Annals of the South African Museum, Volume 7 |
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Page 81
The shells figured by Coquand * as Ostrea couloni include narrow forms , more
elongated and more decidedly carinated than E. imbricata , as well as a broad
type , developing plications of the larger valve in the later adult stage , which is in
...
The shells figured by Coquand * as Ostrea couloni include narrow forms , more
elongated and more decidedly carinated than E. imbricata , as well as a broad
type , developing plications of the larger valve in the later adult stage , which is in
...
Page 100
For a distance of about 15 mm . from the umbonal apex a very delicately nodose ,
narrow marginal carina is present . It then dwindles abruptly and disappears ,
while the carinal angle becomes less marked when traced posteriorly and is ...
For a distance of about 15 mm . from the umbonal apex a very delicately nodose ,
narrow marginal carina is present . It then dwindles abruptly and disappears ,
while the carinal angle becomes less marked when traced posteriorly and is ...
Page 138
In addition to the two short , diverging , cardinal teeth , there are indications of a
narrow , lath - like ridge ( represented on the cast by a narrow hollow ) running
parallel with the upper valve - margin for a short distance in front of the umbo ,
and ...
In addition to the two short , diverging , cardinal teeth , there are indications of a
narrow , lath - like ridge ( represented on the cast by a narrow hollow ) running
parallel with the upper valve - margin for a short distance in front of the umbo ,
and ...
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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 |