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] Domain Bacteria Woese et al. 2024 Kingdom Pseudomonadati (Gibbons and Murray 1978) Oren and Göker 2024 Phylum Calditrichota Kublanov et al. 2021 Class Calditrichiaᵀ Kublanov et al. 2022 [monotypic] Order Calditrichalesᵀ Kublanov et al. 2020 [monotypic] Family Calditrichaceaeᵀ Kublanov et al. 2020 [monotypic] Genus Caldithrixᵀ Miroshnichenko et al. 2003 Caldithrix abyssiᵀ Miroshnichenko et al. 2003