Holochilus chacarius (Chaco marsh rat) | CLASSIFICATION

Kingdom Animalia (animals)
- Eumetazoa (metazoans)
  - Bilateria (bilaterally symmetrical animals)
    - Deuterostomia (deuterostomes)
      - Phylum Chordata (chordates)
        
        Craniata (craniates)
        
        Subphylum Vertebrata (vertebrates)
        
        Superclass Gnathostomata (jawed vertebrates)
        
        Euteleostomi (bony vertebrates)
        
        Class Sarcopterygii (lobe-finned fishes and terrestrial vertebrates)
        
        Tetrapoda (tetrapods)
        
        Amniota (amniotes)
        
        Synapsida (synapsids)
        
        Class Mammalia (mammals)
        
        Subclass Theria (Therian mammals)
        
        Infraclass Eutheria (placental mammals)
        
        Order Rodentia (rodents)
        
        Suborder Myomorpha (mice, rats, gerbils, jerboas, and relatives)
        
        Superfamily Muroidea (mice, rats, gerbils, and relatives)
        
        Family Cricetidae (New World rats and mice, voles, hamsters, and relatives)
        
        Subfamily Sigmodontinae (South American rats and mice)
        
        Genus Holochilus (marsh rats and web-footed rats)
        
        Species Holochilus chacarius (Chaco marsh rat)