34 MIDDLEMISS: GEOLOGY OF HAZARA AND BLACK MOUNTAIN. 



so rich in fossils as those of Changla Gali, yet we found in 

 them — 



Per isp h inctes freg uens. 

 Belemnites (fragments). 

 Inoceramus. 

 Corbula. 



Referring to the Darwaza-Kas near Doonga Gulee, Wynne also 

 writes 1 : " Here the Spiti shales contain — 

 Ammonites, 



Inoceramus, 



Belemnites (uncanaliculate casts). 



Pecten." 



In the Sha-ala-ditta neighbourhood Wynne found 3 — 

 Trigonia ventricosa (determined by Dr. Feistmantel). 

 T, Costata. 



in a " marked rusty zone enclosing small grains of quartz which 

 give a rough appearance to the surface of the rock." 

 Again, in the same neighbourhood he found 3 — 



T, ventricosa. 

 Ammonites. 



Gryphcea* 

 Belemnites. 



There is sufficient evidence from the above to make a very 

 strong case for the Jurassic age of the Spiti shales: although the 

 fossils are not at all well preserved, nor worth collecting on their own 

 account. 



I was unable to improve upon this collection. A great many 

 specimens were obtained chiefly by Sub-Assistant Hira Lai on the 

 southern face of Sirban and near Changla Gali ; but, beyond confirm- 

 ing the generalities of my predecessors, nothing more was to be made 

 out from the poorly-preserved specimens, which need the eye of a 

 specialist to recognise them with anything like certainty. 



1 Rec. G. S. of I., Vol. VII, 1874, p. 73. 



2 Ditto, Vol. XII, 1877, p. 129. 



3 Ditto, Vol. X, 1877, P. 125. 



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