Methanospirillum Ferry et al., 1974 emend. Iino et al., 2010 Dataset Catalogue of Life Rank GENUS Classification kingdom Archaea phylum Euryarchaeota class Methanomicrobia order Methanomicrobiales family Methanospirillaceae genus Methanospirillum Name Homonyms Methanospirillum Ferry et al., 1974 emend. Iino et al., 2010