ADDITIONS TO THE UPPER CRETACEOUS INVERTE- 

 BRATE FAUNAS OF THE CAROLINAS 



By Lloyd W. Stephenson 

 Of the United States Geological Survey 



INTRODUCTION 



The marine invertebrate Cretaceous faunas of North Carolina, 

 with the exception of those of microscopic size, which have not yet 

 been studied, were described in the fifth volume of the North Caro- 

 lina Geological Survey, issued in 1923.^ A few species from the ad- 

 joining State of South Carolina were included in the descriptions. 

 Since the appearance of that volume additional material has be- 

 come available from two localities, one in North Carolina and the 

 other in South Carolina. 



The collection from North Carolina was obtained in 1923, at the 

 new Rocky Point quarries, a mile northeast of Rocky Point station, 

 Pender County, by Dr. L, B. Kellum, who was then engaged in a 

 field study of the Eocene and Miocene fossil faunas of the eastern 

 part of the State, and by me in 1926. This quarry is not identical 

 with French Brothers' quarry at old Rocky Point, on Northeast 

 Cape Fear River, 3 miles east of Rocky Point station, where the; 

 earlier Rocky Point collections were made. 



Kellum did not furnish a detailed description of the section in 

 which these fossils were found, but he reported that they were con- 

 tained in a loose sandy matrix in the uppermost layer of the Peedee 

 formation. The Peedee formation (Upper Cretaceous) of this gen- 

 eral area, as shown by the quarries at Castle Hayne and at old Rocky 

 Point, is unconformably overlain by the Castle Hayne marl, a forma- 

 tion of Jackson Eocene age. When I visited the new quarries in 

 May, 1926, they were not in operation and the pits were filled with 

 water so that the section could not be examined. Both the Peedee 



1 The Cretaceous formations of North Carolina : North Carolina Geol. and Econ. 

 Survey, vol. 5, 1923 ; Stephenson, L. W., Invertebrate fossils of the Upper Cretaceous 

 formations, pp. 1-402, 409-592, pis. 1-100 ; and Rathhun, Mary J., Decapod crustaceans 

 from the Upper Cretaceous of North Carolina, pp. 403-408, 593-596, pis. 101 and 102. 



No. 2706.— Proceedings U. S. National Museum, Vol. 72, Art. 10. 



55221—27 1 1 



