the root (no rank)
Bacteria (domain)
Firmicutes (phylum)
Clostridia (class)
Thermoanaerobacteriales (order)
Thermoanaerobacteriaceae (family)
Thermoanaerobacter (genus)
[hide inferior taxa]
Thermoanaerobacter brockii (species)
Thermoanaerobacter ethanolicus (species)
Thermoanaerobacter sp. (species)