Between brackets is the number of accepted species
1 Click on "-" to collapse/hide all child taxa
2 Shows the number of accepted species within the taxon
3 The last expanded taxon is highlighted
4 Click on "+" to expand/show all child taxa
5 Click to see the taxon details page
- Biota
- Kingdom Animalia
- Kingdom Archaea
- Kingdom Bacteria
- Phylum Acidobacteria
- Phylum Actinobacteria
- Phylum Aquificae
- Phylum Armatimonadetes
- Phylum Bacteria (awaiting allocation)
- Phylum Bacteria incertae sedis
- Phylum Bacteroidetes
- Class Bacteroidia
- Order Bacteroidales
- Family Bacteroidaceae Pribram, 1933
- Genus Acetofilamentum Dietrich et al., 1989
- Genus Acetomicrobium Soutschek et al., 1985
- Genus Acetothermus Dietrich et al., 1988
- Genus Anaerorhabdus Shah & Collins, 1986
- Genus Bacteriodes accepted as Bacteroides Castellani & Chalmers, 1919 (Approved Lists, 1980) emend. Shah & Collins, 1989
- Genus Bacteroides Castellani & Chalmers, 1919 (Approved Lists, 1980) emend. Shah & Collins, 1989
- Species Bacteroides acidifaciens Miyamoto & Itoh, 2000
- Species Bacteroides aerofaciens Eggerth, 1935 accepted as Collinsella aerofaciens (Eggerth 1935) Kageyama et al., 1999
- Species Bacteroides aerofaciens Eggerth, 1935 accepted as Eubacterium aerofaciens (Eggerth 1935) Prévot, 1938
- Species Bacteroides amylophilus Hamlin & Hungate, 1956
- Species Bacteroides asaccharolyticus (Holdeman & Moore 1970) Finegold & Barnes, 1977
- Species Bacteroides asaccharolyticus (Holdeman & Moore, 1970) Finegold & Barnes, 1977 (Approved Lists, 1980) accepted as Porphyromonas asaccharolytica (Holdeman & Moore 1970) Shah & Collins, 1988
- Species Bacteroides avidus Eggerth, 1935 accepted as Propionibacterium avidum (Eggerth 1935) Moore & Holdeman, 1969
- Species Bacteroides bifidus (Tissier, 1900), Castellani & Chalmers, 1919 accepted as Bifidobacterium bifidum (Tissier 1900) Orla-Jensen, 1924
- Species Bacteroides biformis Eggerth, 1935 accepted as Eubacterium biforme (Eggerth 1935) Prévot, 1938
- Species Bacteroides bivius Holdeman & Johnson, 1977
- Species Bacteroides buccae Holdeman et al., 1982 accepted as Prevotella buccae (Holdeman et al. 1982) Shah & Collins, 1990
- Species Bacteroides buccae Holdeman et al., 1982
- Species Bacteroides buccalis Shah & Collins, 1982
- Species Bacteroides buccalis Shah & Collins, 1982 accepted as Prevotella buccalis (Shah & Collins 1982) Shah & Collins, 1990
- Species Bacteroides caccae Johnson et al., 1986
- Species Bacteroides capillosus (Tissier 1908) Kelly, 1957
- Species Bacteroides capillus Kornman & Holt, 1982
- Species Bacteroides catenaformis Eggerth, 1935 accepted as Lactobacillus catenaformis corrig. (Eggerth, 1935) Moore & Holdeman, 1970
- Species Bacteroides cellulosolvens Murray et al., 1984
- Species Bacteroides clostridiiformis (Burri & Ankersmit, 1906) Holdeman & Moore, 1970 accepted as Clostridium clostridioforme corrig. (Burri & Ankersmit, 1906) Kaneuchi et al., 1976
- Species Bacteroides coagulans Eggerth & Gagnon, 1933
