Phylum "Aquificae"

Class Aquificae

Order Aquificales

Family Aquificaceae

Aquifex - Calderobacterium - Hydrogenivirga - Hydrogenobacter - Hydrogenobaculum - Thermocrinis

Family Desulfurobacteriaceae

Balnearium - Desulfurobacterium - Thermovibrio

Family Hydrogenothermaceae

Hydrogenothermus - Persephonella - Sulfurihydrogenibium

Phylum "Bacteroidetes"

Class "Bacteroidetes"

Order "Bacteroidales"

Family Bacteroidaceae

Acetomicrobium - Anaerophaga - Anaerorhabdus - Bacteroides - Pontibacter

Family "Porphyromonadaceae"

Barnesiella - Capsularis - Dysgonomonas - Hallella - Oribaculum - Paludibacter - Parabacteroides - Porphyromonas - Proteiniphilum - Tannerella - Xylanibacter

Family "Prevotellaceae"

Prevotella

Family "Rikenellaceae"

Alistipes - Alkaliflexus - Marinilabilia - Petrimonas - Rikenella

Unclassified "Bacteroidales"

Acetofilamentum - Acetothermus

Class Flavobacteria

Order "Flavobacteriales"

Family "Blattabacteriaceae"

Blattabacterium

Family Cryomorphaceae

Algoriphagus - Brumimicrobium - Crocinitomix - Cryomorpha - Fluviicola - Lishizhenia - Owenweeksia

Family Flavobacteriaceae

Aequorivita - Algibacter - Aquimarina - Arenibacter - Bergeyella - Bizionia - Capnocytophaga - Cellulophaga - Chryseobacterium - Cloacibacterium - Coenonia - Costertonia - Croceibacter - Dokdonia - Donghaeana - Elizabethkingia - Empedobacter - Epilithonimonas - Flagellimonas - Flaviramulus - Flavobacterium - Formosa - Gaetbulibacter - Gaetbulimicrobium - Galbibacter - Gelidibacter - Gillisia - Gilvibacter - Gramella - Kaistella - Kordia - Krokinobacter - Lacinutrix - Leeuwenhoekiella - Lutibacter - Lutimonas - Maribacter - Mariniflexile - Marixanthomonas - Mesonia - Muricauda - Myroides - Nonlabens - Olleya - Ornithobacterium - Persicivirga - Pibocella - Polaribacter - Psychroflexus - Psychroserpens - Riemerella - Robiginitalea - Salegentibacter - Sandarakinotalea - Sediminibacter - Sediminicola - Sejongia - Stanierella - Stenothermobacter - Subsaxibacter - Subsaximicrobium - Tamlana - Tenacibaculum - Ulvibacter - Vitellibacter - Wautersiella - Weeksella - Winogradskyella - Yeosuana - Zeaxanthinibacter - Zhouia - Zobellia - Zunongwangia

Class "Sphingobacteria"

Order "Sphingobacteriales"

Family Crenotrichaceae

Balneola - Chitinophaga - Crenothrix - Rhodothermus - Salinibacter - Terrimonas - Toxothrix

Family "Flammeovirgaceae"

Flammeovirga - Flexithrix - Perexilibacter - Persicobacter - Rapidithrix - Sediminitomix - Thermonema

Family "Flexibacteraceae"

Adhaeribacter - Aquiflexum - Arcicella - Belliella - Chimaereicella - Cyclobacterium - Cytophaga - Dyadobacter - Echinicola - Effluviibacter - Emticicia - Fabibacter - Flectobacillus - Flexibacter - Hongiella - Hymenobacter - Larkinella - Leadbetterella - Marinicola - Meniscus - Microscilla - Niastella - Persicitalea - Reichenbachiella - Rhodonellum - Roseivirga - Runella - Spirosoma - Sporocytophaga

Family "Saprospiraceae"

Aureispira - Haliscomenobacter - Lewinella - Saprospira

Family Sphingobacteriaceae

Mucilaginibacter - Olivibacter - Parapedobacter - Pedobacter - Pseudosphingobacterium - Sphingobacterium

Unclassified "Sphingobacteriales"

Niabella

Unclassified "Bacteroidetes" Flavisolibacter - Fulvivirga - Prolixibacter - Segetibacter