HAWORTH AND BENNETT.] General Stratigraphy. 87 
ment is correct, making the statement that the Dudley shales 
correspond to Haworth’s Lower Pleasanton shales impossible. 
Third, we want a name for the shale-beds above the Altamont 
limestone and below the Coffeyville limestone, but Adams did 
not recognize the Coffeyville limestone, so spread the name 
from the Altamont to the Bethany Falls limestone, thereby 
crowding out Haworth’s?? Lower Pleasanton shales, which, by 
all the laws of priority, should be retained. The name Walnut 
shales, therefore, is applied by us to the shales above the Alta- 
mont limestone and below the Coffeyville limestone. 
Coffeyville Limestone. 
The name Coffeyville limestone is here used for the first 
time. It is applied to the limestone so prominent at Coffeyville, 
from which place it takes its name. It is the limestone spoken 
of as a member of the Parsons by Adams.2! Adams’s error 
was due to a lack of detailed information. Since his latest 
publication on the subject this limestone has been traced with 
great detail by Bennett, who has been able to determine with- 
out question that it is a separate limestone formation extend- 
ing entirely across the corner of the state. Its independent 
existence warrants us in giving it a distinct name. 
Thickness.—The Coffeyville limestone varies from 2 to 3 
feet in thinnest places to a maximum of 10 or more feet 
where it is thickest. From the vicinity of Mound Valley south 
it averages 8 to 10 feet. 
Area.—The Coffeyville limestone is prominently exposed 
along both sides of the Verdigris river at the south line of the 
state and at Coffeyville. It covers but a narrow zone on ac- 
count of the overlying shales not being entirely removed by 
erosion. To the northeastward, in Labette county, it occupies 
a wider zone, which in some places is from seven to eight 
miles wide along Pumpkin creek and its tributaries. Farther 
northeast the limestone grows thinner and consequently has 
had a less influence in shaping surface features. As a result 
it is visible only in places, but sufficiently so to warrant a be- 
lief that it is entirely continuous to the northeast beyond the 
state line. As the underlying shale-beds separating it from 
the Altamont limestone grow thinner to the north, the out- 
cropping of the Coffeyville limestone correspondingly appears 
more nearly along the same lines with the Altamont. 
20. Haworth, Prof. E.: Kan. Univ. Quart., vol. 111, p. 274. Lawrence, 1895. 
21. Adams, Dr. George I.: U.S. G.S., Bull. 211, p. 33. Washington, 1904. 
