natranaerobius trueperi natranaerobius trueperi natranaerobius trueperi is a thermotolerant, obligately alkaliphilic, anaerobic and extremely halophilic bacterium from the genus of natranaerobius which has been isolated from sediments from the lake umrisha in egypt. natranaerobius trueperi scientific classification domain: bacteria phylum: bacillota class: clostridia order: natranaerobiales family: natranaerobiaceae genus: natranaerobius species: n. trueperimesbah and wiegel 2009 binomial name natranaerobius trueperi type strain atcc baa-1443, dsm 18760, jw/nm-wn-lu