procaryotes Domain Archaea Woese et al. 1990 Phylum Euryarchaeota Garrity and Holt 2001 Class Halobacteria Grant et al. 2001 see Class Halobacteria Grant et al. 2002 Order Halobacteriales Grant and Larsen 1989 Family Halobacteriaceae Gibbons 1974 (Approved Lists 1980) 01 Genus Halobacterium Elazari-Volcani 1957 (Approved Lists 1980) 02 Genus Haloarcula Torreblanca et al. 1986 03 Genus Halobaculum Oren et al. 1995 04 Genus Halococcus Schoop 1935 (Approved Lists 1980) 05 Genus Haloferax Torreblanca et al. 1986 06 Genus Halogeometricum Montalvo-RodrÃguez et al. 1998 07 Genus Halorubrum McGenity and Grant 1996 08 Genus Haloterrigena Ventosa et al. 1999 09 Genus Natrialba Kamekura and Dyall-Smith 1995 nom. inval. see Genus Natrialba Kamekura and Dyall-Smith 1996 10 Genus Natrinema McGenity et al. 1998 11 Genus Natronobacterium Tindall et al. 1984 12 Genus Natronococcus Tindall et al. 1984 13 Genus Natronomonas Kamekura et al. 1997 14 Genus Natronorubrum Xu et al. 1999