Kingdom: Animalia
Phylum: Chordata
Subphylum: Vertebrata
Class: Aves
Subclass: Neornithes (2,057 genera / 9,672 species)
Infraclass: Eoaves
Parvclass: Passerae
Phylum: Chordata
Subphylum: Vertebrata
Class: Aves
Subclass: Neornithes (2,057 genera / 9,672 species)
Infraclass: Eoaves
Parvclass: Passerae
Superorder: Passerimorphae
Order: Gruiformes (53/196 sunbittern, bustards, crowned-cranes, typical cranes, limpkin, sungrebes, trumpeters, kagu, seriemas, rails, gallinules, coots, mesites)
- Suborder: Grui
- Infraorder: Eurypygides
- Family: Eurypygidae (1/1 sunbittern)
Infraorder: Otidides
- Family: Otididae (6/25 bustards)
Infraorder: Gruides
- Parvorder: Gruida
- Superfamily: Gruoidea
- Family: Gruidae (2/15)
- Subfamily: Balearicinae (crowned-cranes)
Subfamily: Gruinae (typical cranes)
Family: Heliornithidae (4/4)
- Tribe: Aramini (limpkin)
Tribe: Heliornithini (sungrebes)
Superfamily : Psophioidea
- Family: Psophiidae (1/3 trumpeters)
Parvorder: Cariamida
- Family: Cariamidae (2/2 seriemas)
Family: Rhynochetidae (1/1 kagu)
Suborder: Ralli
- Family: Rallidae (34/142 rails, gallinules, coots)
Suborder: Mesitornithi
- Family: Mesitornithidae (2/3 mesites, monias, roatelos)