- Species Bacteroides corporis Johnson & Holdeman, 1983
- Species Bacteroides corporis Johnson & Holdeman, 1983 accepted as Prevotella corporis (Johnson & Holdeman 1983) Shah & Collins, 1990
- Species Bacteroides corrodens Eiken, 1958 accepted as Eikenella corrodens (Eiken 1958) Jackson & Goodman, 1972
- Species Bacteroides cylindroides (Rocchi, 1908) Kelly, 1957 accepted as Eubacterium cylindroides (Rocchi 1908) Holdeman & Moore, 1970
- Species Bacteroides denticola Shah & Collins, 1982 emend. Holdeman & Johnson, 1982 accepted as Prevotella denticola (Shah & Collins 1982) Shah & Collins, 1990
- Species Bacteroides denticola Shah & Collins, 1982
- Species Bacteroides disiens Holdeman & Johnson, 1977
- Species Bacteroides distasonis Eggerth & Gagnon, 1933
- Species Bacteroides eggerthii Holdeman & Moore, 1974
- Species Bacteroides endodontalis van Steenbergen et al., 1984
- Species Bacteroides endodontalis van Steenbergen et al., 1984 accepted as Porphyromonas endodontalis (van Steenbergen et al. 1984) Shah & Collins, 1988
- Species Bacteroides forsythus Tanner et al., 1986
- Species Bacteroides forsythus Tanner et al., 1986 accepted as Tannerella forsythensis corrig. (Tanner et al., 1986) Sakamoto et al., 2002
- Species Bacteroides fragilis (Veillon & Zuber, 1898) Castellani & Chalmers, 1919
- Species Bacteroides freundii Hauduroy et al., 1937 accepted as Fusobacterium mortiferum (Harris 1901) Moore & Holdeman, 1970
- Species Bacteroides furcosus (Veillon & Zuber, 1898) Hauduroy et al., 1937
- Species Bacteroides galacturonicus Jensen & Canale-Parola, 1987
- Species Bacteroides gingivalis Coykendall et al., 1980
- Species Bacteroides gingivalis Coykendall et al., 1980 accepted as Porphyromonas gingivalis (Coykendall et al. 1980) Shah & Collins, 1988
- Species Bacteroides gracilis Tanner et al., 1981 accepted as Campylobacter gracilis (Tanner et al. 1981) Vandamme et al., 1995
- Species Bacteroides gracilis Tanner et al., 1981
- Species Bacteroides helcogenes Benno et al., 1983
- Species Bacteroides heparinolyticus Okuda et al., 1985
- Species Bacteroides heparinolyticus Okuda et al., 1985 accepted as Prevotella heparinolytica (Okuda et al. 1985) Shah & Collins, 1990
- Species Bacteroides hypermegas Harrison & Hansen, 1963
- Species Bacteroides inaequalis Eggerth & Gagnon, 1933 accepted as Bacteroides fragilis (Veillon & Zuber, 1898) Castellani & Chalmers, 1919
- Species Bacteroides incommunis Eggerth & Gagnon, 1933 accepted as Bacteroides fragilis (Veillon & Zuber, 1898) Castellani & Chalmers, 1919
- Species Bacteroides intermedius (Holdeman & Moore 1970) Johnson & Holdeman, 1983
- Species Bacteroides lentus Eggerth, 1935 accepted as Eubacterium lentum (Eggerth 1935) Prévot, 1938
- Species Bacteroides lentus Eggerth, 1935 accepted as Eggerthella lenta (Eggerth 1935) Kageyama et al., 1999
- Species Bacteroides levii (ex Holdeman et al. 1977) Johnson & Holdeman, 1983
- Species Bacteroides levii (ex Holdeman et al., 1977) Johnson & Holdeman, 1983 accepted as Porphyromonas levii (Johnson & Holdeman 1983) Shah et al., 1995
