Methanocalculus pumilus Mori et al. 2000 Dataset NCBI Taxonomy Classification phylum Euryarchaeota class Methanomicrobia order Methanomicrobiales family Methanocalculaceae genus Methanocalculus species Methanocalculus pumilus Name Homonyms Methanocalculus pumilus Methanocalculus pumilus Mori et al. 2000