82 FOOTE : GEOLOGICAL STRUCTURE OF THE EASTERN COAST. 



Whether this triple grouping will fit in with the triple division made 



out by me in the Upper Gondwanas south of the 

 Not practicable. . ' . ,, ,, „ .-, 



Kistna, remains to be seen when all tne tossils 

 from both regions have been fully worked out ; but I think it is very 

 doubtful. From the preliminary examination of the fossils, Mr. King 

 and Dr. Feistmantel incline to consider the Ragavapuram shales as the 

 equivalents of both the Vemavaram group of the Guntur-Ongole region 

 and the Sripermatur group of the Madras region. Dr. Feistmantel 

 regards the Ragavapuram beds as equivalents also of the Utatur plant 

 beds of the Trichinipoly district. 



My present view on this subjeet is, that the Vemavaram shales are 

 not exactly the equivalents of the Sripermatur group, and therefore also 

 not exactly equivalent to the Ragavapuram shales, but are of rather 

 greater age, and represent the Golapilli group, and may therefore be 

 regarded as true marine equivalents of the typical BdjmaJidl beds of 

 Bengal. Dr. Feistmantel has, in his description of the flora of the Gola- 

 pilli beds, in the Palaeontologia Indica, 1 stated his belief that the Utatur, 

 Sripermatur, and Ragavapuram plant-beds are younger than the true Raj- 

 mahal beds. He groups the Vemavaram shales in the same category ; 

 but at the time he stated this, he was, owing to an unlucky confusion of 

 the collections from Sripermatur and Vemavaram, under the impression^ 

 strongly supported by the similarity of the two sets of shales, that both 

 came from the same region. 



Judging the case by the evidence of the fossil plant-remains, it 

 appears to me that the Vemavaram shales show a facies distinctly older 

 than that of the Sripermatur group, and contain a greater number of 

 characteristically Rajmahal plants than do any of the other plant-beds in 

 the peninsula, Mr. King's Golapilli sandstones excepted. This view is 



~ . „ , T , borne out by a comparison of the Golapilli plants 



Comparison or Vema- J L x l 



varam and Golapilli fos- as compared with those obtained from the Vema- 

 sus * 



varam shales. The list of Golapilli plants I take 



1 Ser. II, 3, p. 3. 



