Memoirs of the Geological Survey of Pakistan, Volumes 5-6The Survey, 1969 |
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Page 22
... thread is added between he posterior primary line and the posterior suture on the fourth whorl and on the next whorl one more intercalary thread develops between the two primary lines . The spiral threads cross the axial riblets ...
... thread is added between he posterior primary line and the posterior suture on the fourth whorl and on the next whorl one more intercalary thread develops between the two primary lines . The spiral threads cross the axial riblets ...
Page 23
... threads cover the base as far as the end of the canal ; no spiral or- ramentation ; no growth lines ; last whorl ... threads , axial ribs and the growth lines ; the whorls have concave ( towards apex ) bands posteriorly , occupying ...
... threads cover the base as far as the end of the canal ; no spiral or- ramentation ; no growth lines ; last whorl ... threads , axial ribs and the growth lines ; the whorls have concave ( towards apex ) bands posteriorly , occupying ...
Page 60
... threads bisected by fine intercalary thread ; aperture narrow , apertural notch deep with parallel margins colomella concealed , Turris ( Gemmula ) drugensis Iqbal is distinguished by its shape , the typical whorl profile , being ...
... threads bisected by fine intercalary thread ; aperture narrow , apertural notch deep with parallel margins colomella concealed , Turris ( Gemmula ) drugensis Iqbal is distinguished by its shape , the typical whorl profile , being ...
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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