DRAGONS OF OLD TIME 



149 



way as those of Brontosaurus. The fore limbs were large, as in 

 the latter animal ; and the extremities of the limbs were provided 

 with claws. It had two sternal bones like Diplodocus (see 

 Plate XXI.). Taking all present evidence, it appears that the 

 Atlantosaurus bore a general resemblance to its smaller con- 

 temporary. We can therefore form a fairly good idea of its aspect 

 and proportions. 



The same Jurassic strata from the Eocky Mountains have 



1. 2. 



FIG. 51. Neck vertebrae of Brontosaurus. 



1. Front view. 2. Back view. 



yielded remains of another big Dinosaur, belonging to the same 

 family. This genus, which has been named the Apatosaurus, is 

 represented by a nearly complete skeleton, in the Yale College 

 Museum ; and it is fortunately in an excellent state of preservation. 

 Another species, of smaller size, though not so complete, adorns 

 the same collection. This was about thirty feet long, and is 

 known as Apatosaurus grandis. 



The remarkably small head is one of the most striking features 

 of these Dinosaurs, and presents a curious contrast to the large 



