"Nitrososphaera viennensis" Tourna et al. 2011 Dataset NCBI Taxonomy Classification phylum Nitrososphaerota class Nitrososphaeria order Nitrososphaerales family Nitrososphaeraceae genus Nitrososphaera species Nitrososphaera viennensis Name Homonyms Nitrososphaera viennensis "Nitrososphaera viennensis" Tourna et al. 2011 Nitrososphaera viennensis Stieglmeier et al. 2014