320 



POPULAR SCIENCE MONTHLY. 



of teeth, are known from the chalk of England. Ehamphorhynchus 

 and the still earlier Dimorphodon, as well as the later Pterodactylus 

 are from the Jurassic deposits of England. 



Restoeation of KiiA.Mi'iioRHYNcrs. One-eighth Natural Size After Marsh. 



That the Pteranodon had a marvelous capacity for flight, there 

 can be hardly a question. Their remains are often found in the Kan- 

 sas marine chalk deposits associated with others of deep-sea animals, 

 and many miles away from the ancient shore lines; found so com- 

 pletely preserved that they never could have drifted far. With their 

 remains have been found the fossilized stomach contents, including 

 comminuted fish bones and scales. The bones of their skeletons were 



View of Cretaceous Chalk Deposits of Western Kansas. 



very hollow and light, perhaps more so than in any other animals that 

 have ever lived; so light indeed that a finger bone twenty-six inches 

 in length might be best likened to a hollow cylinder of blotting paper 



