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 Caudovirales
               Family Myoviridae
                 Subfamily Eucampyvirinae
                   Genus Firehammervirus
                     1 Campylobacter virus CP21
                     2.1 Campylobacter virus IBB35
                     2.2 Campylobacter virus CP220ᵀ
                     2.3 Campylobacter virus CPt10