Annals of the South African Museum, Volume 7 |
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Page 7
... the boundaries are clearly marked ; the distance between the different series of
apertures is one and a half to two and a half times the diameter of an aperture ;
those of the same series are distant about a quarter the diameter of an aperture .
... the boundaries are clearly marked ; the distance between the different series of
apertures is one and a half to two and a half times the diameter of an aperture ;
those of the same series are distant about a quarter the diameter of an aperture .
Page 209
Tate's specimen measures less than 20 mm . in greatest diameter . Allowing for
this , however , there is some similarity in the type of sculpture in the two forms . If
they are closely related the points of distinction that exist may well be due to the ...
Tate's specimen measures less than 20 mm . in greatest diameter . Allowing for
this , however , there is some similarity in the type of sculpture in the two forms . If
they are closely related the points of distinction that exist may well be due to the ...
Page 211
At the end towards the alveolus the transverse diameter is 11 mm . , the
dorsoventral diameter 9.5 mm . At the other end the transverse diameter is 9 mm .
, the dorso - ventral measurement 8 mm . Situated on the side are two parallel ,
shallow ...
At the end towards the alveolus the transverse diameter is 11 mm . , the
dorsoventral diameter 9.5 mm . At the other end the transverse diameter is 9 mm .
, the dorso - ventral measurement 8 mm . Situated on the side are two parallel ,
shallow ...
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Contents
ExogyRA | 25 |
extoni Cleithrolepis S Woodward 264 | 31 |
baini Mytilus Sharpe | 33 |
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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 |