3 1 g Btilleiin of Lahomtones of Denison University [Voi. xi, 
Permian in Kansas. 
Professor Prosser in his “Classification of the Upper Pa- 
laeozoic Rocks of Central Kansas ” ^ has reviewed the work of 
Swallow and Hawn, Meek and Hayden, Newberry and others, 
the earlier writers on the Permian of Kansas. Shumard, Hitch- 
cock and Marcou described rocks in the Canadian-Red River 
district which have been correlated with the Cimarron Series of 
Kansas, Marcou referring them to the Permian and Triassic, 
and Shumard and Hitchcock to the Carboniferous.^ Beds still 
higher in the series were studied by Prof. St. John in 1886, and 
referred doubtfully to the Triassic. The later excellent reports 
on the Permian of Kansas by F. W. Cragin and C. S. Prosser 
are referred to more in detail below. 
Professor Cragin gives the following : 
“ Classification of the Rocks of the Permian System m Kansas. 
II. Cimarron Series, iioo to 1250 feet. 
Divisions. Formations. 
Kiger, 
250 feet. 
("Big Basin .Sandstone, 12 feet or less. 
I Hackberry Shales, 15-20 feet. 
-{ Day Creek Dolomite, 1-5 feet. 
( Red Bluff Standstones, 175-200 feet. 
[ Dog Creek Shales, 30 feet. 
Salt Forks, 
900- 1000 feet. 
(' Cave Creek Gypsum, 50 feet. 
I Flowerpot Shales, 150 feet. 
\ Cedar Hills Sandstones, 50 to 75 feet. 
I Salt Plain Measures, 155 feet or more 
[ Harper Sandstones, 650 feet. 
Sumner, 
550-800 feet. 
Flint Hills, 
400 feet. 
I. Big Blue Series, 900 to iioo feet. 
/ Wellington Shales, 250-450 feet. 
( Geuda Salt Measures, 300-400 feet. 
J Chase Limestones (Prosstr), 265 feet, 
t Neosho Shales (Prosser), i3ofeet. 
The following generalized section is compiled from Pro- 
fessor Cragin’s article in Vol. VI, Colorado College Studies: 
^ Jour. Geol. Vol. Ill, Nos. 6 and 7, 1895. 
^ Colorado College Studies, Vol. VI, p. i. 
