REPTILES IN GEOLOGY 



151 



ers on tall trees. Some were able to feed thirty and 

 forty feet up. 



One was in the liabit of wadine: on the bottom of 



Fig. 70. — Brontosaurus excelsis, x ^ (restored by Marsh). 



deep pools and projecting its long neck above the 

 water and in all probability was quite helpless on 



Fig. 71.— Eestoratiou of Laostiunis by IMarsb, ^V. 1, tooth of Lno- 

 sauriis altus (after Marsh), front view; 2, the same, side view. 

 Both twice. natural size. 

 13 



