Natura - nature actualia - actual entities Mundus Plinius - physical world naturalia - natural bodies Clade Biota Wagner 2004 [Wiemann, de Queiroz, Rowe, Planavsky, Anderson, Gogarten, Turner & Gauthier 2020] Clade neomura Cavalier-Smith, 1987 Domain Archaea Woese et al. 1990 [paraphyletic] Superphylum TACK Guy and Ettema 2011 Phylum Crenarchaeota Garrity and Holt 2001 Class Thermoprotei Reysenbach 2002 Order Sulfolobales Stetter 1989 [monotypic] Family Sulfolobaceaeᵀ Stetter 1989 Genus Sulfolobusᵀ Brock et al. 1972 (Approved Lists 1980) ["Sulfolobus ambivalens"] see Acidianus ambivalens (Zillig and Böck 1987) Fuchs et al. 1996 [Sulfolobus brierleyi Zillig et al. 1980] see Acidianus brierleyi (Zillig et al. 1980) Segerer et al. 1986 [Sulfolobus hakonensis Takayanagi et al. 1996] see Metallosphaera hakonensis (Takayanagi et al. 1996) Kurosawa et al. 2003 ["Sulfolobus islandicus"] ["Sulfolobus neozealandicus" Zillig et al. 1998] ["Sulfolobus thuringiensis"] 1 Sulfolobus acidocaldariusᵀ Brock et al. 1972 (Approved Lists 1980) 2 Sulfolobus metallicus Huber and Stetter 1992 3 Sulfolobus shibatae Grogan et al. 1991 4 Sulfolobus solfataricus Zillig et al. 1980 5 Sulfolobus tokodaii Suzuki et al. 2002 6 Sulfolobus yangmingensis Jan et al. 1999