Aquirestis Hahn and Schauer 2007 Aquirestis Hahn and Schauer 2007 Aquirestis calciphila Hahn and Schauer 2007 Universal Root Woese et al. 1990 Bacteria (None 2015) Woese et al. 1990 Bacteroidota corrig. Krieg et al. 2021 Bacteroidetes (sic) Krieg et al. 2021 non Bacteroidetes Krieg 2012 Chitinophagia Munoz et al. 2017 emend. García-López et al. 2019 Chitinophagales Munoz et al. 2017 emend. Hahnke et al. 2016 Saprospiraceae Krieg et al. 2012 emend. Hahnke et al. 2016 Aquirestis Hahn and Schauer 2007 Saprospiraceae Krieg et al. 2012 emend. Hahnke et al. 2016 Lewinella Sly et al. 1998 emend. Khan et al. 2007 Aureispira Hosoya et al. 2006 emend. Hosoya et al. 2007 Saprospira Gross 1911 emend. Lewin and Leadbetter 1974 (Approved Lists 1980) Portibacter Yoon et al. 2014 Rubidimonas Yoon et al. 2012 Membranicola Li et al. 2016 Haliscomenobacter van Veen et al. 1973 (Approved Lists 1980) Phaeodactylibacter Chen et al. 2014 Epifloribacter corrig. Xia et al. 2008 Epiflobacter (sic) Xia et al. 2008 Aquirestis calciphila Hahn and Schauer 2007 Hahn M.W. Schauer M. ‘Candidatus Aquirestis calciphila’ and ‘Candidatus Haliscomenobacter calcifugiens’, filamentous, planktonic bacteria inhabiting natural lakes 2007 57 5 936 940 International Journal of Systematic and Evolutionary Microbiology Int J Syst Evol Microbiol 1466-5026 1466-5034 10.1099/ijs.0.64807-0 17473236 The authors (Hahn and Schauer 2007) do not propose a placement in higher taxa for Candidatus Aquirestis. Hahn M.W. Schauer M. ‘Candidatus Aquirestis calciphila’ and ‘Candidatus Haliscomenobacter calcifugiens’, filamentous, planktonic bacteria inhabiting natural lakes 2007 57 5 936 940 International Journal of Systematic and Evolutionary Microbiology Int J Syst Evol Microbiol 1466-5026 1466-5034 10.1099/ijs.0.64807-0 17473236