Methanospirillum psychrodurum Zhou et al., 2014 Dataset Prokaryotic Nomenclature Up-to-Date (PNU) Rank SPECIES Published in Int. J. Syst. Evol. Microbiol. 64::641 Classification genus Methanospirillum species Methanospirillum psychrodurum Name Homonyms Methanospirillum psychrodurum Zhou et al., 2014