The members of the Gram-positive endospore-forming bacteria that made up the genus Bacillus have been gradually subdivided, during the last few years, into a number of new genera such as Alicyclobacillus, Aneuribacillus, Brevibacillus, Gracilibacillus, Paenibacillus, Salibacillus, Ureibacillus, and Virgibacillus. Nazina et al. in 2001 created the genus Geobacillus based around Bacillus (now Geo...