ProsserR.|  Cretaceous.—Comanche Series of Kansas. 121 
to the thickness of its different divisions. All of the divisions were 
readily recognized except those forming the upper part of the section 
which on account of being partly covered were not so easily defined. 
The numbers of Professor Hill with the thickness of the correspond- 
ing beds are given in the first two columns as a means of assistanc2 
in comparing the two sections. 
Hill’s. Prosser’s. 
Thick Thickness Total 
Nos. 1CK- Nos. of each thick- 
ness. division. ness. 
hae Feet. Feet. 
II Near the top of the Stokes’ Hill thoughacross.... 15 —— 3885 
17 32 21 a draw to the west it is somewhat higher. 
Covered slope. 
Partly covered slope. Yellowish argillaceous.... 25 —— 870 
16 16 20 shales containing fossils, alternating with 
thin yellowish to pinkish limestones. 
Fine argillaceous shales with thicker layers.:.. 15 —— 345 
15 17 19 containing Hxogyra, Cuprimeria, Turri- 
tella and other species. 
At top mainly bluish and blackish, fine argil-.... 20 —— 330 
laceous shales. Near the center coarser 
13 20% 18 yellowish fossiliferous shales containing 
abundantfossils. Atthe base about 9 feet 
fine black shales. 
12 5 17 Black very thin, argillaceous shales like pa-.... 4+ — 310 
per shales. 
11 1 16 Brownish yellow hardershales with abundant.... 1 — 306 
Gry phea. 
Fine black and yellowish argillaceous shales,.... 8 — 305 
10 5 15 partly drab color. The yellowish are 
sandy and contain pebbles. 
Yellowish coarse shales alternating with.... 2 — 297 
9 9 14 black argillaceous shales. Harder than 
the shales below, being sandy and gyp- 
siferous. 
8 4 13 Black paper shales like those below ............. 4 —— 295 
Gypsiferous layer containing black pebbles.... 2+ — 291 
7 9 12 and small coneretions. These contain 
Lingulas, fossil teeth with some other 
species. 
Very black thin sleek argillaceous shales,.... 154% — 289 
6 15% 11 ‘“‘paper shales” of Hill. Sparingly fos- 
siliferous in the lower part. 
Light gray to whitish sandstone of variable.... % — 274 
5 % 10 thickness, from 1 inch to 6 inches. Con- 
tains molluscs. 
Grayish sandy shales, partly cemented by.... 1% — 273% 
gypsum, containing selenite. Immense 
numbers of Gryphea Pitcheri (accord- 
4 1% 9 ing to Hill) occur in this stratum. This 
2 is the one called the Champion shell-bed 
by Cragin who says the abundant fossil 
is Gryphea Hilli Crag. Base of the A7- 
owa shales. 
3 4 8 White to yellowish sandstone ..... .............. 2 — 272 
