56 CRETACEOUS ROCKS OF S. INDIA. [PaRT II. § 1. 



pebbles about an incb in diameter, and a fragment of stone probably 

 derived from some earlier formed portion of the 



Pebbles in limestone. 



formation, and re-embedded. Here also I noticed 



that some of the white veins, -which had been laid bare by weathering, 



exhibited eroded but still distinct calices of the coral composing them. 



It is worthy of remark, that while fragments of Pentacrinite stems occur 



in several cases embedded in the coral-reef lime- 

 Pentacrinites. 



stone, nowhere else throughout the Cretaceous series 



(excepting in one instance at the base of the Arrialoor Group) have I 



met with a vestige of these fossils ; or indeed with any species of the order 



Grinoidea, with the exception of some Marsupites in the Arrialoor Group. 



Again, about a mile to the North-east of Kauray, we meet with 



a prominent ridge of limestone, part of which pre- 



Kauray ridge. 



sents the characters of the coral-reef limestone, and 



part evidently belongs to the Gotatoor Group. The ridge which rises 



some 20 or 30 feet above the average level of the 

 Ootatoor. n t ^ , • • ^ i 



soit shales around it, runs at right angles to 



the general strike of the Ootatoor beds ; the limestone beds of the 



latter having been deposited around a ridge similar to that of Tripatoor, 



and concealing a great part of its surface. The coral-reef limestone 



is thus only exposed at its "Western extremity, where the Ootatoor 



beds have been removed by denudation, and where it rests apparently 



on som.e calcareous shales, the relations of which are by no means clear. 



It is full of corals, principally of various forms 



Corals abundant, n 4 , -t i • i t-v t . 



01 Astrceaace^ among which a Dimorphastrcea 



is very common, and which stand out prominently on the weathered 

 surface of the limestone, their lamellae, sharp and distinct, remind- 

 ing one of the silicified corals of the English Mountain limestone. 



The overlying limestone beds of the Ootatoor 

 Overlying beds. . , , ^ t • ^ 



Group, the mineral characters 01 which are quite 



local, and due evidently to their material being derived principally 



