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

ceae Ureaplasma loridis Gracilibacteria Eurybacteria Berkelbacteria Numidum Branching order of bacterial phyla (Battistuzzi et al., 2004) Fermentibacteria Atribacter Sedimentisphaerales Absiella Adhaeretor Natronoanaerobium Wirthbacteria Cryptobacterium Natranaerobaculum Caldithrix Natranaerobiaceae Mycoplasmatota Brevefilum Ileibacterium Caldimicrobium Ornithinimicrobiaceae Desmospora Cloacibacillus Bdellovibrionaceae

Dehalococcoidia Catenibacterium Catenisphaera Selenihalanaerobacter Mechercharimyces Oligoflexia Desulfonatronobacter Lottiidibacillus Tepidisphaeraceae Bellilinea Polycladomyces Thermanaeromonas Caldilinea Desulforhopalus Oleiharenicola Ilumatobacteraceae Tepidisphaera Ereboglobus Allobaculum Katanobacteria Orbales Syntrophales Silvanigrellales Sneathia Persicobacteraceae Desulfovirgula Borreliaceae Lebetimonas Diplocalyx Coriobacterium Desulfofrigus Bryocella Caldanaerovirga Geobacter lovleyi Lactivibrio Dendrosporobacter Geobacter argillaceus Pyramidobacter Singulisphaera Denitrovibrio Dehalobacter Beduini Thermovirga Desulfococcus Lihuaxuella Desulfospira Raineyella Acetonema Coriobacteriia