Memoirs of the Geological Survey of Pakistan, Volume 8The Survey, 1969 |
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Page 4
... differs in being more involute and less inflated . exist with Paralcidia mimetica ( Spath ) ( 1928 , p . 86 , pl . X , fig . 6 ) Some resemblance in venter and whorl section also but differs in destails of ornamentation and whorl ...
... differs in being more involute and less inflated . exist with Paralcidia mimetica ( Spath ) ( 1928 , p . 86 , pl . X , fig . 6 ) Some resemblance in venter and whorl section also but differs in destails of ornamentation and whorl ...
Page 7
... differs in being more depressed . M. ( I. ) sphaeroidalis at 60 mm diameter has a whorl height of 43 % , whorl thickness 57 % and umbilical width 27 % . In ribbing style , whorl section the Nakus example is closely comparable with M ...
... differs in being more depressed . M. ( I. ) sphaeroidalis at 60 mm diameter has a whorl height of 43 % , whorl thickness 57 % and umbilical width 27 % . In ribbing style , whorl section the Nakus example is closely comparable with M ...
Page 8
... differs in dimensions and in having denser ribs at comparative diameter . The Nakus example is readily distinguished from other Choffatia species figured by Waagen ( 1875 ) and Spath ( 1928-33 ) from Cutch and by Noetling ( 1897 ) from ...
... differs in dimensions and in having denser ribs at comparative diameter . The Nakus example is readily distinguished from other Choffatia species figured by Waagen ( 1875 ) and Spath ( 1928-33 ) from Cutch and by Noetling ( 1897 ) from ...
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Common terms and phrases
ammonite bed ammonite fauna ammonites from Wam argillaceous limestone bed Bajocian Baluchistan Bathonian Belemnite shale bifurcating body chamber Chiltan limestone Choffatia Choffatia Correlation Cutch described specimen diadematus Waagen Dimensions disconformably Dolikephalites Fatmi figured by Waagen Harnai holotype Hunting Survey indet involute Jurassic age Kheraiceras Bomburites limestone and shale Locality.-Wam Tangi Loralai Lower Callovian ammonite Lower Cretaceous Lower Jurassic Macrocephalites Indocephalites Macrocephalus Zone Massive limestone Mazar Drik formation Mazar Drik limestone Middle Jurassic outline of whorl Paralcidia are reported Paralcidia dubia Spath Parona perlamellosus Spath Plate Pleurocephalites polyphemus primary ribs prorsiradiate pyritic argillaceous limestone Quetta ribbing style Sarwan area sequence shell side view soorkaensis Spath species specimen from Nakus specimens internal mould Stratigraphic Range.-Lower Callovian style and side subgenus Survey of Pakistan synonymy Takatu limestone thickness Umbilical diameter thin bedded limestone Tithonian trifurcate umbilical wall umbilicus ventral view Vredenburg 1909 Wam Tangi whorl section whorl side Whorl thickness Umbilical