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 Halococcaceae Gupta et al. 2016 [monotypic]
                         Genus Halococcusᵀ Schoop 1935 (Approved Lists 1980)
                           1 Halococcus dombrowskii Stan-Lotter et al. 2002
                           2 Halococcus hamelinensis Goh et al. 2006
                           3 Halococcus morrhuaeᵀ (Farlow 1880) Kocur and Hodgkiss 1973 (Approved Lists 1980)
                           4 Halococcus qingdaonensis Wang et al. 2007
                           5 Halococcus saccharolyticus Montero et al. 1990
                           6 Halococcus salifodinae Denner et al. 1994
                           7 Halococcus sediminicola Yim et al. 2014
                           8 Halococcus thailandensis Namwong et al. 2007