Class Mammalia Linnaeus, 1758 - mammals
Count: 21o19f27g86s1ss; †2f2g2s
   Order Marsupialia Jameson, 1818 - marsupials see Cohort Marsupialia Jameson, 1818
  Count: [s] 15f;74g;269s;10ss; ‡1f;4g;12s;1ss
     Family Didelphidae Gray, 1821 - American opossums
    Count: [*] 11g;77s
       Genus Chironectes Illiger, 1811 - yapok
      Count: [*] 1s
         1 Chironectes minimus (Zimmermann, 1780) - water opossum
        Count: -