Nitrospira Garrity & Holt, 2001 Dataset Integrated Taxonomic Information System (ITIS) Rank CLASS Classification kingdom Bacteria phylum Nitrospira class Nitrospira Name Homonyms Nitrospira Garrity & Holt, 2001 Nitrospira Garrity & Holt, 2001 Nitrospira Watson et al., 1986