"Bacterium thiocyanoxidans" Happold and Key 1937 Dataset NCBI Taxonomy Classification phylum Pseudomonadota class Betaproteobacteria order Nitrosomonadales family Thiobacillaceae genus Thiobacillus species Thiobacillus thioparus Name Homonyms Bacterium thiocyanoxidans "Bacterium thiocyanoxidans" Happold and Key 1937