Myxococcus  

What you should know:

Myxococcus is an aerobic, Gram-negative, rod-shaped gliding bacterium. Under certain conditions, Myxococcus cells swarm together to form a fruiting body for reproduction. The spores formed in such fruiting bodies may survive for up to 10 years.

Classification: 

Domain Bacteria

    Phylum Proteobacteria

        Class δ - Proteobacteria 

Bergey's Manual Volume 2: The Proteobacteria

Research/Web links

http://www.microbiology.med.umn.edu/faculty/myxobacteria/myxobacteria.htm