bacteria family - a family of bacteria

Eubacteriales, order Eubacteriales - one of two usually recognized orders of true bacteria; gram-positive spherical or rod-shaped forms; some are motile; in some classifications considered an order of Schizomycetes

genus Bacillus - type genus of the Bacillaceae; includes many saprophytes important in decay of organic matter and a number of parasites

genus Clostridium - anaerobic or micro-aerophilic rod-shaped or spindle-shaped saprophytes; nearly cosmopolitan in soil, animal intestines, and dung