Euryarchaeota
Scientific classification
Domain*:Archaea
Phylum:Euryarchaeota
Classes
(see text)
* Or kingdom (see discussion in Archea)

Euryarchaeota is a phylum of Archaea containing extremely halophilic organisms, methanogens and some extremely thermophilic aerobes and anaerobes.

Halobacteria
Methanobacteria
Methanococci
Methanomicrobia
Methanosarcinae
Methanopyri
Archeoglobi
Thermoplasmata
Thermococci