the root (no rank)
Bacteria (domain)
Firmicutes (phylum)
Bacilli (class)
Bacillales (order)
Geobacillus (genus)
[hide inferior taxa]
Geobacillus kaustophilus (species)
Geobacillus sp. (species)
Geobacillus stearothermophilus (species)
Geobacillus thermodenitrificans (species)
Geobacillus thermoglucosidasius (species)
Geobacillus thermoleovorans (species)
Geobacillus toebii (species)