Related how?

Biota (Life)
Prokaryotes (Prokaryota)
Archaea (Archaebacteria)
Euryarchaeota
Methanobacteria
Methanobacteriales
Methanothermaceae

Methanothermus (6823609)

Children (3 direct children, 3 direct and indirect children):

Methanothermus fervidus
M. fervidus

Methanothermus sociabilis
M. sociabilis

Methanothermus jannaschii