"Organism LC" Elsden and Lewis 1953 Dataset NCBI Taxonomy Classification phylum Bacillota class Negativicutes order Veillonellales family Veillonellaceae genus Megasphaera species Megasphaera elsdenii Name Homonyms Organism LC "Organism LC" Elsden and Lewis 1953 Organism N 1 "Organism N 1" Morgan 1906 Organism K "Organism K" Beveridge 1938