halorubrum alkaliphilum halorubrum alkaliphilum halorubrum alkaliphilum is a halophilic archaeon in the family of halorubraceae. halorubrum alkaliphilum scientific classification domain: archaea kingdom: euryarchaeota phylum: euryarchaeota class: halobacteria order: haloferacales family: halorubraceae genus: halorubrum species: h. alkaliphilumfeng et al. 2005 binomial name halorubrum alkaliphilum synonyms halorubrum novitatis