Methanospirillum (Ferry, Smith & Wolfe, 1984) Dataset World Register of Marine Species Rank GENUS Classification kingdom Archaea phylum Euryarchaeota class Methanomicrobia order Methanomicrobiales family Methanospirillaceae genus Methanospirillum Name Homonyms Methanospirillum (Ferry, Smith & Wolfe, 1984)