Memoirs of the Geological Survey of Pakistan, Volumes 5-6The Survey, 1969 |
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Page 30
... pointed dor- sally ; rounded and compressed ventrally ; almond - shaped in general appearance ; shell wall thick ; equivalve ; inequi- lateral ; umbonal area large , prominent and inflated ; beaks small , distinct , almost terminal ...
... pointed dor- sally ; rounded and compressed ventrally ; almond - shaped in general appearance ; shell wall thick ; equivalve ; inequi- lateral ; umbonal area large , prominent and inflated ; beaks small , distinct , almost terminal ...
Page 34
... pointed and prosogyrous . The dimensions are : length 14.0 mm . , height 17.5 mm . ; thickness ( both valves intact ) 8.2 mm . Further distribution in W. Pakistan . - Lower Eocene of Saidpur ( Sind ) ; Zinda Pir , Rakhi Nala ( D. G. ...
... pointed and prosogyrous . The dimensions are : length 14.0 mm . , height 17.5 mm . ; thickness ( both valves intact ) 8.2 mm . Further distribution in W. Pakistan . - Lower Eocene of Saidpur ( Sind ) ; Zinda Pir , Rakhi Nala ( D. G. ...
Page 36
... pointed ; dorsally broad and somewhat tapering ventrally , higher than long ; equivalve ; inequilateral ; umbones pro- minent , situated far forward at less than a quarter of the length of shell ; beaks small , distinct , pointed ...
... pointed ; dorsally broad and somewhat tapering ventrally , higher than long ; equivalve ; inequilateral ; umbones pro- minent , situated far forward at less than a quarter of the length of shell ; beaks small , distinct , pointed ...
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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