"Nitrospina watsonii" Spieck et al. 2014 Dataset NCBI Taxonomy Classification phylum Nitrospinota class Nitrospinia order Nitrospinales family Nitrospinaceae genus Nitrospina species Nitrospina watsonii Name Homonyms Nitrospina watsonii "Nitrospina watsonii" Spieck et al. 2014