10 DIENER : GEOLOGICAL STRUCTURE OF CHITICHUN. 



ravine on the eastern slope of Chitichun No. I, to the west-north- 

 west of Lochambel-ki-chak encamping ground, has yielded the inter- 

 esting triassic fauna, which has been described in Pal. Indica, ser. 

 XV, Vol. II. 



Hallstatt fossils. — Like the rocks of upper triassic age, to the 

 east of the Balchdhura, this crag differs widely from the normal 

 triassic sediments in the main region of the Central Himalayas, and 

 represents the Hallstatt facies in the Indian triassic province. Its 

 fauna is composed of the following species of cephalopoda :— 



Orthoceras sp. ind. 

 Dannbites kansa, Diener. 



,, am.bika, Diener, 



Sibirites pandya, Diener. 

 Aspidites kossmati, Diener. 

 Monophyllites confucii, Diener. 



., pradyumna, Diener. 



„ hara, Diener. 



- „ kingi, Diener. 



„ pitamaha, Diener. 



„ nov. sp. ind- ex. aff. sphaerophylla, Hauer. 



Xenaspis nov. sp. ind. 



„ middlemissi, Diener. 

 Procladiscites Yasoda, Diener. 

 Gymnites ugra, Diener. 

 Sturia mongolica, Diener. 



Since the publication of my Memoir on the Cephalopoda of the 

 Himalayan Muschelkalk (Pal. Indica ser. XV, vol. II. pt. 2), Waagen's 1 

 most important work on the ceratite formation of the Salt Range has 

 been published, which has thrown new light on a number of geological 

 and palaeontological questions relating to the Indian trias. I had 

 come to the conclusion that, judging from its general zoological 

 character, the fauna of the triassic limestone of Chitichun can only 

 be looked upon as a Muschelkalk fauna, but that the Muschelkalk 

 types, which predominate in numbers, have all attained a stage of 

 development pointing to a lower horizon than the main mass of the 



* W. Waagen— Fossils from the Ceratite-Formation Pal. Indica, ser. XIII Salt Range 

 Fossils, Vol. II, 1895. 

 ( 10 ) 



