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] ?"viruses" Realm Riboviria Family Nodaviridae Genus Betanodavirus 1 Barfin flounder nervous necrosis virus 2 Redspotted grouper nervous necrosis virus 3 Striped jack nervous necrosis virusᵀ 4 Tiger puffer nervous necrosis virus