Procaryotic Genera Domain "Bacteria" Woese et al. 1990 Phylum Firmicutes corrig. Gibbons and Murray 1978 (Approved Lists 1980) Class "Bacilli" Garrity et al. 2001 nom. ined. see Class Bacilli Ludwig et al. 2010 Order Bacillales Prévot 1953 (Approved Lists 1980) Family Bacillaceae Fischer 1895 (Approved Lists 1980) Genus Amphibacillus Niimura et al. 1990