Acidianus Segerer et al. 1986 emend. Plumb et al. 2007 Dataset NCBI Taxonomy Classification kingdom Thermoproteati phylum Thermoproteota class Thermoprotei order Sulfolobales family Sulfolobaceae genus Acidianus Name Homonyms Acidianus Acidianus Segerer et al. 1986 emend. Plumb et al. 2007