Dinosauria. 
PLATE 7. 
Iguanodon Mantelli ; one fourth nat. size. 
1. Upper or vertebral portion of a thoracic rib, front view. 
2. Back view of the same rib. 
3. Upper view of the vertebral end of a thoracic rib, showing the ridge continued 
\ 
upon the long neck. 
| A 
| 4. A considerable portion of a succeeding thoracic rib. | 
| 5. Upper view of the vertebral end of the same rib. | 
| 6. A considerable portion of a succeeding thoracic rib. 
| 7. Upper view of the vertebral end of the same rib. 
| 3, An almost entire rib from about the middle of the thorax. | 
| 
9. An anterior thoracic rib. 
| 10. Upper view of the vertebral end of the same rib. 
From the Wealden of Tilgate forest. In the British Museum. 
