NORTH AMERICA AND THEIR VERTEBRATE FAUNA. 



39 



Section jj. — In the bluffs on the north side of Beaver Creek, on the 

 Houston and Texas Central Railroad Company survey No. 35, about 

 7.5 miles south and 2.5 miles east of Electra, the following section 

 was noted (Udden) : 



8. Conglomerate of late Tertiary (?) age 3 



7. White sandstone, top of Wichita beds in this section 7 



6. Sandy gray shale 4 



5. Red shale 10 



4. Gray shale, with shells of lime and sand 6 



3. Dark gray limestone 1.5 



2. Gray and bluish gray shale -j 



I. Red shale containing at 18 feet from the top a 9-foot white sandstone which 



runs out in the section in a short distance to the east 33 



71-5 



Fig. 5.— Section in cut along the Wichita Falls and Northwestern Railway, 3.5 miles south of Burkburnett, 

 Wichita County: a. red shale; b, cross-bedded sand; c, erosional unconformity; d, alternating layers 

 of silt and sand. (From Udden.) 



Fig. 6.— Wichita beds exposed in bank of creek in Central Texas Railway Company survey, 9 miles north and 

 2 miles west of Iowa Park, Wichita County: a, shale; b, conglomerate; c, sandstone. (From Udden.) 



Fig. 7. — Exposure in right bank of China Creek in Block 314, Waggoner Colony sur\fey, 7.5 miles north 

 and 4 miles east of Electra, Wichita County. Two sandstone beds, rising from left to righ*-, have been 

 beveled off; some clay was later deposited on the eroded slope; the depression was later filled with 

 sand, which overlaps at the right. (From Udden.) 



Section 34. — In the north bluff of the Wichita River, near the west line 

 of the L. T. Miller survey, about 11 miles south and i mile east of 

 Electra, is the highest single exposure of the Wichita beds in Wichita 

 County (Udden). It measures 130.5 feet, and is as below: ^^^^ 



17. Gray shale, with thin shells of lime 3 



16. Gray limestone of fine te.\ture 2.5 



15. Bluish-gray shale, weathering yellow 16 



14. Sand and shale, purplish in color 3 



13. Blotched gray and red shale 2 



12. Gray sand, cross-bedded 5 



II. Yellow and red clay, mostly red in the upper part 23 



10. Dull red, silty, soft sandstone, mingled with gray layers 5 



9. Gray, muddy shale, cross-bedded sandstone and conglomerate consisting 



of concretions 4 



8. Red clay with some gray blotches 10 



7. Red clay 16 



6. Sand and mottled clay 2 



5. Red clayey shale 17 



4. Gray sandstone, soft i 



3. Red soft sandstone, cross-bedded 8 



2. Blotched gray and red shale, with layers of gray sand, from one-eighth to 



one-half inch thick 2 



I . Mottled brown and gray shale, mostly brown II 



130.5 



