Natura - nature actualia - actual entities Mundus Plinius - physical world naturalia - natural bodies [crown] Clade Biota J.R. Wagner, 2004 [J. Wiemann et al., 2020] Domain Bacteria (Haeckel, 1894) C.R. Woese et al., 1990 [paraphyletic?] Phylum Synergistetes Jumas-Bilak et al., 2009 [monotypic] 1 Class Synergistiaᵀ Jumas-Bilak et al., 2009 [monotypic]