[organisms] see Clade Biota Wagner 2004 [Wiemann, de Queiroz, Rowe, Planavsky, Anderson, Gogarten, Turner & Gauthier 2020]
   Domain "Archaea" Woese et al. 1990
     Phylum "Euryarchaeota" Garrity and Holt 2001
       Class Halobacteria Grant et al. 2002
         Order Halobacteriales Grant and Larsen 1989
           Family Halobacteriaceae Gibbons 1974 (Approved Lists 1980)
             Genus Haloferax Torreblanca et al. 1986
               1 Haloferax volcanii (Mullakhanbhai and Larsen 1975) Torreblanca et al. 1986
               2 Haloferax alexandrinus Asker and Ohta 2002
               3 Haloferax denitrificans (Tomlinson et al. 1986) Tindall et al. 1989
               4 Haloferax gibbonsii Juez et al. 1986
               5 Haloferax lucentense corrig. Gutierrez et al. 2004
               6 Haloferax mediterranei (Rodriguez-Valera et al. 1983) Torreblanca et al. 1987
               7 Haloferax sulfurifontis Elshahed et al. 2004