Birds of the World part 1 Paleognaths PALAEOGNATHAE • ORDER STRUTHIONIFORMES – Family Struthionidae – ostriches (2 species) • ORDER RHEIFORMES – Family Rheidae – rheas (2 species) • ORDER TINAMIFORMES – Family Tinamidae – tinamous (47 species) • ORDER APTERYGIFORMES – Family Apterygidae – kiwis (5 species) • ORDER CASUARIIFORMES – Family Casuariidae – cassowaries (3 species) – Family Dromaiidae – emu (1 species) PALAEOGNATHAE • ORDER STRUTHIONIFORMES – Family Struthionidae – ostriches (2 species) • ORDER RHEIFORMES – Family Rheidae – rheas (2 species) • ORDER TINAMIFORMES – Family Tinamidae – tinamous (47 species) • ORDER APTERYGIFORMES – Family Apterygidae – kiwis (5 species) • ORDER CASUARIIFORMES – Family Casuariidae – cassowaries (3 species) – Family Dromaiidae – emu (1 species) ostrich (Struthioniformes) PALAEOGNATHAE • ORDER STRUTHIONIFORMES – Family Struthionidae – ostriches (2 species) • ORDER RHEIFORMES – Family Rheidae – rheas (2 species) • ORDER TINAMIFORMES – Family Tinamidae – tinamous (47 species) • ORDER APTERYGIFORMES – Family Apterygidae – kiwis (5 species) • ORDER CASUARIIFORMES – Family Casuariidae – cassowaries (3 species) – Family Dromaiidae – emu (1 species) greater rhea (Rheiformes) PALAEOGNATHAE • ORDER STRUTHIONIFORMES – Family Struthionidae – ostriches (2 species) • ORDER RHEIFORMES – Family Rheidae – rheas (2 species) • ORDER TINAMIFORMES – Family Tinamidae – tinamous (47 species) • ORDER APTERYGIFORMES – Family Apterygidae – kiwis (5 species) • ORDER CASUARIIFORMES – Family Casuariidae – cassowaries (3 species) – Family Dromaiidae – emu (1 species) rufescent tinamou (Tinamiformes) PALAEOGNATHAE • ORDER STRUTHIONIFORMES – Family Struthionidae – ostriches (2 species) • ORDER RHEIFORMES – Family Rheidae – rheas (2 species) • ORDER TINAMIFORMES – Family Tinamidae – tinamous (47 species) • ORDER APTERYGIFORMES – Family Apterygidae – kiwis (5 species) • ORDER CASUARIIFORMES – Family Casuariidae – cassowaries (3 species) – Family Dromaiidae – emu (1 species) brown kiwi (Apterygiformes) PALAEOGNATHAE • ORDER STRUTHIONIFORMES – Family Struthionidae – ostriches (2 species) • ORDER RHEIFORMES – Family Rheidae – rheas (2 species) • ORDER TINAMIFORMES – Family Tinamidae – tinamous (47 species) • ORDER APTERYGIFORMES – Family Apterygidae – kiwis (5 species) • ORDER CASUARIIFORMES – Family Casuariidae – cassowaries (3 species) – Family Dromaiidae – emu (1 species) southern cassowary (Casuariformes) emu (Casuariiformesbrown kiwi (Apterygiformes) ) .