"Bacillus pulvifaciens" Katznelson 1950 Dataset NCBI Taxonomy Classification phylum Bacillota class Bacilli order Bacillales family Paenibacillaceae genus Paenibacillus species Paenibacillus larvae Name Homonyms Bacillus pulvifaciens group II Bacillus pulvifaciens "Bacillus pulvifaciens" Katznelson 1950 Bacillus pulvifaciens (ex Katznelson 1950) Nakamura 1984