Name all the species of the orders Apterygiformes, Casuariiformes, Rheiformes and Struthioniformes. These orders include the kiwis, cassowaries and emus, rheas and ostriches respectively
Good question. Tinamous are indeed a part of the infraclass Palaeognathae, however the term 'ratite' is polyphyletic and only includes the members of that group that lack a keel bone and therefore are unable to fly. Tinamous are the one exception and do possess a limited flight capability, and therefore are excluded from the ratite group.