| fusobacterium nucleatum | species | bacteria | bacteria | species | 851 |
| fusobacterium nucleatum cc53 | no rank | | | no rank | 1297579 |
| fusobacterium nucleatum subsp. animalis | subspecies | bacteria | bacteria | subspecies | 76859 |
| fusobacterium nucleatum subsp. animalis atcc 51191 | no rank | bacteria | bacteria | no rank | 997347 |
| fusobacterium nucleatum subsp. animalis chdc f324 | no rank | | | no rank | 1307429 |
| fusobacterium nucleatum subsp. animalis f0419 | no rank | bacteria | bacteria | no rank | 999414 |
| fusobacterium nucleatum subsp. fusiforme atcc 51190 | no rank | | | no rank | 1196653 |
| fusobacterium nucleatum subsp. nucleatum | subspecies | bacteria | bacteria | subspecies | 76856 |
| fusobacterium nucleatum subsp. nucleatum atcc 23726 | no rank | bacteria | bacteria | no rank | 525283 |
| fusobacterium nucleatum subsp. nucleatum atcc 25586 | no rank | bacteria | bacteria | no rank | 190304 |