Methanobacterium bryantii Dataset NCBI Taxonomy Rank SPECIES Classification phylum Euryarchaeota class Methanobacteria order Methanobacteriales family Methanobacteriaceae genus Methanobacterium species Methanobacterium bryantii Name Synonyms Methanobacterium bryantii Balch and Wolfe 1981 emend. Judicial Commission 1992 Homonyms Methanobacterium bryantii Methanobacterium bryantii Balch and Wolfe 1981 emend. Judicial Commission 1992