"Frankia". NCBI taxonomy. Bethesda, MD: National Center for Biotechnology Information. Retrieved 29 December 2017. Lineage( full ) cellular organisms; Bacteria; Terrabacteria group; Actinobacteria; Actinobacteria; Frankiales; Frankiaceae
Parent's taxonomic references:
"Terrabacteria". NCBI taxonomy. Bethesda, MD: National Center for Biotechnology Information. Retrieved 15 November 2017. Lineage( full ) cellular organisms; Bacteria; Terrabacteria group