orenia marismortui orenia marismortui orenia marismortui is a gram-negative, spore-forming, rod-shaped, anaerobic and motile bacterium from the genus of orenia which has been isolated from sediments from the shore of the dead sea. orenia marismortui scientific classification domain: bacteria phylum: bacillota class: clostridia order: halanaerobiales family: halobacteroidaceae genus: orenia species: o. marismortui binomial name orenia marismortui(oren et al. 1988) rainey et al. 1995 synonyms sporohalobacter marismortui