LIST OF TEXT-FIGURES 



FI(S. PAGE 



1. A, Upper surface of skull of a Labyrinthodont. B, Upper surface of 



skull of Tuatera. C, Front view of lower end of tibia of a 

 bipedal Dinosaur . . . . . . . . . .n 



2. Upper (A) and lower (B) views of the skull of a Belodont (Phyto- 



saurus). C, Upper view of skull of an extinct Crocodile (Metrio- 

 rhynchus) 21 



3. African egg-eating snake and its mode of swallowing food ... 50 



4. Restoration of Iguanodon ......... 97 



5. A, Skeleton of a short-tailed Pterodactyle (Pterodactylus spectabilis). 



B, Restoration of a long-tailed Pterodactyle (Rhamphorhynchus 

 phyllurns). (By permission of the Trustees of the British 

 Museum) ........... 100 



6. A, Skeleton with outline of body of an Ichthyosaur. B, Skeleton with 



outline of body of a Plesiosaur. After Dr. C. W. Andrews . . 104 



7. The Luth or Leathery Turtle, to show the paddle-like limbs and shell. 



B, Portion of bony shell showing mosaic-like structure . . 108 



8. Restoration of skeleton of an Armoured Dinosaur (Polacanthus foxi). 



After Baron Nopcsa . . . . . . . . .122 



9. A, lateral, B, dorsal views of the skull of a Horned Dinosaur (Tricera- 



tops flabellatus) showing the horn-cores and neck-shield . . 124 



10. Ventral view of the skeleton of the existing Logger-head Turtle 



(Thalassochelys) with the plastron removed to show the position of 

 the shoulder-girdle and pelvis within the ribs. (By permission of 

 the Trustees of the British Museum) . . . . . .131 



11. A, skull of Iguanodon, to show predentary bone and edentulous fore 



part of jaw. B, skull of Dicynodon, showing single pair of upper 

 tusks and horny beak. C, skull of carnivorous Mammal-like 

 Reptile (Galesaurus) to show differentiated dentition. (A and B, 

 by permission of the Trustees of the British Museum) . . . 138 



12. Palatal view of dentition of existing Tuatera (A), and extinct Pavement- 



toothed Tuatera (B). C, Palatal view of dentition of Bean- 

 toothed Reptile (Cyamodus). B, after Boulenger. (C, by permis- 

 sion of the Trustees of the British Museum) ..... 139 



