Memoirs of the Geological Survey of Pakistan, Volume 8The Survey, 1969 |
From inside the book
Results 1-3 of 5
Page 4
... venter The whorl sides are gently convex converging towards an acute tricarinate venter . The umbilicus is narrow and the umbilical wall is gently inclined first than steeply towards the umbilical seam . The ornamentation consists of ...
... venter The whorl sides are gently convex converging towards an acute tricarinate venter . The umbilicus is narrow and the umbilical wall is gently inclined first than steeply towards the umbilical seam . The ornamentation consists of ...
Page 6
... venter and whorl sides . The umbilicus is narrow and has a vertical umbilical wall and sharply rounded umbilical shoulder . The primary ribs are rursiradiate on the umbilical wall and shoulder , recurving to prorsiradiate on the whorl ...
... venter and whorl sides . The umbilicus is narrow and has a vertical umbilical wall and sharply rounded umbilical shoulder . The primary ribs are rursiradiate on the umbilical wall and shoulder , recurving to prorsiradiate on the whorl ...
Page 8
... venter transversely and with slight weakening . Dimensions . Diameter 50.0 mm . Whorl height 16.0 ( 32 % ) Whorl thickness 15.5 ( 31 % ) Umbilical diameter 27.0 ( 54 % ) Remarks . In dense ribbing and presence of constrictions the ...
... venter transversely and with slight weakening . Dimensions . Diameter 50.0 mm . Whorl height 16.0 ( 32 % ) Whorl thickness 15.5 ( 31 % ) Umbilical diameter 27.0 ( 54 % ) Remarks . In dense ribbing and presence of constrictions the ...
Other editions - View all
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