The order Casuariiformes is a small order that consists of 3 families and 7 ratite birds found in Australia, Papua New Guinea and New Zealand: Cassowaries, Emus and Kiwis.
| Family | Common name | Total number |
| Casuariidae | Cassowary | 3 (1 genus) |
| Dromiceiidae | Emu | 1 (1 genus) |
| Apterygidae | Kiwis | 3 (1 genus |
BIODIVERSITY / BIOGEOGRAPHY:
Casuariiformes are a small group and are restricted geographically. There is one Cassowary in Australia, one in Papua New Guinea, and one in Borneo. There is only one Emu and its found in Australia. The Kiwis are found in New Zealand and were recently added to this order based on molecular data.
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