"Actinomyces bifidus" (Tissier 1900) Nannizzi 1934 Dataset NCBI Taxonomy Classification phylum Actinomycetota class Actinomycetes order Bifidobacteriales family Bifidobacteriaceae genus Bifidobacterium species Bifidobacterium bifidum Name Homonyms "Actinomyces bifidus" (Tissier 1900) Nannizzi 1934 Actinomyces bifidus