NC10 is a bacterial phylum with candidate status, meaning its members remain uncultured to date.

[1][2][3][4] Methylomirabilis oxyfera, a member of the NC10 phylum, is the first organism discovered to couple methane oxidation to the reduction of nitrite to dinitrogen (N2).

[1] Third, this finding opens the possibility that oxygen was available in the atmosphere prior to the evolution of oxygenic photosynthesis and the Great Oxidation Event,[5] which challenges certain aspects of modern theories regarding the evolution of early life on Earth.

[5] Members of the NC10 phylum have been detected in environments including the Brunssummerheide peatlands (Limburg, Netherlands),[7] the deep stratified Lake Zug (Central Switzerland),[8] and a paddy field with long-term fertilization (Hangzhou, China)[9] NC10 species proposed to date include Methylomirabilis oxyfera[5] and Methylomirabilis lanthanidiphila[10] "Rokubacteriales" "Ca.

M. oxygeniifera" The currently accepted taxonomy is based on the List of Prokaryotic names with Standing in Nomenclature (LPSN)[14] and National Center for Biotechnology Information (NCBI).