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 Mycoplasmatota Murray 2021 [monotypic] Class Mollicutes Edward and Freundt 1967 (Approved Lists 1980) Family "Candidatus Oceanoplasmataceae" Vohsen et al. 2024 nom. pro-inval., incertae sedis Genus "Candidatus Thalassoplasma" Vohsen et al. 2024 nom. pro-inval.