Annals of the South African Museum, Volume 7 |
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Page 99
The shell is of somewhat elongated form ; it is anteriorly high and is posteriorly
more slender in outline and considerably produced . The valves are moderately
inflated in the anterior half of the shell , and are posteriorly more compressed .
The shell is of somewhat elongated form ; it is anteriorly high and is posteriorly
more slender in outline and considerably produced . The valves are moderately
inflated in the anterior half of the shell , and are posteriorly more compressed .
Page 312
about twenty cervical and fifteen dorsal vertebrę , some imperfect pterygoids for
a short distance ; in front of this again the pterygoids meet in the middle line for a
short distance , and then are separated by a narrow anterior inter - pterygoid ...
about twenty cervical and fifteen dorsal vertebrę , some imperfect pterygoids for
a short distance ; in front of this again the pterygoids meet in the middle line for a
short distance , and then are separated by a narrow anterior inter - pterygoid ...
Page 317
zygapophyses are relatively large ; the neural spines are incomplete in all the
anterior cervicals . In the posterior cervicals ( text - Fig . 2 ) the hypapophysial
ridge is broadly rounded , and is best marked in the anterior part of the centrum ;
the ...
zygapophyses are relatively large ; the neural spines are incomplete in all the
anterior cervicals . In the posterior cervicals ( text - Fig . 2 ) the hypapophysial
ridge is broadly rounded , and is best marked in the anterior part of the centrum ;
the ...
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Contents
ExogyRA | 25 |
extoni Cleithrolepis S Woodward 264 | 31 |
baini Mytilus Sharpe | 33 |
8 other sections not shown
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Common terms and phrases
adult African angle anterior apertures appears atherstoni baini Band becomes beds bone border Broom characters closely collection comparable comparison considerably convex Cretaceous curved d'Orbigny described developed diameter differs direction distinct distinguished dorsal doubt elongated evidence fauna figure flank fossils front frontal further genus Geol greater greatest half height Holcostephanus individual Jurassic known lateral length less lower margin marked measures middle Museum narrow Neocomian obtained occur Oomia ornamentation outline passes Plate portion posterior present preserved probably prominent referred regarded region relatively remarks represented resemblance ribs ridges Rogers rounded sculpture seems seen separated Sharpe shell shown shows side similar single slightly South African species specimen stage Sunday's River surface Tate traced Trigonia tubercles Uitenhage umbilical umbo umbonal upper valve whorl
Bibliographic information
| Title | Annals of the South African Museum, Volume 7 Annals of the South African Museum, South African Museum |
| Author | South African Museum |
| Publisher | South African Museum, 1913 |
| Original from | University of Minnesota |
| Digitized | 4 Oct 2013 |
| Export Citation | BiBTeX EndNote RefMan |