Gruiformes (coots, cranes, and rails) | 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)
        
        Class Aves (birds)
        
        Subclass Neognathae (neognath birds)
        
        Infraclass Neoaves (modern birds)
        
        Order Gruiformes (coots, cranes, and rails)
        
        Family Aramidae (limpkin)
        
        Family Cariamidae (seriemas)
        
        Family Eurypygidae (sunbittern)
        
        Family Gruidae (cranes)
        
        Family Heliornithidae (finfoots)
        
        Family Otididae (bustards)
        
        Family Psophiidae (trumpeters)
        
        Family Rallidae (coots, rails, and relatives)
        
        Family Rhynochetidae (kagu)