Class Methanobacteria

=Archaeobacteria Murray 1988 (earlier synonym)

Order Methanobacteriales

Family Methanobacteriaceae

Genus Methanobacterium (type genus)

   Methanobacterium formicicum (type species)

[Image]

   Methanobacterium aarhusense

   Methanobacterium alcaliphilum

   Methanobacterium beijingense

   Methanobacterium bryantii

[Image]

   Methanobacterium congolense

   Methanobacterium espanolae

   Methanobacterium ivanovii

   Methanobacterium oryzae

   Methanobacterium palustre

   Methanobacterium subterraneum

   Methanobacterium thermaggregans

A clonal culture of this strain does not exist

   Methanobacterium uliginosum

Genus Methanobrevibacter

   Methanobrevibacter ruminantium (type species)

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   Methanobrevibacter acididurans

   Methanobrevibacter arboriphilus

[Image]

   Methanobrevibacter curvatus

   Methanobrevibacter cuticularis

   Methanobrevibacter filiformis

   Methanobrevibacter gottschalkii

   Methanobrevibacter millerae

   Methanobrevibacter oralis

   Methanobrevibacter smithii

[Image]

   Methanobrevibacter thaueri

   Methanobrevibacter woesei

   Methanobrevibacter wolinii

Genus Methanosphaera

   Methanosphaera stadtmanae (type species)

[Image]

   Methanosphaera cuniculi

Genus Methanothermobacter

   Methanothermobacter thermautotrophicus (type species)

=Methanobacterium thermoalcaliphilum =Methanobacterium thermoformicicum [Image]

   Methanothermobacter defluvii

   Methanothermobacter marburgensis

   Methanothermobacter thermoflexus

   Methanothermobacter thermophilus

   Methanothermobacter wolfeii

Family Methanothermaceae

Genus Methanothermus (type genus)

   Methanothermus fervidus (type species)

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   Methanothermus sociabilis

Genera not assigned to a family

Genus Methanolinea

   Methanolinea tarda (type species)

Class Methanococci

=Methanothermea Cavalier-Smith 2002 (earlier synonym)

Order Methanococcales

Family Methanococcaceae

Genus Methanococcus (type genus)

   Methanococcus vannielii (type species)

[Image]

   Methanococcus aeolicus

   Methanococcus maripaludis

=M. deltae. [Image]

   Methanococcus voltae

[Image]

Genus Methanothermococcus

   Methanothermococcus thermolithotrophicus (type species)

[Image]

   Methanothermococcus okinawensis

Family Methanocaldococcaceae

Genus Methanocaldococcus (type genus)

   Methanocaldoccocus jannaschii (type species)

   Methanocaldoccocus fervens

   Methanocaldoccocus indicus

   Methanocaldoccocus infernus

   Methanocaldoccocus vulcanius

Genus Methanotorris

   Methanotorris igneus (type species)

   Methanotorris formicicus

Order Methanomicrobiales

Family Methanomicrobiaceae

Genus Methanomicrobium (type genus)

   Methanomicrobium mobile (type species)

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Genus Methanoculleus

   Methanoculleus bourgensis (type species)

=M. olentangyi =M. oldenburgensis

   Methanoculleus chikugoensis

   Methanoculleus marisnigri

[Image]

   Methanoculleus palmolei

   Methanoculleus thermophilus

=Methanogenium frittonii

   Methanoculleus submarinus

Genus Methanofollis

   Methanofollis tationis (type species)

   Methanofollis aquaemaris

   Methanofollis formosanus

   Methanofollis liminatans

Genus Methanogenium

   Methanogenium cariaci (type species)

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   Methanogenium frigidum

   Methanogenium marinum

   Methanogenium organophilum

Genus Methanolacinia

   Methanolacinia paynteri (type species)

Family Methanoplanaceae

Genus Methanoplanus (type genus)

   Methanoplanus limicola (type species)

[Image]

   Methanoplanus endosymbiosus

   Methanoplanus petrolearius

Family Methanocorpusculaceae

Genus Methanocorpusculum

   Methanocorpusculum parvum (type species)

=M. aggregans

   Methanocorpusculum bavaricum

   Methanocorpusculum labreanum

   Methanocorpusculum sinense

Genus Methanocalculus

The placement of this genus is under study

   Methanocalculus halotolerans (type species)

   Methanocalculus chunghsingensis

   Methanocalculus pumilus

   Methanocalculus taiwanensis

Family Methanospirillaceae

Genus Methanospirillum (type genus)

   Methanospirillum hungatei (type species)

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Order Methanosarcinales

Family Methanosarcinaceae

Genus Methanosarcina (type genus)

   Methanosarcina barkeri (type species)

[Image]

   Methanosarcina acetivorans

   Methanosarcina baltica

   Methanosarcina lacustris

   Methanosarcina mazei

=M. frisia [Image]

   Methanosarcina semesiae

   Methanosarcina siciliae

   Methanosarcina thermophila

[Image]

   Methanosarcina vacuolata

Genus Methanococcoides

   Methanococcoides methylutens (type species)

   Methanococcoides alaskense

   Methanococcoides burtonii

Genus Methanohalobium

   Methanohalobium evestigatum (type species)

Genus Methanohalophilus

   Methanohalophilus mahii (type species)

   Methanohalophilus halophilus

   Methanohalophilus portucalensis

Genus Methanolobus

   Methanolobus tindarius (type species)

[Image]

   Methanolobus bombayensis

   Methanolobus oregonensis

   Methanolobus taylorii

   Methanolobus vulcani

Genus Methanosalsum

   Methanosalsum zhilinae (type species)

Genus Methanomethylovorans

   Methanomethylovorans hollandica (type species)

   Methanomethylovorans thermophila

Genus Methanimicrococcus

   Methanimicrococcus blatticola (type species)

Family Methanosaetaceae

Genus Methanosaeta (type genus)

   Methanosaeta concilii (type species)

[Image]

   Methanosaeta harundinacea

   'Methanosaeta thermophila'

Name is the subject of a pending Request for an Opinion and should not be regarded as validly published

Family Methermicoccaceae

Genus Methermicoccus (type genus)

   Methermicoccus shengliensis (type species)

Order Methanocellales

Family Methanocellaceae

Genus Methanocella (type genus)

   Methanocella paludicola (type species)

Class Methanopyri

Order Methanopyrales

Family Methanopyraceae

Genus Methanopyrus (type genus)

   Methanopyrus kandleri (type species)