Class Mammalia Linnaeus, 1758 - mammals
   Subclass Theria Parker & Haswell, 1897
     Order Peramelemorphia Ameghino, 1889
       Family Peramelidae Gray, 1825 - bandicoots
         Subfamily Peramelinae Gray, 1825
           Genus Isoodon Desmarest, 1817 - short-nosed bandicoots
             Isoodon obesulus (Shaw, 1797) - southern brown bandicoot
               1 [Isoodon obesulus obesulus]ᵀ (Shaw, 1797)
               2 Isoodon obesulus nauticus Thomas, 1922