| Scientific Name | TSN | Taxon Author | Common Name | Name Source | Usage | Reason (ITIS) | Taxon Rank |
|---|
| Apterygidae | 174392 | | Kiwis | ITIS | valid | | Family |
| Apterygiformes | 174391 | | | ITIS | invalid | junior synonym of Struthioniformes | Order |
| Casuariidae | 174386 | | Cassowaries | ITIS | valid | | Family |
| Casuariiformes | 174382 | | | ITIS | invalid | junior synonym of Struthioniformes | Order |
| Dromaiidae | 174383 | | Emus | ITIS | valid | | Family |
| Rheidae | 174377 | | Rheas | ITIS | valid | | Family |
| Rheiformes | 174376 | | | ITIS | invalid | junior synonym of Struthioniformes | Order |
| Struthionidae | 174373 | | Ostriches | ITIS | valid | | Family |
