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 Bacillatiᵀ (Gibbons and Murray 1978) Oren and Göker 2024 Phylum Chloroflexota Garrity and Holt 2021 Class Ktedonobacteria corrig. Cavaletti et al. 2007 Order Ktedonobacteralesᵀ corrig. Cavaletti et al. 2007 Family Ktedonosporobacteraceae Yan et al. 2020 [monotypic] 1 Genus Ktedonosporobacterᵀ Yan et al. 2020