Bergey's Manual of Systematic Bacteriology Branching order of bacterial phyla (Gupta, 2001) Spirosomaceae Pelobacteraceae Branching order of bacterial phyla (Ciccarelli et al., 2006) Desulfonatronovibrionaceae Thermosediminibacterales Branching order of bacterial phyla (Woese, 1987) Desulfococcaceae Hydrobacteria Eobacteria Branching order of bacterial phyla (Cavalier-Smith, 2002) Geobacterales Thermoguttaceae Desulfosarcinaceae Modulibacteria Adhaeretor PVC superphylum Sedimentisphaeraceae Berkelbacteria Gracilibacteria Numidum Eurybacteria Cesiribacteraceae Bacteroides ureolyticus Non-motile bacteria Lentimonas Arenimicrobia…

aceae Natranaerofaba Anaerohalosphaera Natranaerobiales Dictyoglomus thermophilum Quinella (bacterium) Sporichthyaceae Epidermidibacterium keratini Wolinella Raineya orbicola Brevitalea Negativicoccus Halarsenatibacter Kryptonia Thermodesulfobiaceae Propionicimonas Desulfohalobium Frankiales Mariniluteicoccus Wirthbacteria Natronoanaerobium Branching order of bacterial phyla (Battistuzzi et al., 2004) Fermentibacteria Ornatilinea Brachyspiraceae Nibricoccus Desulfoconvexum Thermoflavimicrobium Blastocatella Geovibrio Caloribacterium Microscillaceae Bernardetiaceae Anaerospora Simkania Thermodesulfobium Anaeroglob

us Holophagaceae Bdellovibrionaceae Natranaerobiaceae Caldithrix Natranaerobaculum Brevefilum Ileibacterium Desmospora Cloacibacillus Mycoplasmatota Cryptobacterium Caldimicrobium Ornithinimicrobiaceae Absiella Atribacter Sedimentisphaerales Asaccharobacter celatus Acanthopleuribacteraceae Peptostreptococcus Eggerthia Cumulibacter Geminisphaera Bdellovibrionota Desulfobacula Thermolithobacteria Faecalibacillus Desulfosalsimonas Ammonifex Cerasicoccus Chlorobaculum tepidum Asaccharobacter Breznakia Thermoleophilum Orbales Silvanigrellales Katanobacteria Syntrophales Desulforhopalus Allobaculum Catenisph