Methanospirillum Ferry et al. 1974 (Approved Lists 1980) emend. Zhou et al. 2014 Dataset NCBI Taxonomy Classification phylum Euryarchaeota class Methanomicrobia order Methanomicrobiales family Methanospirillaceae genus Methanospirillum Name Homonyms Methanospirillum Methanospirillum Ferry et al. 1974 (Approved Lists 1980) emend. Zhou et al. 2014 Methanospirillum Ferry et al. 1974 (Approved Lists 1980) emend. Iino et al. 2010