Memoirs of the Geological Survey of Pakistan, Volume 8The Survey, 1969 |
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... figured which according to Arkell seems to have come from the lower part of Mazar Drik formation . A similar Macrocephalites fauna is reported by Vredenburg ( 1909 ) from his " polyphemus " limestone ( thin bedded limestone and shale ...
... figured which according to Arkell seems to have come from the lower part of Mazar Drik formation . A similar Macrocephalites fauna is reported by Vredenburg ( 1909 ) from his " polyphemus " limestone ( thin bedded limestone and shale ...
Page 6
... figured by Waagen ( 1875 ) in its evolute shell , depressed whorl section and coarse ribbing . At comparative diameter Waagen's specimen is more evolute and inflated than the described form . It also resembles the small specimen of M ...
... figured by Waagen ( 1875 ) in its evolute shell , depressed whorl section and coarse ribbing . At comparative diameter Waagen's specimen is more evolute and inflated than the described form . It also resembles the small specimen of M ...
Page 8
... figured by Waagen ( 1875 ) but 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 ...
... figured by Waagen ( 1875 ) but 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 ...
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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