Maryland Geological Survey 89 



of land-derived materials. A very much greater proportion of glauconitic 

 materials at times shows that the seas must have been clear and that most 

 of the terriginous materials had been already deposited near the shore- 

 line of the time. 



To the northeast of Maryland later Cretaceous deposits appear, repre- 

 senting the later epochs of the Upper Cretaceous period, but they are 

 absent in Maryland, in all probability because of the extensive trans- 

 gression of the Tertiary. While in the northern part of the New Jersey 

 Coastal Plain the Eocene deposits succeed the Cretaceous with little or no 

 unconformity, in Maryland the break represents a long interval in time, 

 including not only the later epochs of the Cretaceous but the earliest 

 epochs of the Eocene. 



DISTKIBUTION OF THE FAUNA AND FLOEA 



The following tables show the geological and geographical distribution 

 of the animal and plant remains that have been found in the Upper 

 Cretaceous deposits of Maryland and adjoining areas in Delaware and 

 the District of Columbia. The writer is indebted to Edward W. Berry 

 for the list of fossil plants and to Julia A. Gardner for the list of animal 

 remains. The species in these tables will be fully described in subsequent 

 chapters. 



