Methanococcus infernus Jeanthon et al. 1998 Dataset NCBI Taxonomy Classification phylum Euryarchaeota class Methanococci order Methanococcales family Methanocaldococcaceae genus Methanocaldococcus species Methanocaldococcus infernus Name Homonyms Methanococcus infernus Methanococcus infernus Jeanthon et al. 1998