- Species Bacteroides limosus Eggerth, 1935 accepted as Eubacterium limosum (Eggerth 1935) Prévot, 1938
- Species Bacteroides loescheii Holdeman & Johnson, 1982
- Species Bacteroides loescheii Holdeman & Johnson, 1982 accepted as Prevotella loescheii (Holdeman & Johnson 1982) Shah & Collins, 1990
- Species Bacteroides macacae (Slots & Genco 1980) Coykendall et al., 1980
- Species Bacteroides macacae (Slots & Genco, 1980) Coykendall et al., 1980 accepted as Porphyromonas macacae (Slots & Genco 1980) Love, 1995
- Species Bacteroides melaninogenicus (Oliver & Wherry 1921) Roy & Kelly, 1939
- Species Bacteroides melaninogenicus (Oliver & Wherry, 1921) Roy & Kelly, 1939 (Approved Lists, 1980) accepted as Prevotella melaninogenica (Oliver & Wherry 1921) Shah & Collins, 1990
- Species Bacteroides merdae Johnson et al., 1986
- Species Bacteroides microfusus Kaneuchi & Mitsuoka, 1978
- Species Bacteroides minutum Hauduroy et al., 1937 accepted as Atopobium minutum (Hauduroy et al. 1937) Collins & Wallbanks, 1993
- Species Bacteroides minutum Hauduroy et al., 1937 accepted as Lactobacillus minutus (Hauduroy et al. 1937) Moore & Holdeman, 1972
- Species Bacteroides multiacidus Mitsuoka et al., 1974
- Species Bacteroides necrophorus (Flügge, 1886) Beerens & Tahon-Castel, 1965 accepted as Fusobacterium necrophorum (Flügge, 1886) Moore & Holdeman, 1969
- Species Bacteroides nodosus (Beveridge, 1941) Mraz, 1963 (Approved Lists, 1980) accepted as Dichelobacter nodosus (Beveridge 1941) Dewhirst et al., 1990
- Species Bacteroides nodosus (Beveridge 1941) Mraz, 1963
- Species Bacteroides ochraceus (Prévot et al., 1956) Holdeman & Moore, 1972
- Species Bacteroides ochraceus (Prévot et al., 1956) Holdeman & Moore, 1972 (Approved Lists, 1980) accepted as Capnocytophaga ochracea (Prévot et al., 1956) Leadbetter et al., 1982
- Species Bacteroides oralis Loesche et al., 1964
- Species Bacteroides oris Holdeman et al., 1982
- Species Bacteroides oris Holdeman et al., 1982 accepted as Prevotella oris (Holdeman et al. 1982) Shah & Collins, 1990
- Species Bacteroides oulorum Shah et al., 1985 accepted as Prevotella oulorum corrig. (Shah et al., 1985) Shah & Collins, 1990
- Species Bacteroides oulorum Shah et al., 1985
- Species Bacteroides ovatus Eggerth & Gagnon, 1933
- Species Bacteroides pectinophilus Jensen & Canale-Parola, 1987
- Species Bacteroides pentosaceus Shah & Collins, 1982
- Species Bacteroides perfoetens (Tissier, 1905) Hauduroy et al., 1937 accepted as Fusobacterium perfoetens (Tissier 1905) Moore & Holdeman, 1973
- Species Bacteroides pneumosintes (Olitsky & Gates 1921) Holdeman & Moore, 1970
- Species Bacteroides pneumosintes (Olitsky & Gates, 1921) Holdeman & Moore, 1970 (Approved Lists, 1980) accepted as Dialister pneumosintes (Olitsky & Gates 1921) Moore & Moore, 1994
- Species Bacteroides polypragmatus Patel & Breuil, 1982
- Species Bacteroides praeacutus (Tissier 1908) Holdeman & Moore, 1970
