Natura - nature actualia - actual entities Mundus Plinius - physical world naturalia - natural bodies [crown] Clade Biota Wagner 2004 [Wiemann, de Queiroz, Rowe, Planavsky, Anderson, Gogarten, Turner & Gauthier 2020] Domain Bacteria Woese et al. 1990 [paraphyletic?] Phylum "Epsilonproteobacteria" Garrity et al., 2006 Class Epsilonproteobacteriaᵀ Garrity et al. 2006 Order Nautiliales Miroshnichenko et al. 2004 [monotypic] Family Nautiliaceaeᵀ Miroshnichenko et al. 2004 Genus Nautiliaᵀ Miroshnichenko et al. 2002 Nautilia abyssi Alain et al. 2009