"Bacterium pyosepticum viscosum equi" L tje 1921 Dataset NCBI Taxonomy Classification phylum Pseudomonadota class Gammaproteobacteria order Pasteurellales family Pasteurellaceae genus Actinobacillus species Actinobacillus equuli Name Homonyms Bacterium pyosepticum viscosum equi "Bacterium pyosepticum viscosum equi" L tje 1921