Memoirs of the Geological Survey of Pakistan, Volume 8The Survey, 1969 |
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Page 5
... Umbilicus small , oval shape in septate portion enlarging rapidly on the body chamber and the umbilical seam , taking a right angle turn at the adapical end of the body chamber . Ribs rounded rather weak on internal mould , single and ...
... Umbilicus small , oval shape in septate portion enlarging rapidly on the body chamber and the umbilical seam , taking a right angle turn at the adapical end of the body chamber . Ribs rounded rather weak on internal mould , single and ...
Page 6
... 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 side . The ribs bifurcate and ...
... 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 side . The ribs bifurcate and ...
Page 8
... umbilicus is wide , and has a steep to vertical umbilical wall with a rounded umbilical shoulder . Two to three constrictions oblique to the ribs are present . The constriction at the adoral end suggest the beginning of the body chamber ...
... umbilicus is wide , and has a steep to vertical umbilical wall with a rounded umbilical shoulder . Two to three constrictions oblique to the ribs are present . The constriction at the adoral end suggest the beginning of the body chamber ...
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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