UPPER CRETACEOUS FORMATIONS OF NEW JERSEY 579 



The fifth paper was 



MORAINES OF THE SENECA AND CAYUGA LAKE VALLEYS 

 BY RALPH S. TARR 



Remarks on the subject of the paper were made by W. M. Davis. The 

 paper is printed as pages 215-228 of this volume. 



The sixth paper was 



GLACIAL PROBLEMS IN CENTRAL NEW YORK 

 BY H. L. FAIRCHILD 



The Society adjourned for the noon recess. At 2 o'clock the Society 

 reconvened and resumed the reading of papers. 



The first paper was 



AGE OF THE MORRISON FORMATION 

 BY N. H. DARTON 



Remarks were made by T. W. Stanton. 

 The second paper was 



CLASSIFICATION OF THE UPPER CRETACEOUS FORMATIONS OF NEW JERSEY 



BY STUART WELLER 



[Abstract] 



Three classifications of the upper Cretaceous formations of New Jersey have been 

 published in the reports of the Geological Survey of New Jersey — 1, Cook's, 1868 ; 

 2, Clark's, 1892-1897 ; 3, Knapp and Kummel's, 1898-1904. Cook based his classifi- 

 cation upon the lithologic characters of the beds ; fully differentiated the beds of 

 the "marl" series. Clark's classification was based in part upon paleontologie 

 data. He distinguished four major divisions, namely, Matawan, Monmouth, 

 Rancocas, and Manasquan. Knapp and Kurarael have differentiated the old 

 "clay-marl" series of Cook into five formations, namely, Merchantville, Wood- 

 bury, Columbus, Marshalltown, and Wenonah, based upon lithologic characters 

 alone. 



The paleontologic studies of the writer not only add very largely to the previous 

 data regarding the faunas of these beds, but also show (1) that the five " clay- 

 marl" formations of Knapp and Kummel areas sharply differentiated by their 

 fossil contents as by their lithologic characters, and (2) that the " yellow sand " of 

 Cook, which was finally referred to the Miocene by Clark, is of Cretaceous age, 

 being an arenaceous facies of the Vincentown lime-sand formation. 



Remarks were made by H. S. Williams and H. B. Kummel. 



