44 Vaughan — Outlying Areas of the Comanche Series. 



two members of the Belvidere beds, a lower sandstone mem- 

 ber, the Cheyenne sandstone of Cragin,* and an upper shale 

 member, the Kiowa shales of Cragin.f The following descrip- 

 tion of the general features of the section are taken from Mr. 

 Hill's article in this Journal. 



IV. Plains Tertiary 11 ft, 



III. Dakota sandstone _ _ 20 " 



II. Belvidere beds : 



b. Kiowa shales, blue and black shales, 



with fossils 102 " 



a. Cheyenne sandstone, gradating up- 

 ward into b 71 " 



I. Red beds ._ 300 " 



For the details of the section the article by Mr. Hill, previ- 

 ously referred to, Professor Cragin's last contribution to the 

 subject, in the American Geologist for December, 1895, and 

 Professor Prosser's report should be consulted. 



The Kiowa shales, in which the marine fossils occur, belong 

 to the Washita division of the Comanche Series, as defined by 

 Mr. Hill. The homotaxial relations of the Cheyenne sand- 

 stone are as yet indefinite. 



There is no necessity for making further notes on the 

 vicinity of Belvidere, so I shall proceed to describe the other 

 localities and outcrops examined. 



Outcrops of the Cheyenne sandstone can be seen in Barber 

 County, about five miles from Sun City on the road to Cold- 

 water, where it is light-colored and cross-bedded, contains clay 

 nodules, and weathers into pillars and pinnacles. The contact 

 between the sandstone and the Bed Beds was seen at many 

 places, showing that the former rests upon the deeply eroded 

 surface of the latter. Outcrops of the sandstone were occa- 

 sionally seen on the divide until the descent into the valley of 

 Mule Creek was made. The approximate elevation of the base 

 of the sandstone on the north side of Mule Creek is 1940 to 

 1960 feet. 



Exposures of the Cretaceous occur in Comanche County, 

 about one mile south and five miles east of the village of 

 Nescatunga, around the head of a draw that runs southward 

 into Xescatunga Creek, at an elevation, as judged by the 

 topographic map, between 2020 and 2040 feet. There are 

 several exposures in this vicinity. The easternmost examined 

 consisted of a few feet of very fine-grained pulverulent, strati- 

 fied, white or pinkish sand, resting unconformably upon the 

 Bed Beds. The more western exposures show that the sands 



*Bull. Washb. Coll. Lab., vol. ii, No. 10, p. 65, December, 1889. 

 f Col. Coll. Studies, 5th Ann. Publication, p. 49, 1894. 



