Methanosphaera Dataset NCBI Taxonomy Rank GENUS Classification kingdom Methanobacteriati phylum Methanobacteriota class Methanobacteria order Methanobacteriales family Methanobacteriaceae genus Methanosphaera Name Synonyms Methanosphaera Miller and Wolin 1985 Homonyms Methanosphaera Methanosphaera Miller and Wolin 1985