- Species Bacteroides praeacutus (Tissier, 1908) Holdeman & Moore, 1970 (Approved Lists, 1980) accepted as Tissierella praeacuta (Tissier 1908) Collins & Shah, 1986
- Species Bacteroides praussnitzii Hauduroy et al., 1937 accepted as Faecalibacterium prausnitzii (Hauduroy et al., 1937) Duncan et al., 2002
- Species Bacteroides praussnitzii Hauduroy et al., 1937 accepted as Fusobacterium prausnitzii (Hauduroy et al. 1937) Moore & Holdeman, 1970
- Species Bacteroides putredinis (Weinberg et al., 1937) Kelly, 1957 (Approved Lists, 1980) accepted as Alistipes putredinis (Weinberg et al., 1937) Rautio et al., 2003
- Species Bacteroides putredinis (Weinberg et al. 1937) Kelly, 1957
- Species Bacteroides pyogenes Benno et al., 1983
- Species Bacteroides rectalis Hauduroy et al., 1937 accepted as Eubacterium rectale (Hauduroy et al. 1937) Prévot, 1938
- Species Bacteroides ruminicola Bryant et al., 1958
- Species Bacteroides russii Hauduroy et al., 1937 accepted as Fusobacterium russii (Hauduroy et al. 1937) Moore & Holdeman, 1970
- Species Bacteroides salivosus Love et al., 1987 accepted as Porphyromonas salivosa (Love et al. 1987) Love et al., 1992
- Species Bacteroides salivosus Love et al., 1987
- Species Bacteroides splanchnicus Werner et al., 1975
- Species Bacteroides stercoris Johnson et al., 1986
- Species Bacteroides succinogenes Hungate, 1950
- Species Bacteroides suis Benno et al., 1983
- Species Bacteroides symbiosus Stevens, 1956 accepted as Clostridium symbiosum (Stevens 1956) Kaneuchi et al., 1976
- Species Bacteroides tectus corrig. Love et al., 1986
- Species Bacteroides tenuis Bergey et al., 1923 accepted as Eubacterium tenue (Bergey et al. 1923) Holdeman & Moore, 1970
- Species Bacteroides termitidis (Sebald 1962) Holdeman & Moore, 1970
- Species Bacteroides termitidis (Sebald, 1962) Holdeman & Moore, 1970 (Approved Lists, 1980) accepted as Sebaldella termitidis (Sebald 1962) Collins & Shah, 1986
- Species Bacteroides thetaiotaomicron (Distaso 1912) Castellani & Chalmers, 1919
- Species Bacteroides tortuosus (Debono, 1912) Bergey et al., 1923 accepted as Eubacterium tortuosum (Debono 1912) Prévot, 1938
- Species Bacteroides uncatus Eggerth & Gagnon, 1933 accepted as Bacteroides fragilis (Veillon & Zuber, 1898) Castellani & Chalmers, 1919
- Species Bacteroides uniformis Eggerth & Gagnon, 1933
- Species Bacteroides ureolyticus Jackson & Goodman, 1978
- Species Bacteroides varius Eggerth & Gagnon, 1933 accepted as Fusobacterium varium (Eggerth & Gagnon 1933) Moore & Holdeman, 1969
- Species Bacteroides ventriosus (Tissier, 1908) Eggerth, 1935 accepted as Eubacterium ventriosum (Tissier 1908) Prévot, 1938
- Species Bacteroides veroralis Watabe et al., 1983
- Species Bacteroides veroralis Watabe et al., 1983 accepted as Prevotella veroralis (Watabe et al. 1983) Shah & Collins, 1990
- Species Bacteroides vulgatus Eggerth & Gagnon, 1933
- Species Bacteroides xylanolyticus Scholten-Koerselman et al., 1988
- Species Bacteroides zoogleoformans corrig. (Weinberg et al., 1937) Cato et al., 1982
