"Bacterium equi" Weldin and Levine 1923 Dataset NCBI Taxonomy Classification phylum Pseudomonadota class Gammaproteobacteria order Pasteurellales family Pasteurellaceae genus Actinobacillus species Actinobacillus equuli Name Homonyms "Bacterium equi" Weldin and Levine 1923 Bacterium equi