253 WYNNE : GEOLOGY OF KUTCH. [PAET II. 



several miles through the country. Resting directly upon these is a 

 very irregularly deposited zone of variegated friable sandy shales, be- 

 tween the laminae of which a variety of dicotyledonous leaves are 

 locally abundant. 



North-west of Bayr these beds were seen to pass upwards by 

 yellow faintly mottled sandy rock underlying a 6-foot lateritic band into 

 the yellow rags and calcareous oyster grits of the overlying group, 

 while they rest immediately upon the upper beds of the nummulitic 

 zone. 



Advantage was taken of the intervention of this arenaceous and shaly 



band to mark the distinction between the nummu- 

 Arenaceous group, 



litic and overlying fossiliferous group. It exhibits 



many internal irregularities of deposition, has an inconstant thickness, 



and in some places suddenly disappears, being absent over most 



of the ground hitherto described. 



The open nummulitic country north and east of Bayr is traversed 

 by steep rocky nullahs exposing only a few of the upper beds, which 

 with wide undulations overspread the ground j they afford, however, 

 good localities for collecting fossils, from which the following were 

 obtained : Conoclypeiis Flemingii, a S^ondylus, Vulsella legumen, ScMzaster 

 BelucJiistanensis, Breynia carinata, a Crab, a Belpliinula, Nwnmulites 

 exponens and fragments of corals of the Isis group, hitherto found only 

 at Bayr. 



Rocks higher than the surrounding ones form a small patch on the 

 river bank near Karray, which gives the following: 



Karray. _ J > a o 



succession : — 



5. Detrital rock, uuramulitio debris, unconformable. 



4. Dark-brown ferruginous soft sandstone with thin pebbly parting 



at base. 

 3. Pale-greenish, fine sandy calcareous mudstone passing down into — 

 2. Pale-greenish clay shale containing Nummulina ? Pecten-lika shells, 



square bodies ? palatal teeth of fish. 

 1. Nummulitic rocks — coral zone. 



( 253 ) 