- Species Bacteroides zoogleoformans (Weinberg et al., 1937) Cato et al., 1982 accepted as Prevotella zoogleoformans (Weinberg et al. 1937) Shah & Collins, 1990
- Genus Ristella Prévot, 1938 accepted as Bacteroides Castellani & Chalmers, 1919 (Approved Lists, 1980) emend. Shah & Collins, 1989
- Genus Sphaerocillus
- Genus Sphaerophorus Prévot, 1938
- Family Bacteroidales incertae sedis
- Family Balneicellaceae Fadhlaoui et al., 2016
- Family Lentimicrobiaceae Sun et al., 2016
- Family Odoribacteraceae Munoz et al., 2016
- Family Porphyromonadaceae Krieg, 2012
- Family Prevotellaceae Krieg, 2012
- Family Rikenellaceae Krieg et al., 2012
- Order Marinilabiliales
- Class Chitinophagia
- Class Cytophagia
- Class Flavobacteria accepted as Flavobacteriia
- Class Flavobacteriia
- Class Saprospiria
- Class Sphingobacteria accepted as Sphingobacteriia
- Class Sphingobacteriia
- Family Bacteroidetes incertae sedis
- Phylum Balneolaeota
- Phylum Caldiserica
- Phylum Calditrichaeota
- Phylum Chlamydiae
- Phylum Chlorobi
- Phylum Chloroflexi
- Phylum Chrysiogenetes
- Phylum Cyanobacteria
- Phylum Deferribacteres
- Phylum Deinococcus-Thermus
- Phylum Dictyoglomi
- Phylum Elusimicrobia
- Phylum Fibrobacteres
- Phylum Firmicutes
- Phylum Fusobacteria
- Phylum Gemmatimonadetes
- Phylum Kiritimatiellaeota
- Phylum Lentisphaerae
- Phylum Myxobacteria accepted as Proteobacteria
- Phylum Nitrospira
- Phylum Omnibacteria accepted as Bacteria
- Phylum Planctomycetes
- Phylum Prochlorophyta accepted as Cyanobacteria
- Phylum Proteobacteria
- Phylum Rhodothermaeota
- Phylum Schizophyta accepted as Bacteria
- Phylum Spirochaetae
- Phylum Spirochaetes accepted as Spirochaetae
- Phylum Synergistetes
- Phylum Tenericutes
- Phylum Thermodesulfobacteria
- Phylum Thermomicrobia accepted as Chloroflexi
- Phylum Thermotogae
- Phylum Verrucomicrobia
- Class Myxobacteria (awaiting allocation) accepted as Bacteria
- Genus Animikiea E.S. Barghoorn in E.S. Barghoorn & S.A. Tyler, 1965 †
- Genus Coleobacter J.H. Oehler, 1977 †
- Genus Concentrisphaera G. Burmann, 1998 †
- Genus Crassosphaera G. Burmann, 1998 †
- Genus Eoastrion E.S. Barghoorn in Barghoorn & Tyler, 1965 †
- Genus Eobacterium E.S. Barghoorn & J.W. Schopf, 1966
- Genus Fabiformis V.G. Pyatiletov, 1988 †
- Genus Favososphaera G. Burmann, 1972 †
- Genus Ferrimonilis J.H. Oehler, 1977 †
- Genus Globus G. Vidal in Moczydłowska & Vidal, 1988 †
- Genus Gunflintia E.S. Barghoorn in Barghoorn & Tyler, 1965 †
- Genus Kakabekia E.S. Barghoorn in Barghoorn & Tyler, 1965 †
- Genus Leptoteichos A.H. Knoll, E.S. Barghoorn & S.M. Awramik, 1978 †
- Genus Microagglomeratus S.M. Awramik in Allison & Awramik, 1989 †
- Genus Phaeostrepte Skuja ex T. Willén, 1992
- Genus Ramacia J.H. Oehler, 1977 †
- Genus Rhicnonema H.J. Hoffmann, 1976 †
- Genus Sibiricum Stanevich, 2004 †
- Genus Tenuisphaera G. Burmann, 1998 †
- Kingdom Chromista
- Kingdom Fungi
- Kingdom Plantae
- Kingdom Protista accepted as Protozoa
- Kingdom Protozoa
- Kingdom Viruses
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