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" Family Polyomaviridae Genus Deltapolyomavirus 1.1 Human polyomavirus 7 1.2 Human polyomavirus 6ᵀ 2.1 Human polyomavirus 11 2.2 Human polyomavirus 10