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 Haploviricotina Class Monjiviricetes Order Mononegavirales Family Paramyxoviridae Subfamily Orthoparamyxovirinae Genus Respirovirus 1.1 Caprine respirovirus 3 1.2.1 Bovine respirovirus 3 1.2.2 Human respirovirus 3 2.1 Porcine respirovirus 1 2.2.1 Murine respirovirusᵀ 2.2.2 Human respirovirus 1