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 Haloferacaceae Gupta et al. 2015 01 Genus "Candidatus Halobonum" Ugalde et al. 2020 02 Genus Halalkaliarchaeum Sorokin et al. 2019 03 Genus Halalkalirubrum Zuo et al. 2022 04 Genus Halegenticoccus Liu et al. 2020 05 Genus Halobaculum Oren et al. 1995 06 Genus Halobellus Cui et al. 2011 07 Genus Halobium Mori et al. 2016 08 Genus Haloferaxᵀ Torreblanca et al. 1986 09 Genus Halogeometricum Montalvo-Rodríguez et al. 1998 10 Genus Halogranum Cui et al. 2010 11 Genus Halohasta Mou et al. 2013 12 Genus Halolamina Cui et al. 2011 13 Genus Halonotius Burns et al. 2010 [monotypic] 14 Genus Haloparvum Chen et al. 2016 15 Genus Halopelagius Cui et al. 2010 16 Genus Halopenitus Amoozegar et al. 2012 [monotypic] 17 Genus Haloplanus Bardavid et al. 2007 18 Genus Haloprofundus Zhang et al. 2017 19 Genus Haloquadratum Burns et al. 2007 [monotypic] 20 Genus Halorubrum McGenity and Grant 1996 21 Genus Natronocalculus Sorokin et al. 2023 22 Genus Salinigranum Cui and Zhang 2014 23 Genus Salinirarus Zhang et al. 2025 24 Genus Salinirubrum corrig. Cui and Qiu 2014