9^ 
DIENER : TRIAS OF THE HIMALAYAS. 
These fossils point to a carnic age of the beds from which they were 
derived. The actual section in the Trias of the Hop gadh differs, 
according to Griesbach {Memoirs, Geol. Surv. India, Vol. XXIII, 
p. 205), in no way from those of the Niti area. 
Above the limestone bed with Daonella indica there follows in the 
sections of the Shalshal and Bambanag cliffs a mighty series of dark, 
calcareous shales and shaly limestones, amounting to between 650 and 
800 feet in thickness. Cephalopods and bivalves occur throughout this 
series, but especially in the lower beds. Most of the fossils were 
collected near Lauka encamping ground on the way from the Uttar- 
dhura to the Girthi valley by Diener. The complex was originally 
designated " Daonella beds " by Griesbach, but the name " Beds with 
Halobia comata " appears to be more appropriate, since Daonella is 
replaced in those beds by Halobiw of the rugosa-gvoup. 
The following species of Brachiojwda and Lamellihranchiata were 
described by A. Bittner (1. c, p. 72) : — 
Sfiriferina shalshalensis Bittn. 
Retzia Schwageri var. asiatica Bittn. . 
Rhynckonella laucana Bittn. 
Halobia comata Bittn. 
„ fascigera Bittn. 
Avicula girthiana Bittn. 
Gassianella pi. sp. ind. 
The following species of Cephalopoda were quoted by E. v. Mojsisovics 
(I. c, p. 129) :— 
Pleuronautilus tibeticm Mojs. 
Jovites sp. ind. ex. afj. daci Mojs. 
Discotropites sp. ind. aff. Plinii Mojs. 
JuvnviU's cf. t'>)iklnensls Dien.' 
Anatomites bambanagensis Mojs, 
,, Eugenii Mojs. 
,, Caroli Mojs. 
Griesbachites Hanni Mojs. 
Hypocladiscites subaratus Mojs. 
Placites sp. ind. ex. aff. peraucto Mojs. 
„ polydactylus var. Oldhami Mojs. 
1 C Diener, Note sur deux especes d' Ammonites Triasiques du Tonkin, Bull. 
Soc. Geol. de France, 3, ser. XXIV, p. 882. 
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