Sulfolobus hakonensis Takayanagi et al. 1996 Universal Root Woese et al. 1990 Archaea Woese et al. 1990 Crenarchaeota (sic) Garrity and Holt 2021 Thermoproteota corrig. Garrity and Holt 2021 Thermoprotei Reysenbach 2002 Sulfolobales Stetter 1989 Sulfolobaceae Stetter 1989 Sulfolobus Brock et al. 1972 (Approved Lists 1980) Sulfolobus hakonensis Takayanagi et al. 1996 Sulfolobus Brock et al. 1972 (Approved Lists 1980) Sulfolobus tokodaii Suzuki et al. 2002 Sulfolobus shibatae Grogan et al. 1991 Sulfolobus acidocaldarius Brock et al. 1972 (Approved Lists 1980) Sulfolobus solfataricus Zillig et al. 1980 Sulfolobus tengchongensis Xiang et al. 2003 Sulfolobus yangmingensis Jan et al. 1999 Sulfolobus metallicus Huber and Stetter 1992 Sulfolobus brierleyi Zillig et al. 1980 Sulfolobus hakonensis Takayanagi et al. 1996 Metallosphaera hakonensis (Takayanagi et al. 1996) Kurosawa et al. 2003 Kurosawa N. Itoh Y.H. Itoh T. Reclassification of Sulfolobus hakonensis Takayanagi et al. 1996 as Metallosphaera hakonensis comb. nov. based on phylogenetic evidence and DNA G+C content. 2003 53 5 1607 1608 International Journal of Systematic and Evolutionary Microbiology Int J Syst Evol Microbiol 1466-5026 1466-5034 10.1099/ijs.0.02716-0 13130056 Takayanagi S. Kawasaki H. Sugimori K. Yamada T. Sugai A. Ito T. Yamasato K. Shioda M. Sulfolobus hakonensis sp. nov., a novel species of acidothermophilic archaeon. 1996 46 2 377 382 International Journal of Systematic Bacteriology Int J Syst Bacteriol 0020-7713 10.1099/00207713-46-2-377 8934897