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The ornamentation consists of weak , broad ribs which are more distinct on the
upper half of whorl side towards the venterolateral margin . Some ribs bifurcate
from near the umbilical shoulder . The ribs become much weak towards the
adoral ...
The ornamentation consists of weak , broad ribs which are more distinct on the
upper half of whorl side towards the venterolateral margin . Some ribs bifurcate
from near the umbilical shoulder . The ribs become much weak towards the
adoral ...
Page
Ribs rounded rather weak on internal mould , single and bifurcating from near the
umbilical and ventral shoulders . Holotype . - G . S. P. B. 636 . Material . - One
Specimen ( internal mould ) . Horizon . - From a pyritic argillaceous limestone
bed ...
Ribs rounded rather weak on internal mould , single and bifurcating from near the
umbilical and ventral shoulders . Holotype . - G . S. P. B. 636 . Material . - One
Specimen ( internal mould ) . Horizon . - From a pyritic argillaceous limestone
bed ...
Page
The primary ribs are rursiradiate on the umbilical wall and shoulder , recurving to
prorsiradiate on the whorl side . The ribs bifurcate and trifurcate . Some of the
trifurcating ribs behave as intercalatory extending to about 2 / 3rd of the whorl
side ...
The primary ribs are rursiradiate on the umbilical wall and shoulder , recurving to
prorsiradiate on the whorl side . The ribs bifurcate and trifurcate . Some of the
trifurcating ribs behave as intercalatory extending to about 2 / 3rd of the whorl
side ...
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Common terms and phrases
Alpine ammonite ammonite bed antimony argillaceous Arkell associated Baluchistan geosynclinal barite Bela Belemnite belt body chamber Bomburites border central geosynclinal trough Chagai median massif characteristic characterized Chiltan limestone Choffatia chromite chromite deposits closely comparable complex confined connected consider copper correlation Cretaceous Cutch described diameter Dimensions distinguished distribution early effusives endogenous deposits endogenous mineralization extending fauna figured folded followed formation formed fractured geological Geological Survey geosynclinal development Jurassic Kheraiceras known late limits Lower Callovian Macrocephalites magmatism manifestations Mazar Drik metallogeny Middle molybdenum Nakus Neocomian Noetling occur Oligocene origin outline Paralcidia Pishin-Makran Platform possible present pyritic region regularities relation represented ribs rocks sedimentation sequence shale shell skarn southern Spath specimen stage structures submarine Survey of Pakistan thickness thin took ultramafic intrusions umbilical unit Upper Waagen Wam Tangi West Pakistan whorl section whorl side widely zone
Bibliographic information
| Title | Memoirs of the Geological Survey of Pakistan, Volumes 7-8 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 |