tOWER TRIAS : JOHAR. 
25 
sections S. E. of Muth. The following Cephalopoda have been collected 
by Griesbach and Diener': — 
Pleuronautilus Dieneri Kraft't. 
Xenodiscus nivalis Dien. 
Piirusha Dien. 
Flemingites Rohilla Dien. 
Proavites Sisupala Dien. 
Pseudomonotis himaica Bittn. and Ps. decidenft Bittn. have also been 
quoted from bed 7 by Bittner, but their exact layer has not been as- 
certained. We do not know if they are distributed throughout the 
entire thickness of this subdivision or restricted to its topmost bed, as 
in the section at Lilang in Spiti. 
For this upper division of the Lower Trias in Painkhanda the name 
" Subrobustus beds " was proposed by Diener in 1895, because he consi- 
dered his type-specimen of Ceratites subrobustus { = Keyserlingites Dieneri 
Mojs.) to have been derived from its topmost layers, in which Fleming- 
ites Rohilla is the chief leading fossil. But this specimen was probably 
extracted from a detached block of the overlying Muschelkalk, since 
H. Hayden and A. v. Krafft have obtained numerous examples of 
Keyserlingites (Durgaites) Dieneri and its allies from the Muschelkalk, 
but not a single specimen from the Lower Trias. In the face of such 
convincing evidence we are justified in claiming the Indian group of 
Ceratites subrobusii (Durgaites) as a subgenus of Muschelkalk, not of 
Lower Triassic, age. 
The name " Subrobustus beds " must consequently be discarded and 
replaced by the name " Hedenstroemia beds," which was introduced 
for this rock-group (horizon of Flemingites Rohilla) by A. v. Krafft. 
c. Eastern Johar. 
The presence of marine sediments of Lower Triassic age in Eastern 
Johar has been recorded by C. L. Griesbach and by T. D. La Touche 
in several sections of the Dharma and Lissar valleys. 
1 To this list Hedenstroemia Mojsisovicsi Dien. has been added by Noetling 
{Lethoea mesozoica, I. c, p. 149), but the specimens have not been found among the 
Lower Triassic materials belonging to the Geological Survey. 
( 226 ) 
