•22 
DIENER : TRIAS OF THE HIMALAYAS. 
Although the correlation of tliose horizons has been the subject of 
many discussions, the learned authors who have examined the section of 
the Shalshal chfE, agree entirely regarding the actual sequence of the 
Lower Triassic beds. According to Noetling's' and Diener's observa- 
tions, this sequence is as follows, in descending order 2 :— 
9. Hard, splintery, nodular limestone (Niti limestone) 60 feet. 
8. Eartliy, grey limestone, shaly near base, with Rhynchonella 
Griesbachi and Sibirites Prahlada : 'A ft. 
7. Thin-bedded, grey limestone, with regular partings of shale, 
containing Flemingites Rohilla and Pseudomonotis himaica 
near top : 25 ft. 
6. (irey limestone, divided into two bands by a shaly parting 
No determinable fossils : 5 ft. 
5. Dark concretionary limestone, containing the main-layer of 
Meekoceras Markhanii and M. Varaha : 8 ins. 
4. Dark-blue shales, separated by a band of grey limestone. 
Unfossiliferous : 18 ft. 
3. Dark blue limestone, with Otocems Woodivardi and Ophiceras 
tibeticiim : 5 ins. 
2. Dark hard clay, with limestone concretions, containing very 
few fossils {Episageceras Dalailainoe, Proptychites Schei- 
bleri) : 1-| ft. 
1. Dark-blue limestone, main- layer of Otoceras Woodward/, and 
Ophiceras Sakuntala. Near top very rich in Pseudomonotis 
Griesbachi : 1 ft. 
Productus or Kuhng shales. Dark, thin-bedded shales, with 
partings of concretionary limestone. 
Of the section of Kiunglung, e.ij., on the southern slope of the Niti 
pass, our knowledge is less complete. 
1 F. Xoetling : Ueber das Alter der Otoceiasschichten von Rimkiu Paiar (Pain- 
khanda) im Himalaya. Neues Jnhrb. /. Miner, etc., Beilagebd, XVIII, 1904, p. .'541 ; 
Lethoea rnesozoica Bd. I. Asiatisclie Trias, 1905, pp. 128, 149. 
- Noetling's measurements, as given on pages 541 and 544 of liis meinuir on tlie 
age of the Otoceras beds of Riinkin Paiar, do not agree. On p. 541 the tliickness 
of unfossiliferous beds between beds 3 and 5 is estimated at 10 feet, wliereas it is 
estimated (more correctly) at 6 metres on page 544. The thickness of the Heden- 
strnemia beds is given as 20 feet on p. 341, whereas it is estimated at 10 or 12 metres 
on p. 149 of the Lethmi rnesozoica (Asiatische Trias, I. c). The higher ligures agree 
better with Griesbach's and niy own measurements. 
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