Table 1. Classification and general features of ‘T. terrenum’ strain YNP1^T according to the MIGS recommendations [18].

MIGS ID	Property	Term	Evidence code
	Current classification	Domain Bacteria	TAS [19]
		Phylum Chloroflexi	TAS [20-23]
		Class Incertae sedis	NAS
		Order Incertae sedis	NAS
		Family Incertae sedis	NAS
		Genus ‘Thermobaculum’	TAS [1]
		Species ‘Thermobaculum terrenum’	TAS [1]
	Type strain	YNP1	TAS [1]
	Gram stain	positive	TAS [1]
	Cell shape	short rods (1-1.5 × 2-3 µm)	TAS [1]
	Motility	non-motile	TAS [1]
	Sporulation	none	TAS [1]
	Temperature range	65°C-92°C	TAS [1]
	Optimum temperature	67°C	TAS [1]
	Salinity	0.5% NaCl	TAS [1]
MIGS-22	Oxygen requirement	obligate aerobic	TAS [1]
	Carbon source	glucose, fructose, ribose, sorbitol, sucrose,     xylose, xylitol	TAS [1]
	Energy source	heterotrophic	TAS [1]
MIGS-6	Habitat	thermal soil	TAS [1]
MIGS-15	Biotic relationship	free living	NAS
MIGS-14	Pathogenicity	none	NAS
	Biosafety level	1	TAS [24]
	Isolation	65°C hot extreme thermal soil in small depression site	TAS [1]
MIGS-4	Geographic location	Near Rabbit Creek and Firehole River     in Yellowstone National Park, Wyoming, USA	TAS [1]
MIGS-5	Sample collection time	June 1998	NAS
MIGS-4.1	Latitude	44.394	NAS
MIGS-4.2	Longitude	-110.568	NAS
MIGS-4.3	Depth	0 m, soil surface	TAS [1]
MIGS-4.4	Altitude	not reported

Evidence codes - IDA: Inferred from Direct Assay (first time in publication); 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). These evidence codes are from of the Gene Ontology project [25]. If the evidence code is IDA, then the property was directly observed by one of the authors or an expert mentioned in the acknowledgements