#Database_OTU Count Abundance Taxonomy 353857 2 0.153846 Archaea; Euryarchaeota; Thermoplasmata; E2; Methanomassiliicoccaceae; Methanomassiliicoccaceae_Group; Unclassified; otu_353857 2214064 11 0.846154 Bacteria; Proteobacteria; Deltaproteobacteria; Desulfarculales; Desulfarculaceae; Desulfatiglans; Unclassified; otu_2214064