Phylogeny
The currently accepted taxonomy is based on the List of Prokaryotic names with Standing in Nomenclature (LPSN) and National Center for Biotechnology Information (NCBI) and the phylogeny is based on 16S rRNA-based LTP release 111 by The All-Species Living Tree Project
The Thermoanaerobacteriales as previously mentioned are polyphyletic, and consists of over six morphologically and physiologically similar clades:
- Clostridium thermoamylolyticum ♠
- Gelria
- Caldicellulosiruptor
- Desulfovirgula thermocuniculi
- Thermanaeromonas toyohensis
- Thermodesulfobiaceae
- Thermoanaerobacteraceae
- Thermoanaerobacterales Unnamed clade I
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| Tepidanaerobacter |
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?T. acetatoxydans ♠
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T. syntrophicus (type sp.)
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| Thermovenabulum |
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T. gondwanense
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T. ferriorganovorum (type sp.)
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| Thermosediminibacter |
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T. litoriperuensis
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T. oceani (type sp.)
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Fervidicola ferrireducens
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Caldanaerovirga acetigignens
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Thermovorax subterraneus
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- Thermoanaerobacterales Unnamed clade II
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| Moorella |
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?M. perchloratireducens ♠
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M. thermoacetica (type sp.)
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M. thermoautotrophica
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Syntrophaceticus schinkii
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Thermacetogenium phaeum
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| Carboxydothermus |
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C. pertinax
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C. islandicus
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C. siderophilus
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C. ferrireducens
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C. hydrogenoformans (type sp.)
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- Thermoanaerobacterales Unnamed clade III
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Mahella australiensis
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| Caldanaerobius |
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C. fijiensis (type sp.)
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C. polysaccharolyticus
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C. zeae
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Caloribacterium cisternae
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| Thermoanaerobacterium |
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?T. bryantii ♠
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?T. islandicum ♠
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T. aotearoense
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T. thermostercoris
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T. thermosaccharolyticum
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Thermohydrogenium kirishiense
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T. aciditolerans
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T. saccharolyticum
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T. thermosulfurigenes (type sp.)
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T. xylanolyticum
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Notes:
♣ International Journal of Systematic Bacteriology or International Journal of Systematic and Evolutionary Microbiology (IJSB/IJSEM) published species that are in press.
♠ Strains found at the National Center for Biotechnology Information (NCBI) but not listed in the List of Prokaryotic names with Standing in Nomenclature (LPSN).