526 PROCEEDINGS OF THE GEOLOGICAL SOCIETY. [JllTte 17, 



Among the first (those brought by Mr. Atkinson) there was one 

 small fragment of an undoubted Turrilite ; and it was therefore with 

 no small interest that I opened Dr. Jerdon's collection and found in 

 it specimens of Ammonites and Baculites, together with other dis- 

 tinctive fossils. 



It was thus conclusively established that these sandstones were 

 really, as I had always suspected, of Upper Cretaceous age. 



I shall not dwell on the immense importance of this result, as 

 bearing on Indian geology ; it will be obvious to all who have 

 made themselves acquainted with the results hitherto published; 

 and to make it clear to others would require a much more lengthened 

 explanation than could now be given. 



I shall simply give a list of genera, and a few species, which have 

 been distinguished in the small collections we now have, and hope 

 soon to be able to obtain better and more complete data. I have 

 had the valuable aid of Dr. Stoliczka in going over these fossils. 



Ammonites. Turritella Pondicherriana, Forbes. 



Turrilites. , two species. 



Baculites. Vermetus. 



Pterocera, very near P. cme/ulata, Trochus. 



Zekeli, from Gosau. Turbo. 



Tritonium loricatum, Sow. Cynulia decurata, Sow. 



— — sp. (?). , two species. 



Fusus Dupinianus, D 1 Orb. Bulla, or Ovula. 



, four species. Terebratula, very near T. arabilis. 



Eostellaria carinata (?). , very near T. tamirandus, Sow. 



granulata, Sow. Rhynchonella, two species. 



palliata, Forbes. Gastrochasna. 



Pleurotoma subtilis, ZeJceli. Pecten, two species. 



, near P. costata, Sow. Janira, sp. 



Voluta septemcostata, Forbes. Ostrea. 



Catndeo, Forbes. Plicatula. 



Mitra cancellata, Sow. Spondylus tenuistriatus, Sow. 



Cyprsea, two species. Anomia. 



Eulima. Cardium, two species. 



Natica lyrata, Sow. Lima Heriana, D' Orb. 



-■ pagoda, Forbes. , sp., probably L.parallela, d'Orb. 



Cerithium scalarioideum, Forbes. Echinoconus. 



, probably C. provinciate, Sow. Cidarites. 



, a species not yet published, but Toxaster. 



which occurs at Gosau. Ananchytes. 



It is certain that these rocks extend considerably to the east, 

 beyond the parallel of Cherra Poonji. And it is not improbable 

 that a large area in Munnipore and Burmah, hitherto supposed to be 

 of Tertiary age, will prove on closer examination to be of the same 

 Upper Cretaceous age as the rocks now referred to. 



Among the fossils from the Nummulitic Limestone, most of which 

 were imperfect, were 



Natica longispira, IP Arch. Pecten, probably P. Fauvei, D'Arch. 

 Cypraea depressa, Sow. Nummulites Beaumontii, B'Arch. 

 Oliva, probably d. virginea, D'Arch, obtusus, Sow. 



