Methanosarcina vacuolata Zhilina & Zavarzin, 1987 Dataset Prokaryotic Nomenclature Up-to-Date (PNU) Rank SPECIES Published in Int. J. Syst. Bacteriol. 37::281 Classification genus Methanosarcina species Methanosarcina vacuolata Name Homonyms Methanosarcina vacuolata Zhilina & Zavarzin, 1987