List of bacterial orders Branching order of bacterial phyla (Genome Taxonomy Database, 2018) Bergey's Manual of Systematic Bacteriology Eobacteria Branching order of bacterial phyla (Cavalier-Smith, 2002) Geobacterales Hydrobacteria Branching order of bacterial phyla (Ciccarelli et al., 2006) Pelobacteraceae Cesiribacteraceae Thermosediminibacterales Desulfonatronovibrionaceae Thermoguttaceae Desulfosarcinaceae PVC superphylum Sedimentisphaeraceae Modulibacteria Arenimicrobiaceae Lentimonas Desulfococcaceae Branching order of bacterial phyla (Woese, 1987) Spirosomaceae Branching order of bacterial phyla (Gupta, 2001) Bacteroides ureoly…

yticus Ureaplasma loridis Non-motile bacteria Natranaerofaba Adhaeretor Atribacter Sedimentisphaerales Absiella Gracilibacteria Eurybacteria Berkelbacteria Numidum Aquisphaera Haliangium Truepera Magnetococcaceae Alterococcus Thermostilla Thermogutta Phorcysia Aminiphilus Embleya Desulfatiferula Pirellulales Dehalococcoides Thermanaeromonas Ereboglobus Catenibacterium Polycladomyces Oligoflexia Allob

aculum Tepidisphaeraceae Lottiidibacillus Bellilinea Dehalococcoidia Selenihalanaerobacter Mechercharimyces Catenisphaera Caldilinea Desulforhopalus Tepidisphaera Ilumatobacteraceae Desulfonatronobacter Oleiharenicola Natronoanaerobium Wirthbacteria Fermentibacteria Branching order of bacterial phyla (Battistuzzi et al., 2004) Dethiobacter Rariglobus Faecalibaculum Brevifollis Natranaerobius Cetobacterium Coprothermobacter Halobacteroides Zavarzinella Seinonella Aquifex Thiotrichales Orbales Katanobacteria Syntrophales Silvanigrellales Thermoflavimicrobium Simkania Brachyspiraceae Bernardetiaceae Blastocatella Nibricocc