310 P. Lake—Growth of the Indian Peninsula. 
For our present purposes the rocks of the Peninsula, under which 
term is included the whole of India south of the Indo-Gangetic 
plain, may be divided into three great divisions, viz. :— 
. Post-Gondwana. 
Gondwana. 
Pre-Gondwana. 
The Pre-Gondwana division includes the Gneissic, Dharwar, 
“Transition,” and Vindhyan series, and as fossils are absolutely 
unknown, we are unable to correlate these series with Huropean 
rocks. The Gondwana formation probably ranges from Upper 
Carboniferous to Tithonian or Portlandian; and the Post-Gondwana, 
which includes the marine beds of the coasts, the Deccan Trap, and 
the Tertiary and later beds, ranges from Upper Jurassic to the 
present day. 
