MISCELLANEOUS NOTES. 



421 



of Keera and Jooria in the theory of deep and shallow water having existed 

 in the two latitudes. 



Anyhow you could not want a better hunting ground for the Cutch upper 

 Callovian, Oxfordian and Kineridge fossils than is to be found in this 

 Ellipse. 



J. H. SMITH. 



Bhuj, 'iQth March 1913. 



( Where Ammonites are named in the above, it should be understood that their 

 identity is not yet established. They merely appear to Mr. F. H. Stone and 

 myself to ayree with those described and illustrated by Dr. Waayen.) 



No. XXXVI.— CUTCH AMMONITE BEDS. 



Writers on Cutch Palaeontology have followed Dr. Stoliczka's classifica- 

 tion of beds. Summarized, it comes to this — 



Umia 



No. 

 rNo. 



Trap Rocks. 



1 with Crioceras 



L 



Katrol 



Charee 



Putchum. 



No 

 No. 



)No 



6 



7 



8. 



9 



10 

 11 



...=Aptian 

 ...=Barremian 

 ...z=Neocomian... ) 

 ...=Kimerid8-e... ( ^ ^^^ 

 ...=!5equanian.. 

 ...=Oxfordian.. 

 ...=CalloTian .. 

 ...=Callovian .. 

 ... = Callovian .. 

 ...=Bathonian.. 



.3,000 feet. 



f 



50 

 2.5 



1,000 



.500 

 500 



Cycadacese 



Per. eudicliotomus ... 



Phyll. ptychoicum ... 



Steph. maya ... 



Asp. babeamim 



Pelt, athleta ... 



Per. anceps ... 



Steph. macrocephalam 



0pp. serriger 



Trigonice. CorbulEe, Cucullece=Bathonian. 

 Mr. Vredenburg (Sum. Geo. Ind.) has given the above depths. What 

 strikes one at first sight is the great disparity in the " Zoning ": Why 

 should Athleta beds of 2-5 feet have as great a standing as the 500 feet of 

 No. 10. Probably with the modern recognition of more numerous zones, 

 an expert could sub-divide several of these beds into more minute divisions. 

 I should fancy from what I saw of it that the No. 9 bed as exposed at 

 Keera might well be found to consist of definite zones of various forms of 

 Stephanoceras . 



I do not know where the line between the Umia and the Katrol beds is 

 drawn. Umia beds are classed as Cretaceous, Katrol as Jurassic. Waagen 

 is of opinion that the higher beds which here lie under the stratified traps 

 are cretaceous : but as yet the few cretaceous fossils found come only from 

 Umia, some 50 miles W. N. W. of Bhuj. Now between No. 6 and No. 

 lies a very great depth of beds — mainly flaky shale below, and sandstone 

 slabs and rock above. To cross this extent of Katrol and Umia 

 beds, you drive 11 miles along the Bhuj-Mandvi road, pretty well at 

 right angles to the strike ; and as you go the exposed rocks are all dipping — 

 more or less — to the south : and the road is fairly level. The 6th milestone 

 is just at the upper edge of Belt 6 : and the 17th marks the change to Belt 

 No. 0. And Belt No. 5 does not exist here : so if you allow Belt 4,500 feet 

 depth, the eleven miles carry you through only 3,500 feet of uptilted strata. 

 Descending from No. 4 to No. 9 the beds are mainly of shales with thin 

 sheets of rock of various natures laminated among them. These harder 

 beds serve to mark the distinctions of the lower Ammonite beds Some 

 kinds of Ammonites managed to struggle through from one bed to the next, 

 but the majority of species are confined each to its own layer. The Katrol 

 beds proper (No. 4) along the Charwar out-crop lie flat on the Dhosa Oolite 

 (No. 6). [No. 5 is a local bed, and its claim to rank as intervening here 



