Annals of the South African Museum, Volume 7 |
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Page 35
ticulars from all known Quadratę , and found that the special features which
distinguish this Uitenhage shell from the Jurassic Clavellatę on the one hand
and the Cretaceous Quadratę on the other , are shared by Trigonia transitoria
Steinm ...
ticulars from all known Quadratę , and found that the special features which
distinguish this Uitenhage shell from the Jurassic Clavellatę on the one hand
and the Cretaceous Quadratę on the other , are shared by Trigonia transitoria
Steinm ...
Page 361
Though a large number of species are known , and though we have a very good
idea of the general character of the fauna at different periods , the known species
must be few in number in comparison to those which remain to be discovered .
Though a large number of species are known , and though we have a very good
idea of the general character of the fauna at different periods , the known species
must be few in number in comparison to those which remain to be discovered .
Page 365
In dealing with extinct forms which are often very imperfectly known it is
impossible to do more than place many of them in the system provisionally .
Attention may be called to the following points :Gorgonops , Titanosuchus , and
the allied ...
In dealing with extinct forms which are often very imperfectly known it is
impossible to do more than place many of them in the system provisionally .
Attention may be called to the following points :Gorgonops , Titanosuchus , and
the allied ...
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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 |