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Page 12
... inequilateral , shell moderately inflated , left valve larger , more convex than the
right one which is somewhat flattened ; margin smooth , regular , anterodorsal
margin short , sharply convex ; anterior margin long , straight , inclined dorsally ...
... inequilateral , shell moderately inflated , left valve larger , more convex than the
right one which is somewhat flattened ; margin smooth , regular , anterodorsal
margin short , sharply convex ; anterior margin long , straight , inclined dorsally ...
Page 17
1 ) Description : Shell small , thick , ovoid , higher than wide , moderately convex ;
shell wall thin , umbonal ridge short ; beaks strongly convex , incurved ; slightly
prosogyrate ; margin regular , gently crenulated ; antérodorsal margin short ...
1 ) Description : Shell small , thick , ovoid , higher than wide , moderately convex ;
shell wall thin , umbonal ridge short ; beaks strongly convex , incurved ; slightly
prosogyrate ; margin regular , gently crenulated ; antérodorsal margin short ...
Page 40
It has a transversely oval shell but the antero - dorsal margin is distinctly convex ;
a little portion of ventral margin , is convex in its anterior region but a major
portion of it is straight in its posterior region ; the umbonal ridge is not very
prominent ...
It has a transversely oval shell but the antero - dorsal margin is distinctly convex ;
a little portion of ventral margin , is convex in its anterior region but a major
portion of it is straight in its posterior region ; the umbonal ridge is not very
prominent ...
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Common terms and phrases
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
Bibliographic information
| Title | Memoirs of the Geological Survey of Pakistan, Volumes 5-6 Memoirs of the Geological Survey of Pakistan, Geological Survey of Pakistan Memoirs of the Geological Survey of Pakistan: Palaeontologia Pakistanica |
| Contributor | Geological Survey of Pakistan |
| Publisher | The Survey, 1969 |
| Original from | the University of Michigan |
| Digitized | 14 Feb 2008 |
| Export Citation | BiBTeX EndNote RefMan |