Nitrospira Watson et al. 1986 Dataset NCBI Taxonomy Classification phylum Nitrospirota class Nitrospiria order Nitrospirales family Nitrospiraceae genus Nitrospira Name Homonyms Nitrospira Nitrospira Watson et al. 1986 Nitrospira "Nitrospira" Garrity and Holt 2001