"Sphaerophorus hypermegas" (Harrison and Hansen 1963) Prevot 1966 Dataset NCBI Taxonomy Classification phylum Bacillota class Negativicutes order Selenomonadales family Selenomonadaceae genus Megamonas species Megamonas hypermegale Name Homonyms Sphaerophorus hypermegas "Sphaerophorus hypermegas" (Harrison and Hansen 1963) Prevot 1966