Memoirs of the Geological Survey of Pakistan, Volume 8The Survey, 1969 |
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Page 5
... bifurcating from near the umbilical and ventral shoulders . shale . Holotype . - G . S. P. B. 636 . Material . - One Specimen ( internal mould ) . Horizon . From a pyritic argillaceous limestone bed above the Chiltan limestone and below ...
... bifurcating from near the umbilical and ventral shoulders . shale . Holotype . - G . S. P. B. 636 . Material . - One Specimen ( internal mould ) . Horizon . From a pyritic argillaceous limestone bed above the Chiltan limestone and below ...
Page 6
... bifurcate and trifurcate . Some of the trifurcating ribs behave as intercalatory extending to about 2 / 3rd of the whorl side and merging towards the main bifurcating ones . All the ribs are prorsiradiate on the upper half of whorl side ...
... bifurcate and trifurcate . Some of the trifurcating ribs behave as intercalatory extending to about 2 / 3rd of the whorl side and merging towards the main bifurcating ones . All the ribs are prorsiradiate on the upper half of whorl side ...
Page 8
... bifurcating from the middle or slightly above , on the whorl side . In addition a few short inter - calatory ribs are located which either merge to form trifurcation or remain independent . All the ribs cross the venter transversely and ...
... bifurcating from the middle or slightly above , on the whorl side . In addition a few short inter - calatory ribs are located which either merge to form trifurcation or remain independent . All the ribs cross the venter transversely and ...
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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