opitutus opitutus opitutus is a genus of bacteria from the family of opitutaceae with one known species (opitutus terrae). opitutus scientific classification domain: bacteria phylum: verrucomicrobiota class: opitutae order: opitutales family: opitutaceae genus: opitutuschin et al. 2001 type species opitutus terrae species o. terrae