List of Archaea genera

This article lists the genera of the Archaea.

The following genus of the Archaea has not been assigned to a phylum:

• Genus Halostagnicola

This section lists the genera of Archaea within the Phylum Crenarchaeota.

Class Thermoprotei

This section lists the genera of Archaea within the Class Thermoprotei.

Order Caldisphaerales

This section lists the genera of Archaea within the Order Caldisphaerales.

Family Caldisphaeraceae

This section lists the genera of Archaea within the Family Caldisphaeraceae.

• Genus Caldisphaera

Order Cenarchaeales

This section lists the genera of Archaea within the Order Cenarchaeales.

Family Cenarchaeaceae

This section lists the genera of Archaea within the Family Cenarchaeaceae.

• Genus Cenarchaeum

Order Desulfurococcales

This section lists the genera of Archaea within the Order Desulfurococcales.

The following two genera of Desulfurococcales have not been assigned to a family:

• Genus Caldococcus
• Genus Ignisphaera

Family Desulfurococcaceae

This section lists the genera of Archaea within the Family Desulfurococcaceae.

• Genus Acidilobus
• Genus Acidococcus
• Genus Aeropyrum
• Genus Desulfurococcus
• Genus Ignicoccus
• Genus Staphylothermus
• Genus Stetteria
• Genus Sulfophobococcus
• Genus Thermodiscus
• Genus Thermosphaera

Family Pyrodictiaceae

This section lists the genera of Archaea within the Family Pyrodictiaceae.

• Genus Geogemma
• Genus Hyperthermus
• Genus Pyrodictium
• Genus Pyrolobus

Order Nitrosopumilales

This section lists the genera of Archaea within the Order Nitrosopumilales.

Family Nitrosopumilaceae

This section lists the genera of Archaea within the Family Nitrosopumilaceae.

• Genus Nitrosopumilus (candidatus)

Order Sulfolobales

This section lists the genera of Archaea within the Order Sulfolobales.

Family Sulfolobaceae

This section lists the genera of Archaea within the Family Sulfolobaceae.

• Genus Acidianus
• Genus Metallosphaera
• Genus Stygiolobus
• Genus Sulfolobus
• Genus Sulfurisphaera

Order Thermoproteales

This section lists the genera of Archaea within the Order Thermoproteales.

Family Thermofilaceae

This section lists the genera of Archaea within the Family Thermofilaceae.

• Genus Thermofilum

Family Thermoproteaceae

This section lists the genera of Archaea within the Family Thermoproteaceae.

• Genus Caldivirga
• Genus Pyrobaculum
• Genus Thermocladium
• Genus Thermoproteus
• Genus Vulcanisaeta

Phylum Euryarchaeota

This section lists the genera of Archaea within the Phylum Euryarchaeota.

The following genus of the Euryarchaeota has not been assigned to a class:

• Genus Aciduliprofundum

Class Archaeoglobi

This section lists the genera of Archaea within the Class Archaeoglobi.

Order Archaeoglobales

This section lists the genera of Archaea within the Order Archaeoglobales.

Family Archaeoglobaceae

This section lists the genera of Archaea within the Family Archaeoglobaceae.

• Genus Archaeoglobus
• Genus Ferroglobus
• Genus Geoglobus

Class Halobacteria

This section lists the genera of Archaea within the Class Halobacteria.

Order Halobacteriales

This section lists the genera of Archaea within the Order Halobacteriales.

Family Halobacteriaceae

This section lists the genera of Archaea within the Family Halobacteriaceae.

• Genus Haladaptatus
• Genus Halalkalicoccus
• Genus Haloalcalophilium
• Genus Haloarcula
• Genus Halobacterium
• Genus Halobaculum
• Genus Halobiforma
• Genus Halococcus
• Genus Haloferax
• Genus Halogeometricum
• Genus Halomicrobium
• Genus Halopiger
• Genus Haloplanus
• Genus Haloquadra
• Genus Halorhabdus
• Genus Halorubrum
• Genus Halosarcina
• Genus Halosimplex
• Genus Haloterrigena
• Genus Halovivax
• Genus Natrialba
• Genus Natrinema
• Genus Natronobacterium
• Genus Natronococcus
• Genus Natronolimnobius
• Genus Natronomonas
• Genus Natronorubrum

Class Methanobacteria

This section lists the genera of Archaea within the Class Methanobacteria.

