Table 1. Classification and general features of D. kuznetsovii DSM 6115 according to the MIGS recommendations [4].

MIGS ID	Property	Term	Evidence codea
	Current classification	Domain Bacteria	TAS [5]
		Phylum Firmicutes	TAS [6-8]
		Class Clostridia	TAS [9,10]
		Order Clostridiales	TAS [11,12]
		Family Peptococcaceae	TAS [11,13]
		Genus Desulfotomaculum	TAS [11,14,15]
		Species Desulfotomaculum kuznetsovii	TAS [1,16]
		Type strain 17
	Gram stain	Positive	TAS [1]
	Cell shape	Rods	TAS [1]
	Motility	peritrichous flagella	TAS [1]
	Sporulation	oval, terminal or subterminal, slightly swelling the cell.	TAS [1]
	Temperature range	50-85°C	TAS [1]
	Optimum temperature	60-65°C	TAS [1]
	Carbon source	CO2 (autotrophic) and organic substrates (heterotrophic)	TAS [1]
	Energy source	Sulfate-dependent growth and fermentative growth with pyruvate and fumarate.	TAS [1]
	Electron acceptor	Sulfate, thiosulfate and sulfite.	TAS [1]
MIGS-6	Habitat	Geothermal groundwater, sediment and hot solfataric fields.	TAS [1,17,18]
MIGS-6.3	Salinity	2-3% NaCl	TAS [1]
MIGS-22	Oxygen	Obligate anaerobes	TAS [1]
MIGS-15	Biotic relationship	Free living	TAS [1]
MIGS-14	Pathogenicity	None
MIGS-4	Geographic location	Sukhumi, Georgia	TAS [1]
MIGS-5	Sample collection time	1987 or before	TAS [1]
MIGS-4.1	Latitude	43.009	TAS [1]
MIGS-4.2	Longitude	40.989	TAS [1]
MIGS-4.3	Depth	2800-3250 m	TAS [1]

Evidence codes - TAS: Traceable Author Statement (i.e., a direct report exists in the literature); NAS: Non-traceable Author Statement (i.e., not directly observed for the living, isolated sample, but based on a generally accepted property for the species, or anecdotal evidence). Evidence codes are from the Gene Ontology project [19].