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 Phylum Negarnaviricota Subphylum Polyploviricotina Class Ellioviricetes [monotypic] Order Bunyavirales Family Hantaviridae Subfamily Agantavirinae [monotypic] Genus Agnathovirus [monotypic] 1 Hagfish agnathovirusᵀ