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Page 22
An intercalary 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 ...
An intercalary 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
... narrow depression , and bears a smooth , narrow band covering the entire
sutural area ; sculpture consists of about five smooth . axial threads with sharp
pointed ends , broad in the middle part , slightly retrocurrent , with equal ratio of
width ...
... narrow depression , and bears a smooth , narrow band covering the entire
sutural area ; sculpture consists of about five smooth . axial threads with sharp
pointed ends , broad in the middle part , slightly retrocurrent , with equal ratio of
width ...
Page 59
... thick , crenulated thread ; ornament strictly spiral ( no axial ornament ) consists
of spiral bands and fine threads , on the slope of the spirewhorls ( occupying their
posterior half ) there are about six fine thread with intervals narrower to their ...
... thick , crenulated thread ; ornament strictly spiral ( no axial ornament ) consists
of spiral bands and fine threads , on the slope of the spirewhorls ( occupying their
posterior half ) there are about six fine thread with intervals narrower to their ...
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abapertural view aperture appears Arch Archiac & Haime band broadly Chharat consists convex 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 Miocene monotypy number.—Specimens Nummulites 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 specimen spiral suture thick thin threads Type number Type number.-Specimens type occurrence Type species UCLA umbonal Upper Vredenburg West Pakistan whorls Zinda Pir section