PROCEEDINGS 



OF THE 



WASHINGTON ACADEMY OF SCIENCES 



Vol. VII, pp. 251-256. July 24, 1905, 



THE CAMBRIAN FAUNA OF INDIA. 

 By Charles D. Walcott. 



Through the courtesy of the Director of the Geological Sur- 

 ve}^ of India, I have had the opportunity of studying the collec- 

 tions of Cambrian fossils from the Cambrian rocks of the Salt 

 Range. The fauna was first described by Dr. William Waagen ^ 

 and later by Dr. K. Redlich." In order to have a stratigraphic 

 section to which the subfaunas may be referred, the following 

 is made up from Dr. Fritz Noetling's^ sections and Dr. Red- 

 lich's* statements of the occurrence of the fossils. Dr. Noet- 

 ling's detailed sections ^ give the stratigraphic succession and 

 character of the Cambrian shales and sandstones, and prove that 

 the sediments of the eastern section of the Salt Range were 

 deposited mainly near shore. The fossils show that they w^ere 

 subjected to the vicissitudes of life on a shifting, sandy and 

 muddy bottom. 



Ag-e 0/ the Contained Fauna. — The first reference of the 

 brachiopods of the lower strata of the Salt Range was to the 

 Silurian." Subsequently they were referred by Dr. Waagen to 



iMem. Geol. Sur. India, Ser. XIII, Vol. I, pp. 748-770, 18S5 ; Vol. IV, pp. 

 S9-108, 1891. 



2 Mem. Geol. Sur. India, New Ser., Vol. I, pp. 1-13, 1899. 



3 Records Geol. Sur. India, Vol. XXVII, 1S94, pp. 74-86. Geol. Salt Range, 

 N. Jahr. Mem. Geol. and Pal., 1901, Bd. XIV, p. 416. 



* Loc. cii., p. 9. 



sRec. Geol. Sur. India, Vol. XXVII, 1S94, pp. 74-86. 



^Mr. Wynne, Geol. Salt Range in the Punjab, Mem. Geol. Sur. India, Vol. 

 XIV, p. 86. 



Proc. Wash. Acad. Sci., July, 1905. 



251 



