Memoirs of the Geological Survey of Pakistan, Volumes 5-6The Survey, 1969 |
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Page 29
... ornament , the shell is slipper - like in general appearance , the anterior margin is very broadly convex ; the posterior margin is straight ; ornament consists of granulose radial ribs with wider intervals and bifurcated along ventral ...
... ornament , the shell is slipper - like in general appearance , the anterior margin is very broadly convex ; the posterior margin is straight ; ornament consists of granulose radial ribs with wider intervals and bifurcated along ventral ...
Page 34
... ornament well - preserved , consisting of distant concentric threads ; umbones sharply pointed and prosogyrous . The dimensions are : length 14.0 mm . , height 17.5 mm . ; thickness ( both valves intact ) 8.2 mm . Further distribution ...
... ornament well - preserved , consisting of distant concentric threads ; umbones sharply pointed and prosogyrous . The dimensions are : length 14.0 mm . , height 17.5 mm . ; thickness ( both valves intact ) 8.2 mm . Further distribution ...
Page 60
... ornament on the body whorl corresponds with that of the spire in the posterior part , the convex portion of the base bears ; two more threads bisected by fine intercalary thread ; aperture narrow , apertural notch deep with parallel ...
... ornament on the body whorl corresponds with that of the spire in the posterior part , the convex portion of the base bears ; two more threads bisected by fine intercalary thread ; aperture narrow , apertural notch deep with parallel ...
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Common terms and phrases
abapertural view aperture appears Arch Archiac & Haime band broadly Chharat consists convex Corbula Cossmann & Pissarro Cotter Cretaceous Description Deshayes designation differs dimensions District D. G. Khan Domanda shale dorsally Drazinda shale Drug section exterior left valve Family fauna feet figured Formation forms fossil Further distribution gastropod Genus Geol geology Ghazij fm gray Group height holotype India intervals Iqbal Italy Jhalar Kohat Lamarck larger length Limestone lines Linne Locality Lower Eocene margin Middle Eocene monotypy ornament Ostrea outline pakistanica Eames Paleocene Paris pelecypod PLATE pointed posterior preserved prominent Quetta Rakhi Nala Range Recent Remarks ribs right valve rounded Shahrig shell short similar slightly soriensis Eames specimen spiral Surv suture thick thin threads Type number.-Specimens type occurrence Type species UCLA umbonal Upper ventral Vredenburg West Pakistan whorls Zinda Pir section