Memoirs of the Geological Survey of Pakistan, Volumes 5-6The Survey, 1969 |
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Page 12
... short , sharply convex ; anterior margin long , straight , inclined dorsally ; ventral margin long , gently convex ; posterior margin long , straight , inclined dorsally ; posterodorsal margin short , sharply convex ; ornamentation ...
... short , sharply convex ; anterior margin long , straight , inclined dorsally ; ventral margin long , gently convex ; posterior margin long , straight , inclined dorsally ; posterodorsal margin short , sharply convex ; ornamentation ...
Page 23
... short , convex ; anterior margin long , broadly concave ; antero - ventral margin short , broadly convex ; ventral margin long , oblique , inclined posteriorly ; postero - ventral margin larger and rounded ; posterior margin short ...
... short , convex ; anterior margin long , broadly concave ; antero - ventral margin short , broadly convex ; ventral margin long , oblique , inclined posteriorly ; postero - ventral margin larger and rounded ; posterior margin short ...
Page 60
... short , oblique ribs , which are retrocurrent anteriorly , there is a deep , narrow concavity in between the circumsutural rim and broad sinus , which bears a pair of crenulated threads and crenulations are connected by short vertical ...
... short , oblique ribs , which are retrocurrent anteriorly , there is a deep , narrow concavity in between the circumsutural rim and broad sinus , which bears a pair of crenulated threads and crenulations are connected by short vertical ...
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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