Waite et al. 2020 Sulfurospirillaceae Waite et al. 2020 Sulfurovaceae Waite et al. 2020 Thiovulaceae Waite et al. 2017 Sulfurimonadaceae Waite et al. 2020 Hydrogenimonadaceae (Garrity et al. 2004) Waite et al. 2020 Thiobarbaceae Assié et al. 2020 Thiovulum Hinze 1913 emend. La Rivière 1974 (Approved Lists 1980) Sulfurovum Inagaki et al. 2004 emend. Mino et al. 2014 Sulfuricurvum Kodama and Watanabe 2004 Wolinella Tanner et al. 1981 Sulfurimonas Inagaki et al. 2003 emend. Wang et al. 2020 Helicobacter Goodwin et al. 1989 emend. Vandamme et al. 1991 Pseudohelicobacter Waite et al. 2019 Kodama Y. Watanabe K. Sulfuricurvum kujiense gen. nov., sp. nov., a facultatively anaerobic, chemolithoautotrophic, sulfur-oxidizing bacterium isolated from an underground crude-oil storage cavity. 2004 54 6 2297 2300 International Journal of Systematic and Evolutionary Microbiology Int J Syst Evol Microbiol 1466-5026 1466-5034 10.1099/ijs.0.63243-0 15545474 Waite D.W. Chuvochina M.S. Hugenholtz P. Whitman W.B. Road Map of the Phylum Campylobacterota 2014 1 3 Bergey's Manual of Systematics of Archaea and Bacteria John Wiley & Sons Hoboken, New Jersey 1118960602 10.1002/9781118960608.bm00040 Inagaki F. Takai K. Nealson K.H. Horikoshi K. Sulfurovum lithotrophicum gen. nov., sp. nov., a novel sulfur-oxidizing chemolithoautotroph within the epsilon-Proteobacteria isolated from Okinawa Trough hydrothermal sediments. 2004 54 5 1477 1482 International Journal of Systematic and Evolutionary Microbiology Int J Syst Evol Microbiol 1466-5026 1466-5034 10.1099/ijs.0.03042-0 15388698 Labrenz M. Grote J. Mammitzsch K. Boschker H.T.S. Laue M. Jost G. Glaubitz S. Jürgens K. Sulfurimonas gotlandica sp. nov., a chemoautotrophic and psychrotolerant epsilonproteobacterium isolated from a pelagic redoxcline, and an emended description of the genus Sulfurimonas 2013 63 11 4141 4148 International Journal of Systematic and Evolutionary Microbiology Int J Syst Evol Microbiol 1466-5026 1466-5034 10.1099/ijs.0.048827-0 23749282 Garrity G.M. Bell J.A. Lilburn T. Garrity G.M. Brenner D.J. Krieg N.R. Staley J.T. Family II. Helicobacteraceae fam. nov. 2005 2, Part C 2 1168 Bergey's Manual of Systematic Bacteriology Springer New York 0387241450 Euzéby J. Validation List No. 107. List of new names and new combinations previously effectively, but not validly, published 2006 56 1 1 6 International Journal of Systematic and Evolutionary Microbiology Int J Syst Evol Microbiol 1466-5026 1466-5034 10.1099/ijs.0.64188-0 16403855 Garrity G.M. Bell J.A. Lilburn T. Garrity G.M. Brenner D.J. Krieg N.R. Staley J.T. Family II. Helicobacteraceae fam. nov. 2005 2, Part C 2 1168 Bergey's Manual of Systematic Bacteriology Springer New York 0387241450 Waite D.W. Vanwonterghem I. Rinke C. Parks D.H. Zhang Y. Takai K. Sievert S.M. Simon J. Campbell B.J. Hanson T.E. Woyke T. Klotz M.G. Hugenholtz P. Comparative Genomic Analysis of the Class Epsilonproteobacteria and Proposed Reclassification to Epsilonbacteraeota (phyl. nov.). 2017 8 682 682 Frontiers in Microbiology Front. Microbio. 1664-302X 10.3389/fmicb.2017.00682 28484436