The Waterfowl (Anseriformes) - order

(Gastornithidae)
- family -extinct-

(Dromornithidae)
- family
(Anhimae) - suborder
(Chaunoides) - superfamily
The Screamers
(Anhimidae)
- family

(Presbyornithidae)
- family
(Anseres) - suborder
(Anseranatoidea) - superfamily

(Anseranatidae)
- family
(Anatoidea) - superfamily

(Paranyrocidae)
- family
The Ducks, Geese, and Swans
(Anatidae)
- family