Methanobacterium petrolearium Mori and Harayama 2011 Dataset NCBI Taxonomy Classification phylum Euryarchaeota class Methanobacteria order Methanobacteriales family Methanobacteriaceae genus Methanobacterium species Methanobacterium petrolearium Name Homonyms Methanobacterium petrolearium Methanobacterium petrolearium Mori and Harayama 2011