Methanogenium thermophilicum Rivard & Smith, 1982 Dataset Prokaryotic Nomenclature Up-to-Date (PNU) Rank SPECIES Published in Int. J. Syst. Bacteriol. 32::435 Classification genus Methanoculleus species Methanoculleus thermophilus Name Homonyms Methanogenium thermophilicum Rivard & Smith, 1982