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 Pseudomonadotaᵀ Garrity et al. 2021 Class Alphaproteobacteria Garrity et al. 2006 Order Rhodobacterales Garrity et al. 2006 [Family Rhodobacteraceaeᵀ Garrity et al. 2006 nom. illeg.] see Family Paracoccaceae Liang et al. 2022 [Genus Silicibacter Petursdottir and Kristjansson 1999] see Genus Ruegeria Uchino et al. 1999 1 [Silicibacter lacuscaerulensisᵀ Petursdottir and Kristjansson 1999] see Ruegeria lacuscaerulensis (Petursdottir and Kristjansson 1999) Yi et al. 2007 2 [Silicibacter pomeroyi González et al. 2003] see Ruegeria pomeroyi (González et al. 2003) Yi et al. 2007