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 Phylum Vulcanimicrobiota Yabe et al. 2024, incertae sedis Class Vulcanimicrobiiaᵀ Yabe et al. 2024 Order Vulcanimicrobialesᵀ Yabe et al. 2024 [monotypic] Family Vulcanimicrobiaceaeᵀ Yabe et al. 2024 Genus "Candidatus Cybelea" Ji et al. 2022