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" Order Ligamenvirales Family Lipothrixviridae [Genus Lipothrixvirusᵀ] see Genus Alphalipothrixvirus [Thermoproteus virus 1ᵀ ICTV 7th Report (2000)] see Thermoproteus tenax virus 1