1^2 GRIESBACH : GEOLOGY OF THE CENTRAL HIMALAYAS. 



most convenient to class it here. It contains fossils, amongst which 



rhaetic types mingle with liassic, and conspicuous amongst them are 



the Starhemberg types, Terebratula horia Sss and Rhynchonella 



jissicostata Sss. 



As I have said already, this great sequence of rhaetic and lias 



rests perfectly conformable on the upper tria >. 

 Trias of Shal-Shal. . rr > 



between which and the lower rhaetic there is no 

 very marked boundary. The system of beds below the above series 

 is in descending order as follows : — 



Thickness 

 Ft. In. 



Upper 144. Compact brown (liver-coloured) limestone ; beds are nearly 

 Trias. of equal thickness, about 12 inches, and are occasionally 



separated by greenish-grey shales. Numerous bivalves, 

 closely allied to Cordis mellingi Hau. var. . . . 152 o 



143. Liver-coloured brown limestone, alternating with greyish- 

 green shales, containing — . . . . . . 29 O 



Cordis mellingi Hau. var. 

 ' Orthoceras sp. 

 142. Earthy limestone with shaly partings .... 228 o 



141. Shaly limestone alternating with earthy shales, containing 



Spirifer lilangensis Stol. var. . . . . . 30 o 



140. Shaly limestone and shales with hard concretionary limestone 22 o 

 139. Greenish-grey shales . . . . . . .46 



138. Limestone with chert nodules . . . . . .16 



137. Flaggy limestone . . . . . . • • 5 ° 



136. Friable greenish-grey shales, weathering brown, alternat- 

 ing with flaggy limestone t . • . . . .310 



135. Marly friable shales . . . . . . • 5 o 



134. Hard grey limestone . . . . . . .40 



133. Hard grey limestone, weathering brown, rather silicious, 

 containing concretions which yielded — 

 Opts globata Dim. 

 Acrochordiaras spinescens Hau. 

 Tropites ehrlichi Hau. var. feistmanteli n. sp. 

 Balatonites himalayanus Blfd. 

 132. Grey earthy limestone beds, with marly and shaly part- 

 ings, weathers brown . . . . • . 



131. Same as bed above, containing Spirigera sp. Total thick- 

 ness of beds 131, 132 and 133 ..... 275 o 



130. Greyish-green micaceous shales with a few indistinct plant 



impressions ........ 160 o 



129. Shaly grey earthy limestone . . . . . . 38 o 



Carried over . 985 



( M2 ) 



