Mammalian Fossils from Devil's Gulch 17 



Plate III 



Scene at Devil's Gulch. Dragging the pelvis of Eubelodon viorrilli over 

 the brink of the canyon by means of block and tackle. 



Plate V 



Tetrabelodon willistoni. Side view showing fiat occiput, narrow, but 

 well-arched dome, and long jaw with tusks. The tool marks indicate the 

 parts restored. The upper molars are Nos. i, 2, 3, and 4. The lower 

 molars are Nos. 2, 3, and 4. Attention is directed to the lachrymal bone. 



Plate VI 



Tetrabelodon willistoni. a, top view of skull showing a narrow, but 

 well-arched dome, flattish occiput, expanded anterior nares, and greatly 

 reduced nasals. Tool marks indicate restored parts, b^ palatine view, 

 showing bifurcated maxillae, narrow posterior nares, and teeth, Nos. I, 2, 

 3, and 4. Tool marks at the base of skull indicate restoration. 



Plate VII 



Skull of Modern Elephant. Top and side views of Elephas indicus. 

 For comparison with Tetrabelodon willistoni. From a . specimen in the 

 State Museum. 



Plate VIII 



Tetrabelodon willistoni. a, mandible showing slightly decurved sym- 

 physis; deep groove, and two strong tusks; molars 2, 3, 4; strong ascend- 

 ing rami ; relatively high condyles and coronoids, and a pronounced sig- 

 moid notch, b, top view, c, bottom view. 



Plate IX 



Eubelodon morrilli. Palatine view of skull showing wedge-shaped 

 tusks, molar No. 6, and large circular, posterior nares. The tinted area 

 at the base of the skull signifies restoration. Photographed under nearly 

 impossible conditions. 



Plate X 



Eubelodon morrilli. a, mandible, side view, showing low, ascending 

 rami, low condyles and coronoids. Length 43 inches (1,092 mm.), b, top 

 view. Sixth molar 8 X 3^ inches (203 X 89 mm.). Symphysial prolonga- 

 tion I5>^ inches (393 mm.), c, bottom view. 



Plate XI 



Vertebrae, Eubelodon morrilli. a, side view of fifteen vertebrae. Eleven 

 were found in position with ribs attached. All ribs save two have been 

 removed, h, dorsal view. X Vk- 



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