NORTH AMERICA AND THEIR VERTEBRATE FAUNA. 



33 



roughly parallel with them. Between and above the limestones lie heavy 

 beds of red clay, with local developments of cross-bedded sandstones, con- 

 glomerates, patches of blue clay, etc., in inextricable confusion. In the 

 valley of the Little Wichita, just beyond the beginning of the breaks south 

 of Dundee, an outcrop of shaly sandstone may be traced in a direction 

 totally at variance with the general strike of the limestones. In the spot 

 mentioned, the strike of the sandstone is almost directly northwest-south- 

 east, and is not in accord with the strike of the beds above and below them. 

 Numerous examples of this kind could be cited. (See plates 5-10.) 



Fig. 4. — Map showing location of sections given in text. 

 SECTIONS. 



The following series of sections taken by various workers in the Texas 

 area will give some idea of the general character of the beds. Their location 

 is shown in fig. 4. As in other locahties in the Red Beds of the Permo- 



