Nitrosoarchaeum limnia SFB1 Dataset NCBI Taxonomy Classification phylum Nitrososphaerota class Nitrososphaeria order Nitrosopumilales family Nitrosopumilaceae genus Nitrosarchaeum species Candidatus Nitrosarchaeum limnium Name Homonyms Nitrosoarchaeum limnia SFB1 Nitrosoarchaeum limnia BG20