Natura - nature
   actualia - actual entities
     Mundus Plinius - physical world
       naturalia - natural bodies
         Clade Biota Wagner 2004 [Wiemann, de Queiroz, Rowe, Planavsky, Anderson, Gogarten, Turner & Gauthier 2020]
           Clade neomura Cavalier-Smith, 1987
             Domain Archaea Woese et al. 2024 [paraphyletic]
               Kingdom Methanobacteriati (Garrity and Holt 2023) Oren and Göker 2024
                 Phylum Methanobacteriotaᵀ Garrity and Holt 2023
                   Class Halobacteria Grant et al. 2002
                     Order Halobacterialesᵀ Grant and Larsen 1989
                       Family Haloarculaceae Gupta et al. 2016
                         Genus Haloarculaᵀ Torreblanca et al. 1986
                           1 Haloarcula amylolytica Yang et al. 2007
                           2 Haloarcula argentinensis Ihara et al. 1997
                           3 Haloarcula hispanica Juez et al. 1986
                           4 Haloarcula japonica Takashina et al. 1991
                           5 Haloarcula marismortui (ex Volcani 1940) Oren et al. 1990
                           6 Haloarcula quadrata Oren et al. 1999
                           7 Haloarcula salaria Namwong et al. 2011
                           8 Haloarcula tradensis Namwong et al. 2011
                           9 Haloarcula vallismortis (González et al. 1979) Torreblanca et al. 1986