[viruses]
   Realm Riboviria
     Family Astroviridae
       Genus Mamastrovirus
         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