26 TJic American Geologist. January, 1900 
Kansas. Ferruginous sandy concretions yielded the follow- 
ing : 
Gryphcca corrugata Say. 
Ostrea quadriplicata Shumard (?). 
Plicatula, sp. ^ 
Protocardia, sp. 
Sandstone band and ferruginous concretions in upper part, 
on Spring Creek clays at Greenleaf s ranch : 
Lingula, sp. 
Gryphsea corrugata Say. 
Cyprimeria texana, var. Kiowana Crag. 
Cardium (?). 
Tellina (?). 
Nucula or Lida. 
Mactra, sp. 
Cprbula, sp. 
Pholodomya sancti-sabae (Roemer)? Same as Kiowa form. 
Sharks' teeth and fish scales. 
The most of these shells are imperfect casts in friable sand- 
stone that does not preserve surface features and while I be- 
lieve that all are Kiowa forms they cannot be positively identi- 
fied except in the cases indicated. 
Fossils from the Greenleaf sandstone, Greenleaf 's ranch, 
ten miles west of Belvidere. 
Lingula, sp. 
Pholodomya sancti-sabse (Roemer)? 
Cyprimeria texana, var. Kiowa Crag. (?). 
Turitella, sp. 
Numerous teeth of sharks, etc." 
II. The Clark Count)- Localit}-. 
a. Description and History. 
The Cretaceous of Clark county outcrops on the slopes of 
hills on Blufif, Bear, Sand and Kiger creeks and their tribu- 
taries. It is everywhere underlaid by the Red-beds and capped 
by the Tertiary. The geologists who have worked in the 
region so far as known are Dr. Williston. Dr. Haworth, Prof. 
Cragin, Prof. Prosser, Mr. Johnson, Dr. Ward and, Dr. Stan- 
ton. The same geneal features as those of the Belvidere 
locality are observable with the exception that the Cheyenne 
