2 54 



E. C. CASE 



3. A heavy bed of red clay of varying shades and some blue 

 streaks. Generally very homogeneous but with some layers of 

 calcareous material. Near the bottom some shaly layers with 

 worm casts. Two hundred and fifty feet thick, more or less. 



4. A second series of sandstone and shaly layers. Bottom not 

 seen, but Triassic bones to bottom of exposures. 



Fig. 7. — A remnant in the Bad Lands of Trujillo Creek. Just below the con- 

 glomerate cap may be seen the layer of bluish sandy clay, just over the figure. Below 

 the bluish layer the clay is purple, which shades downward into bright red. 



The lower beds may be traced to Tucumcari and Montoya, 

 the road lying upon the shelf described above. At Mount Tucum- 

 cari and in the magnificent section seen in Bull Canyon, just south 

 of Montoya, it is the upper portion of the Triassic which is exposed. 

 A sKght antichnal fold at Montoya brings some of the lower beds 

 to the surface, but even here Phytosaur bones were found in the 

 lowest exposures. 



From Montoya the route of the party led along the foot of the 

 mesa to the head of the Conchas River. The sandstone or con- 



