Methanothermobacter marburgensis
M. marburgensis
Methanothermobacter crinale
Methanothermobacter defluvii
Methanothermobacter tenebrarum
Methanothermobacter thermautotrophicus
Methanothermobacter thermoflexus
Methanothermobacter thermophilus
Methanothermobacter wolfeii