Methanospirillum psychrodurum Zhou et al. 2014 Dataset NCBI Taxonomy Classification phylum Euryarchaeota class Methanomicrobia order Methanomicrobiales family Methanospirillaceae genus Methanospirillum species Methanospirillum psychrodurum Name Homonyms Methanospirillum psychrodurum Methanospirillum psychrodurum Zhou et al. 2014