Memoirs of the Geological Survey of Pakistan, Volumes 5-6The Survey, 1969 |
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Page 5
... bands . Claystone . - carbonaceous , with a thin band of gray , nodular limestone . Claystone . - light bluish gray , slightly carbonaceous with gray , medium - grained sandstone band . Sandstone . - gray medium - grained , grains ...
... bands . Claystone . - carbonaceous , with a thin band of gray , nodular limestone . Claystone . - light bluish gray , slightly carbonaceous with gray , medium - grained sandstone band . Sandstone . - gray medium - grained , grains ...
Page 23
... band ; ornamentation is strong , consists of spiral threads , axial ribs and the growth lines ; the whorls have concave ( towards apex ) bands posteriorly , occupying quarter of the whorl height , there are four spiral threads to the ...
... band ; ornamentation is strong , consists of spiral threads , axial ribs and the growth lines ; the whorls have concave ( towards apex ) bands posteriorly , occupying quarter of the whorl height , there are four spiral threads to the ...
Page 60
... bands , the first , second and third band from the posterior equally spaced , the interval being about 0.3 mm . , the interval between the third and the last band slightly narrow , about 0.2 mm . , the intervals between the four ribbon ...
... bands , the first , second and third band from the posterior equally spaced , the interval being about 0.3 mm . , the interval between the third and the last band slightly narrow , about 0.2 mm . , the intervals between the four ribbon ...
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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