ruminiclostridium hungatei ruminiclostridium hungatei ruminiclostridium hungatei is an obligately anaerobic, cellulolytic, mesophilic and nitrogen fixing bacterium from the genus of clostridium which has been isolated from soil in amherst in the united states. ruminiclostridium hungatei scientific classification domain: bacteria phylum: bacillota class: clostridia order: eubacteriales family: oscillospiraceae genus: ruminiclostridium species: r. hungatei binomial name ruminiclostridium hungatei(monserrate et al. 2001) zhang et al. 2018 type strain ad, atcc 700212, dsm 14427, kctc 12929 synonyms clostridium hungatei