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 Pleolipoviridae Genus Alphapleolipovirus 1 Haloarcula virus HHPV1 2 Haloarcula virus HHPV2 3 Halorubrum virus HRPV1ᵀ 4 Halorubrum virus HRPV2 5 Halorubrum virus HRPV6