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
               Family Astroviridae
                 Genus Mamastrovirusᵀ
                   01 Mamastrovirus 1ᵀ
                   02 Mamastrovirus 2
                   03 Mamastrovirus 3
                   04 Mamastrovirus 4
                   05 Mamastrovirus 5
                   06 Mamastrovirus 6
                   07 Mamastrovirus 7
                   08 Mamastrovirus 8
                   09 Mamastrovirus 9
                   10 Mamastrovirus 10
                   11 Mamastrovirus 11
                   12 Mamastrovirus 12
                   13 Mamastrovirus 13
                   14 Mamastrovirus 14
                   15 Mamastrovirus 15
                   16 Mamastrovirus 16
                   17 Mamastrovirus 17
                   18 Mamastrovirus 18
                   19 Mamastrovirus 19