THE CLASSIFICATION ORME TURE RRS. ules OZOKE 
ROCKS OF VGMNMR NE Ke AN Stor 
Introduction. CONTENTS. 
‘Topography. 
Principal Rivers. 
The Cottonwood Valley. 
Description of the Geological Formations. 
The Wabaunsee formation. 
Early Geologic Exploration. 
Paleontology. 
Meek and Hayden’s Classification. 
Newberry’s Classification. 
Comparison of the Wabaunsee Formation with Swallow’s Section. 
Comparison with Haworth and Kirk. 
‘The Cottonwood Formation. 
Geologic Section of the Cottonwood Formation. 
Distribution and Character of the Cottonwood Limestone. 
Fauna of the Cottonwood Shales. 
Former Descriptions of the Cottonwood Limestone. 
Geographic Extent of the Cottonwood Limestone. 
The Neosho Formation. 
Geologic Section of the Neosho Formation. 
Paleontology. 
Comparison of the Neosho Formation with Swallow’s Section. 
Comparison with Meek and Hayden. 
The Chase Formation. 
Three Flint Horizons. 
General Geologic Section of the Chase Formation. 
Paleontology. 
Comparison of the Chase Formation with Swallow’s Section. 
Comparison with Meek and Hayden. 
Comparison with Hay’s Fort Riley Section. 
The Marion Formation. 
Paleontology. 
Comparison of the Marion Formation with Swallow’s Section. 
Comparison with Meek and Hayden. 
Conclusions. 
INTRODUCTION. 
RECENT studies of the geology of eastern central Kansas, in 
connection with the preparation of geologic maps of that region 
* Published by permission of the Director of the United States Geological Survey. 
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