336 



HISTORICAL GEOLOGY. 



FIG. 284. Iguanodon Bernissartensis. (After Marsh.) 



The most noted of this order found in Europe are the 

 Iguanodon and the Megalosaurus. 

 The iguanodon (Iguana-tooth), 

 judging from the size of its hones, 

 was probably several times more 

 bulky than the elephant ; and yet 

 a perfect skeleton, recently found 

 in Belgium (Fig. 284), shows that 

 it walked on the hind-legs alone, 

 supporting itself by its massive tail. 

 The neck was long, flexible, and 

 bird-like, and the jaws were beaked 

 in front and set with herbivorous, 

 iguanalike teeth (Fig. 285) behind. 

 The megalosaur (great saurian) 

 was not quite so large, but prob- 

 ably still more formidable, since it 

 was carnivorous. A restoration of a smaller allied form 

 is given in Fig. 286. This also walked mainly on two 



FIG. 285. Tooth of an Igua- 

 nodon. 



