"Methanolobus psychrophilus" Zhang et al. 2008 Dataset NCBI Taxonomy Classification phylum Euryarchaeota class Methanomicrobia order Methanosarcinales family Methanosarcinaceae genus Methanolobus species Methanolobus psychrophilus Name Homonyms Methanolobus psychrophilus "Methanolobus psychrophilus" Zhang et al. 2008