153 
DIENER : TRIAS OF THE HIMALAYAS. 
The two faunae are composed almost exclusively of Brackiopoda, 
Gastropoda and Lamellibranchiaia, but have not yielded one single 
ammonite. A Himalayan fauna of this facies was discovered 
in the Grey beds of Spiti by H. Hayden and A. v. Krafft, but is 
certainly of younger age. The scientific mission to southern China 
in 1898 under command of M. Leclere discovered the beds with 
Myophoria Szecheni/i Loczy near Sui-Longtien. By the expedition 
to Yunnan in 1S)03 the presence of two Upper Triassic horizons has 
been recorded near A-mi-chu and Yen-fen- chwang. The lower horizon 
corresponds to the bed with Myophoria Szechenyi, which in this section 
is associated with Daonolla indica Bittn. This association is a strong 
argument in favour of a ladinic or lower carnic age of the fauna of 
Chungtien. The second horizon is the equivalent of the Raibl beds 
or zone of Trachyceras aonoides. It has yielded the following species 
of ammonites : — 
Protrachyceras Thous Dittm. 
Trachyceras Suessii Mojs. 
Trachyceras austriacum var. tibetica Mojs. 
In the district of A-mi-chu the Triassic fossils are imbedded in 
limestones, shales and variegated sandstones, which have been com- 
pressed into several sharp folds. 
The northern borderland of the Indian Triassic province corresponds 
to the southern shore of the Angara continent (Suess). It must have 
been shifted considerably to the south since the close of the anthra- 
colithic epoch. No rocks of Triassic age have as yet been found 
beyond the Semenow range near the boundary of North-eastern Tibet 
and the Chinese territory of Kansu. 
The extension of the Indian marine Trias into the Malay Archipelago 
has been proved by the discovery of Triassic fossils in Wichmann's 
collections from the island of Rotti by Rothpletz.' But the researches 
of Voltz in Sumatra, Vogel in Borneo, Hirschi in Timor, G. Boehm 
in the islands of Serang, Savu and Misol, have carried the distribution 
of the distinctive faunae of the carnic and noric stages still further 
to the east and we.st. 
1 A. Rothjiletz : Die Poini Trias-und Jiuafonnation auf Timor und Rotti im 
Malayischen i^icliipeJ. Faloeontographicu, Vol. XXXIX, p. 89. 
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