Natura - nature actualia - actual entities Mundus Plinius - physical world naturalia - natural bodies [crown] Clade Biota Wagner 2004 [Wiemann, de Queiroz, Rowe, Planavsky, Anderson, Gogarten, Turner & Gauthier 2020] Domain Bacteria Woese et al. 1990 [paraphyletic?] Superphylum Terrabacteria Battistuzzi et al. 2004 Phylum Firmicutes corrig. Gibbons and Murray 1978 (Approved Lists 1980) Class Bacilli Ludwig et al. 2010 Order Bacillalesᵀ Prévot 1953 (Approved Lists 1980) Family Bacillaceaeᵀ Fischer 1895 (Approved Lists 1980) Genus Geobacillus Nazina et al. 2001 01 Geobacillus caldoxylosilyticus (Ahmad et al. 2000) Fortina et al. 2001 02 Geobacillus galactosidasius Poli et al. 2012 03 Geobacillus gargensis Nazina et al. 2004 04 Geobacillus jurassicus Nazina et al. 2005 05 Geobacillus kaustophilus (Priest et al. 1989) Nazina et al. 2001 06 Geobacillus lituanicus Kuisiene et al. 2004 07 Geobacillus stearothermophilus (Donk 1920) Nazina et al. 2001 08 Geobacillus subterraneus Nazina et al. 2001 09 Geobacillus thermantarcticus (Nicolaus et al. 2002) Coorevits et al. 2012 10 Geobacillus thermocatenulatus (Golovacheva et al. 1991) Nazina et al. 2001 11 Geobacillus thermodenitrificans (Manachini et al. 2000) Nazina et al. 2001 12 Geobacillus thermoglucosidasius (Suzuki et al. 1984) Nazina et al. 2001 13 Geobacillus thermoleovorans (Zarilla and Perry 1988) Nazina et al. 2001 14 Geobacillus toebii Sung et al. 2002 15 Geobacillus uzenensis Nazina et al. 2001 16 Geobacillus vulcani (Caccamo et al. 2000) Nazina et al. 2004