Great Salamanders and their Associates 



'^ff 



water and being worn away to form new beds 

 of rocks, while much of it that lay beneath the 

 sea remained there long enough to be com- 

 pletely and deeply covered by rocks that were 

 deposited later. 



Possibly another reason is that these de- 

 posits have not been worked to the same 

 extent as others 

 that promise bet- 

 ter and more 

 rapid returns for 

 the time and la- 

 bor expended. 



Dinosaurs 

 came into being 

 during Triassic 

 times, but the 

 story of these 

 animals forms a 

 chapter by itself, 

 the more that their record in the Trias consists 

 mainly of footprints. However, the few bones, 

 and teeth of carnivorous species found in Con- 

 necticut, North Carolina, Colorado, Texas, Ari- 



139 



Outlines of dinosaur footprints in the 

 red sandstone of the Connecticut Val- 

 ley. Very much reduced. (After 

 Hitchcock.) 



3, Macropiema divari- 5, Anomcepus scam- 



cans, bus. 



4, Apatichnus bellus. 6, Otozoum nioodii. 



