Thamnophis sirtalis (Common Garter Snake) | 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)
        
        Class Reptilia (turtles, snakes, lizards, and relatives)
        
        Order Squamata
        
        Family Colubridae
        
        Genus Thamnophis
        
        Species Thamnophis sirtalis (Common Garter Snake)
        
        Infraspecies Thamnophis sirtalis annectens
        
        Infraspecies Thamnophis sirtalis concinnus
        
        Infraspecies Thamnophis sirtalis dorsalis
        
        Infraspecies Thamnophis sirtalis fitchi
        
        Infraspecies Thamnophis sirtalis infernalis
        
        Infraspecies Thamnophis sirtalis lowei
        
        Infraspecies Thamnophis sirtalis pallidulus
        
        Infraspecies Thamnophis sirtalis parietalis
        
        Infraspecies Thamnophis sirtalis pickeringii
        
        Infraspecies Thamnophis sirtalis similis
        
        Infraspecies Thamnophis sirtalis sirtalis
        
        Infraspecies Thamnophis sirtalis tetrataenia