CHEAT DINOSAURS 



LOS 



mens to be unearthed by the Museum, while on the righl is ;i nearly com- 

 plete skeleton of a related species mounted as it lay when ten million years 



ago it settled to the bottom of a western lake where it was gradually covered 

 with sand and mud and slowly turned into stone. 



The gigantic skeleton in the center of the hall is the huge extinct rep- 

 tile, the dinosaur Brontosaurus, found in the Jurassic beds 

 of Wyoming. It is the only mounted specimen of its kind 

 in the world and more than two-thirds of the skeleton is the original pet- 

 rified bone. It is sixty-six feet eight inches in length, sixteen feet in height 

 and is estimated to have weighed when alive thirty-five tons. Bronto- 



Brontosaurus 





Allosaurus 



TYRANNOSAURUS AND MAN 

 A man would have been but a mouthful for this the latest and largest of flesh-eating dinosaur 

 Skeletons of two of these monsters are now being mounted for exhibition 



saurus is one of the largest giant reptiles and as is indicated by its teeth 

 was herbivorous, probably living on the rank water weeds of the nearly 

 sea-level marshes of Wyoming. Contrasted with the herbivorous Bronto- 

 saurus, is the carnivorous dinosaur Allosaurus, mounted to 

 represent the animal feeding on the fallen carcass of a Bronto- 

 saurus, upon wdiich it preyed. This is not a fanciful mounting for these 

 very skeletons were found in close proximity to each other in the Jurassic 

 beds of W r yoming, and the skeleton of the fallen Brontosaurus shows gouges 

 made by the teeth of Allosaurus as it tore the flesh from its victim. 



Near the Allosaurus group is a portion of a skeleton of Tyrannosaurus 

 the last and most powerful of the carnivorous dinosaurs. Like Allosaurus 

 it has enormous three-toed hind legs, armed with sharp 

 claws, and smaller forelegs. Tyrannosaurus is from Mon- 

 tana and the matrix in which it was found is as hard as flint. 



Tyranno- 

 saurus 



