84 EOOTE : GEOLOGICAL STRUCTURE OP THE EASTERN COAST. 



Golapilli beds. If the large Macrotaniojrteridce are wanting at Vema- 

 varam, per contra we have a far larger development of the pre-eminently 

 Rajmahal genus Dictyozamites than at Golapilli or anywhere else out 

 of the Rajmahal hills. The Vemavaram Dictyozamites may have to 

 yield the palm in point of mere size to some of the specimens from 

 Amrapura, in the Rajmahal hills, figured by Oldham and Morris in plate 

 XXIV of Series II of the Palseontologia Indica ; but several of the 

 fronds I collected (at Vemavaram) were in every other respect far more 

 perfect, and quite as beautifully preserved. Although I cannot accept 

 Dr. Feistmantel's and Mr. King's views, that the Vemavaram shales 

 are the exact equivalents of the Ragavapuram and Sripermatur shales, 

 I quite agree to their idea of the equivalency of the two last named 

 groups, and regard them as younger than both the Golapilli and Vema- 

 varam beds. 



The most characteristic plants of the Sripermatur group are Ptilo- 

 phyllum acidifolium and cutcliense, and a conifer that agrees with none 

 as yet figured from the typical Rajmahal beds. Angiopteridiwm spat/w- 

 latum is also a by no means uncommon plant at Sripermatur, and it can- 

 not be reasonably contended that the Sripermatur and Vemavaram groups 

 a^ree in the facies of the fossil plants they contain, but rather that they 

 differ considerably, more so, indeed, than do the Vemavaram and the 

 Utatur plant-beds. 



No division of the members of the Rajmahal beds in the Ongole and 

 Kandukur groups was found practicable. 



CHAPTEK V.— CUDDALORE (RAJAHMUNDRY) SANDSTONES. 



The rocks to which the above title is applicable, if they occur at all 



within the Guntur-Ongole region, are developed 

 Ippatam conglomerate. 



but to a very small extent, and only in one spot, 



close to the Kistna. This one spot lies near the village of Ippatam, 



4^ miles south-by-east of the Sitanagaram end of the great anicut. 



Here occurs a small patch of immensely coarse conglomerate, with 



( 84 ) 



