Prosser.|  Cretaceous.—Comanche Series of Kansas. 99 
rado. This sandstone horizon is evidently very variable in thick- 
ness and may indeed be absent locally. It is succeeded ‘by dark 
blue, drab and buff shales 50 to 70 feet above a soft yellow, some- 
times reddish, obliquely laminated sandrock, five feet, more or less, 
and below a stratum of drab sometimes sandy, shale, two to five 
feet, containing streaks of lignite and fragments of bituminized 
WOOGK ERT yas 
Succeeding the shale horizon occur successive beds of shaly 
limestone, alternating with drab and buff, more or less arenaceous 
shales, which are charged with fossils, mostly belonging to a species 
of Gryphaea resembling G. Pitcher, an Hxogyra, Trigonia, Turritella, 
ete. The latter also occurs in the upper portions of the underlying 
Shales. The association of species and abundance of individuals 
strongly recall occurrences in Texas. * * * Judging from data 
at present accessible, it would appear that the present region marks 
the limits of the northern extension of this peculiar southern fauna 
of the Cretaceous.”! - 
In a “Report on Geology” to the Kansas Academy of Science 
in 1885 Professor Hay stated that “The beautifully variegated sand- 
stones referred to by Professor Cragin in a printed notice of a run 
through Barber county I am inclined to consider as undoubtedly 
Dacota, but in the only place where I got at their base they seemed 
to rest on the eroded surface of the Red Rock.’” 
Cragin, 1889-90.—In his “Geological notes on the region south of 
the Great Bend of the Arkansas” Professor Cragin states that he 
“wrongly assigned all the formations beween the great gypsum 
horizon and the base of the Tertiary southwest of Sun City to the 
Benton epoch.® 
In this paper Professor Cragin describes a section of these rocks 
as Shown in a ravine, and higher on a hill side to the southwest of 
Gelvidere, on the Medicine Lodge river. So far as known this is 
the first accurate section of the Cretaceous rocks of southwest 
Kansas. Following the section were lists of fossils from the differ- 
1 Fifth Biennial Report Kansas State Board of Agriculture, pp. 143, 144. 
2 Transactions Kansas Academy Science, Vol. X, 1887, p. 22. 
3 Bulletin Washburn College Laboratory Natural History, Vol. 2, February 1889, 
p. 33. Topeka. 
