Coccobacillus pfeifferi Dataset NCBI Taxonomy Classification phylum Pseudomonadota class Gammaproteobacteria order Pasteurellales family Pasteurellaceae genus Haemophilus species Haemophilus influenzae Name Homonyms "Coccobacillus pfeifferi" Neveu-Lemaire 1921 Coccobacillus pfeifferi