the root (no rank)
Archaea (domain)
Crenarchaeota (phylum)
Sulfolobales (order)
Sulfolobaceae (family)
Sulfolobus (genus)
[hide inferior taxa]
Sulfolobus acidocaldarius (species)
Sulfolobus fataricus (species)
Sulfolobus islandicus (species)
Sulfolobus metallicus (species)
Sulfolobus shibatae (species)
Sulfolobus solfataricus (species)
Sulfolobus sp. (species)
Sulfolobus tengchongensis (species)
Sulfolobus tokodaii (species)