94 WYNNE : GEOLOGY OP THE SALT RANGE IN THE PUNJAB. 



upper strata are again sandy ; or light -coloured sandstones even^ among 

 whieli are intercalated coaly shales and argillaceous beds, reappear^ one 

 Different sections in thick sandstone band being crowded with a globose 

 different places. species oi Better ophon. The sections differ much in 



different places j occasional sandstone bands may occur anywhere, and not 

 unfrequently the solid grey limestone has been found directly overlying the 

 lavender clays at the top of the sandstone group below. The limestones 

 vary in colour from grey to black, and several of the magnesian bands are 

 of a warm yellow colour. The beds are more commonly compact than 

 crystalline and are sometimes crinoidal, chert layers and nodules being in 

 places very common. 



Dr. Fleming has sub-divided these rocks into three groups, the middle 



one of which he distinguishes as micaceous, fine- 

 Fleming's and Theo- • i n -i i • • ^ ^ ^ e 

 bald's three-fold sub- grained, fissile sandstone, alternating with beds ot 



dark bituminous shale. "Whether such a divisio^i 



could be carried out or not Trans-Indus seems doubtful, and as no such 



grouping has been found to characterise the Cis -Indus carboniferous 



formation, it is very probable that both Dr. Fleming and Mr. Theobald, 



in forming their triplicate classifications of the beds, took the main part 



of this formation for their two lowest groups, and made their third of 



the triassic beds. 



These writers also allude (the latter with much doubt) to the 



occurrence of both Ceratites and Orthoceratiles in 



Their allusion to 0^- i -r-, -n^i ■ • j • ^ 



thoceratites and Cera- these beds, and Dr. Fleming gives a drawing 



^*'^^*- of a piece of rock in which Ceraf.ites and Orl/io- 



ceratites occur together. Mr. Theobald had never seen an Orihoceratlte 



along the range, but suggested that parts of Belemnites might have 



been taken for them. The fact is that both of these forms do occur in 



the triassic limestones, the Orthoceratites being, however, rare, and the 



forms figured in Fleming's plate are not from the carboniferous, but 



were recognised by Dr. Waagen as from the triassic beds above. 



The CeraiUes, which are most of them new, and all different from 



( 94 ) 



