A DESCRIPTION 



OF THE 



FOSSIL EOHINOIDEA 



OP 



WESTERN SIND. 



Fasciculus 2.— THE EANIKOT SERIES. 



I. Introductory Memarks on the Ranikot Series. 



The stratigraphical relations and the nature of the deposits included in the Eanikot 

 series of strata have been noticed in a former page*, and it is only necessary to remark 

 that the strata rest immediately on a trap which covers the Cardita-Beaumonti series. 

 The lovper part of the Eanikot series consists of soft sandstones, shales, clays with 

 gypsum and lignite, and pyritous shale. These freshwater strata are succeeded by 

 highly fossiliferous marine limestones, often brown in colour, interstratified with 

 sandstones, shales, clays, and ferruginous bands. Nummulites appear for the first 

 time in the succession in this series ; and there is a fine fossil Coral-fauna of 50 species. 

 The depth of the Eanikot series is 2000 feet ; and it is below the main Nummulitic 

 limestone, which belongs to the succeeding age or that of the Khirthar series. 



Although the nature of the fossil Echinoidea already described from beneath the 

 trap which underlies the Eanikot series does not give any more satisfactory evidence 

 than the fossil Corals regarding the age of their containing strata, still an Eocene facies 

 predominates over a Cretaceous facies in the forms of the Cardita-Beaumonti beds. 



It is evident that the Eanikot series is very low down in the Nummulitic series, 

 and, whilst it contains relics of a somewhat modified Cretaceous fauna, the Eocene facies 

 predominates. 



The specimens forwarded by H. B. Medlicott, Esq., F.E.S., the Superintendent 



* Page 4, fasciculus I. 



