Methanobacterium defluvii Dataset NCBI Taxonomy Classification phylum Euryarchaeota class Methanobacteria order Methanobacteriales family Methanobacteriaceae genus Methanothermobacter species Methanothermobacter defluvii Name Homonyms Methanobacterium defluvii Methanobacterium defluvii Kotelnikova et al. 1994