Methanobrevibacter smithii PS Dataset NCBI Taxonomy Classification phylum Euryarchaeota class Methanobacteria order Methanobacteriales family Methanobacteriaceae genus Methanobrevibacter species Methanobrevibacter smithii Name Homonyms Methanobrevibacter smithii Methanobrevibacter smithii F1 Methanobrevibacter smithii B181 Methanobrevibacter smithii PS Methanobrevibacter smithii DSM 861 Methanobrevibacter smithii Balch and Wolfe 1981