Methanomicrobium Dataset NCBI Taxonomy Rank GENUS Classification phylum Euryarchaeota class Methanomicrobia order Methanomicrobiales family Methanomicrobiaceae genus Methanomicrobium Name Synonyms Methanomicrobium Balch and Wolfe 1981 Homonyms Methanomicrobium Methanomicrobium Balch and Wolfe 1981