Megasphaera Rogosa 1971 (Approved Lists 1980) emend. Marchandin et al. 2003 Dataset NCBI Taxonomy Classification phylum Bacillota class Negativicutes order Veillonellales family Veillonellaceae genus Megasphaera Name Homonyms Megasphaera Megasphaera Rogosa 1971 (Approved Lists 1980) Megasphaera Rogosa 1971 (Approved Lists 1980) emend. Marchandin et al. 2003