a4 TRAPS AND INTERTRAPPEAN BEDS 



near EUichpoor, vvliicli a^Dpear to represent the Bagh beds^ Mr. Wynne 

 found freshwater shells, one of which, a Melania, is closely allied to M. 

 qtiadrilineata, Sow. 



Again, there are some strong resemblances between some of the 

 fossils of the Rajamundry intertrappeans and those of the cretaceous 

 beds of Trichinopoly,* resemblances quite as marked as those pointed 

 out by Mr. Hislop between the former and the nummulitic beds of 

 Sind. Exact identity can scarcely be expected, the Rajamundry band being, 

 I think, estuarine, while all the Trichinopoly beds are purely marine. It 

 is by no means impossible that the Rajamundry beds may have been 

 contemporaneous with the uppermost strata of the Arrialoor groupf of 

 Southern India. 



The evidence, it will be observed, is still far from conclusive, but 

 it appears highly probable that part, at least, of the traps are upper 

 cretaceous in age. It is even possible that the lower traps (with the inter- 

 trappeans of Nagpoor, the Nerbudda, Berar, &c.,) might be middle 

 cretaceous. The eruptions which produced them may have continued 

 throughout a long period of geological time, and the uppermost flows 

 of Bombay and Mahableshwar might even have been contemporaneous 

 with the oldest tertiaries. 



* Until the examination of these fossils by Di\ Stoliczka, now in progi'ess, be completed, 

 it is impossible to say if any identifications can be made. 

 t Mem. Geol. Surv. Ind., Vol. IV, p. 127. 



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