30 WYNNE : TRANS- INDUS EXTENSION OF THE PUNJAB SALT RANGE. 



a beautifully compact or crinoidal white limestone, which rings like 

 a bell when struck. At the top of the group, sandstones are frequent 

 and dark shales may be found on various horizons. Fossils are numerous 

 throughout, though zones in which no organism can be detected are also 

 met with ; but unless these are magnesian or unusually massive, a few 

 paces will generally lead to fossiliferous rocks containing many of the 

 common organisms of the formation, such as Producta, Spirifer, Athy- 

 ris, StrepiorhyncJms, Terebrakila, Fenestella, Betepora, crinoids, corals, &c. 

 The lower beds usually contain many Bryozoa and further up Fusulina. 

 In the middle of the group, corals, Terebratula and Products, prevail with 

 many other forms, and among the upper beds Bellerophon and Goniatites 

 are characteristic. Upon more than one horizon I have found the un- 

 named fossil 1 of the Salt Range, a flattish organism of a few inches dimen- 

 sions, the sub-concave side showing a number of raised slightly-curved 

 septa, arranged nearly at right angles on each side of a midrib or depres- 

 sion. The other surface when preserved is correspondingly, but much 

 less deeply, corrugated and covered with very small pustules. The fossil 

 being composed of carbonate of lime is never, so far as I have seen, 

 found in a complete state, but only in fragments, weathered or broken, 

 and frequently so situated on a large surface of the rock that it cannot 

 be removed. It occurs of different sizes, as though the forms were those 

 of old and young specimens ; it is sometimes nearly a quarter of an inch 

 in substance, sometimes a thin film only, generally of a flattish slightly 

 curved form or rarely longitudinally folded nearly at a right angle. 

 This fossil occurs in both the lowest and the upper part of the middle of 

 the formation, probably elsewhere besides. In the top beds of the 

 formation close to the Bellerophon beds I have met with some fossil 

 bones or large fragments of fish spines. The formation is found in the 

 Chichali range, all along the Khasor ridge, and on the southern cliffs 

 of the Shekh Budin hill. 



6. The triassic Ceratite group — Is as usual to the east stratigraphic- 

 ally simply a superior part of the carboniferous formation. It always 



1 Dr. Feistmantel considers it to be Bellerophon. 



( 240 ) 



