halorientalis halorientalis halorientalis is a genus of archaea in the family of haloarculaceae. halorientalis scientific classification domain: archaea kingdom: euryarchaeota phylum: euryarchaeota class: halobacteria order: halobacteriales family: haloarculaceae genus: halorientalis cui et al. 2011 species h. brevis h. pallida h. persicus h. regularis (type sp.)