Memoirs of the Geological Survey of Pakistan, Volumes 5-6The Survey, 1969 |
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Page 23
... umbonal area small and distinct , beaks small prominent , situated about one - third the length of shell from anterior extremity ; cardinal margin distinctly oblique , inclined posteriorly ; ligamental area can not be seen as both left ...
... umbonal area small and distinct , beaks small prominent , situated about one - third the length of shell from anterior extremity ; cardinal margin distinctly oblique , inclined posteriorly ; ligamental area can not be seen as both left ...
Page 30
... umbonal region is prominent and inflated . The specimens have larger dimensions than the holotype . The dimensions of the largest specimen are : length 42.0 mm . , height 28.0 mm . , thickness ( both valves intact ) 21.5 mm . , the ...
... umbonal region is prominent and inflated . The specimens have larger dimensions than the holotype . The dimensions of the largest specimen are : length 42.0 mm . , height 28.0 mm . , thickness ( both valves intact ) 21.5 mm . , the ...
Page 82
... umbonal area , Zinda Pir section , Drazinda shale , M. Eocene . Reg . No. IZ - 12 , holotype . Ostrea ( Liosterea ) drugense Iqbal , fig . 37 , interior left valve and umbonal area ; fig . 38 , exterior left valve ; Drug section ...
... umbonal area , Zinda Pir section , Drazinda shale , M. Eocene . Reg . No. IZ - 12 , holotype . Ostrea ( Liosterea ) drugense Iqbal , fig . 37 , interior left valve and umbonal area ; fig . 38 , exterior left valve ; Drug section ...
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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