Lactobacillus bulgaricus Dataset NCBI Taxonomy Classification phylum Bacillota class Bacilli order Lactobacillales family Lactobacillaceae genus Lactobacillus species Lactobacillus delbrueckii Name Homonyms Lactobacillus bulgaricus Lactobacillus bulgaricus (Orla-Jensen 1919) Rogosa and Hansen 1971 (Approved Lists 1980)