86 University Geological Survey of Kansas. 
It caps a comparatively prominent escarpment in places, such 
as Altamont, Edna on the south and Hammond on the north. 
Characteristics—The Altamont limestone has no specially 
marked characteristics which particularly distinguish it from 
other limestones in this part of the state. It furnishes stone 
for quarrying purposes at Parsons and fairly good quarries 
could be opened at other places. Throughout a part of its 
course it is practically one solid mass of limestone, but else- 
where is divided into individual layers permitting it to be 
quarried regularly. 
For list of fauna of the Altamont limestone, see chart, 
plate XLIT; for list of flora, see chapters by Doctor Sellards, 
this volume. 
Walnut Shales. 
The name Walnut shales, here used for the first time, is ap- 
plied to the bed of shales filling the interval between the Alta- 
mont and Coffeyville limestones. They are clay shales, differ- 
ing so little in color and general characteristics from other 
shales in this part of the state that from physical properties 
alone there is nothing specially to designate them. They cover 
a narrow strip from Pleasanton southwest by way of Parsons, 
throughout which distance they are about a mile in width. 
From here southwest they gradually widen until in the vicin- 
ity of Edna they are from six to eight miles in width. They 
cover the surface around the town of Walnut, from whence 
the name is taken. 
Walnut Shales. 
The name Dudley shales was applied by Adams to a bed of 
shales described as follows: “The name Dudley shales is here 
applied to the beds occupying the interval between the Par- 
sons limestone and the Hertha limestone, which, as explained 
above, in the discussion of the synonym, are the equivalent of 
Haworth’s Lower Pleasanton shales.” We apply the name 
Walnut for a portion covered by Adams’s name Dudley, for 
the following reasons: First, the town of Dudley does not rest 
on these shales at all, but on the Ladore shales named by 
Adams, which name we adopt and which lie above the Bethany 
Falls limestone. Second, Adams, under the name Bandera 
shales, says, page 32: “These shales are the equivalent of the 
Lower Pleasanton shales of Haworth.” This latter state- 
19. Adams, Dr. Geo. I.: U.S. G.S., Bull. 211, p. 34. Washington, 1903. Also 
Bull. 238, p. 17. Washington, 1804. 
