megamonas megamonas megamonas is a genus of bacillota bacteria classified within the class negativicutes. megamonas scientific classification domain: bacteria phylum: bacillota class: negativicutes order: selenomonadales family: selenomonadaceae genus: megamonasshah and collins 1983 type species megamonas hypermegalecorrig. (harrison & hansen 1963) shah & collins 1983 species m. funiformis "ca. m. gallistercoris" m. hypermegale m. rupellensis phylogeny the currently accepted taxonomy is based on the list of prokaryotic names with standing in nomenclature (lpsn) and national center for biotechnology information (ncbi) 16s rrna based ltp_01_2022 120 marker proteins based gtdb 07-rs207 m. hypermegale corrig. (harrison and hansen 1963) shah and collins 1983 m. funiformis sakon et al. 2008 m. rupellensis chevrot et al. 2008 m. funiformis (incl. megamonas rupellensis chevrot et al. 2008) "ca. m. gallistercoris" m. hypermegale