AVES
|
NEORNITHES
|
+--PALEOGNATHES
| |--Struthioniformes
| | \--+-----Dinornithidae (Moas) [extinct]
| | \--+--Rheidae (Rheas)
| | \--+--Struthionidae (Ostriches)
| | |--Aepyornithidae (Elephant Birds) [extinct]
| | |--Apterygidae (Kiwis)
| | \--+--Casuariidae (Cassowaries)
| | \--Dromaiidae (Emus)
| \--Tinamiformes
| \--Tinamidae (Tinamous)
|
\--NEOGNATHES
|--GALLOANSERAE
|
\--NEOAVES
|--METAVES
\--CORONAVES