Order Methanobacteriales

This section lists the genera of Archaea within the Order Methanobacteriales.

The following two genera of the Methanomicrobiales have not been assigned to a family:

• Genus Methanoregula (candidatus)
• Genus Methanocalculus

Family Methanobacteriaceae

This section lists the genera of Archaea within the Family Methanobacteriaceae.

• Genus Methanobacterium
• Genus Methanobrevibacter
• Genus Methanosphaera
• Genus Methanothermobacter

Family Methanothermaceae

This section lists the genera of Archaea within the Family Methanothermaceae.

• Genus Methanothermus

Class Methanococci

This section lists the genera of Archaea within the Class Methanococci.

Order Methanococcales

This section lists the genera of Archaea within the Order Methanococcales.

Family Methanocaldococcaceae

This section lists the genera of Archaea within the Family Methanocaldococcaceae.

• Genus Methanocaldococcus
• Genus Methanotorris

Family Methanococcaceae

This section lists the genera of Archaea within the Family Methanococcaceae.

• Genus Methanococcus
• Genus Methanothermococcus

Class Methanomicrobia

This section lists the genera of Archaea within the Class Methanomicrobia.

Order Methanomicrobiales

This section lists the genera of Archaea within the Order Methanomicrobiales.

Family Methanocorpusculaceae

This section lists the genera of Archaea within the Family Methanocorpusculaceae.

• Genus Methanocorpusculum

Family Methanomicrobiaceae

This section lists the genera of Archaea within the Family Methanomicrobiaceae.

• Genus Methanoculleus
• Genus Methanofollis
• Genus Methanogenium
• Genus Methanolacinia
• Genus Methanomicrobium
• Genus Methanoplanus

Family Methanospirillaceae

This section lists the genera of Archaea within the Family Methanospirillaceae.

• Genus Methanospirillum

Order Methanosarcinales

This section lists the genera of Archaea within the Order Methanosarcinales.

Family Methanosaetaceae

This section lists the genera of Archaea within the Family Methanosaetaceae.

• Genus Methanosaeta

Family Methanosarcinaceae

This section lists the genera of Archaea within the Family Methanosarcinaceae.

• Genus Methanimicrococcus
• Genus Methanococcoides
• Genus Methanohalobium
• Genus Methanohalophilus
• Genus Methanolobus
• Genus Methanomethylovorans
• Genus Methanosalsum
• Genus Methanosarcina

Class Methanopyri

This section lists the genera of Archaea within the Class Methanopyri.

Order Methanopyrales

This section lists the genera of Archaea within the Order Methanopyrales.

Family Methanopyraceae

This section lists the genera of Archaea within the Family Methanopyraceae.

• Genus Methanopyrus

Class Thermococci

This section lists the genera of Archaea within the Class Thermococci.

Order Thermococcales

This section lists the genera of Archaea within the Order Thermococcales.

Family Thermococcaceae

This section lists the genera of Archaea within the Family Thermococcaceae.

• Genus Palaeococcus
• Genus Pyrococcus
• Genus Thermococcus

Class Thermoplasmata

This section lists the genera of Archaea within the Class Thermoplasmata.

Order Thermoplasmatales

This section lists the genera of Archaea within the Order Thermoplasmatales.

Family Ferroplasmaceae

This section lists the genera of Archaea within the Family Ferroplasmaceae.

• Genus Ferroplasma

Family Picrophilaceae

This section lists the genera of Archaea within the Family Picrophilaceae.

• Genus Picrophilus

Family Thermoplasmataceae

This section lists the genera of Archaea within the Family Thermoplasmataceae.

• Genus Thermoplasma

Phylum Korarchaeota

This section lists the genera of Archaea within the Phylum Korarchaeota.

Only environmental samples of the Korarchaeota have been studied.

Phylum Nanoarchaeota

This section lists the genera of Archaea within the Phylum Nanoarchaeota.

The following genus of the Nanoarchaeota has not been assigned to a class:

• Genus Nanoarchaeum