Virgibacillus arcticus Niederberger et al. 2009 Niederberger T.D. Steven B. Charvet S. Barbier B. Whyte L.G. Virgibacillus arcticus sp. nov., a moderately halophilic, endospore-forming bacterium from permafrost in the Canadian high Arctic 2009 59 9 2219 2225 International Journal of Systematic and Evolutionary Microbiology Int J Syst Evol Microbiol 1466-5026 1466-5034 10.1099/ijs.0.002931-0 19605723