Annals of the South African Museum, Volume 7 |
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Page 104
A flattened frontal face is well developed in fully grown specimens . There is no
definite carinal angle , but the area is well demarcated by the limits of its
particular sculpture , which is contrasted with that of the flank . The sculpture of
the flank in ...
A flattened frontal face is well developed in fully grown specimens . There is no
definite carinal angle , but the area is well demarcated by the limits of its
particular sculpture , which is contrasted with that of the flank . The sculpture of
the flank in ...
Page 174
of the aperture is a well - developed callus . There is a slightly developed , short ,
closed umbilical slit . Dimensions . ( 1 ) ( 2 ) ( 3 ) Height of the shell 11 12 13 mm .
Height of the body - whorl at the aperture 8 8 9 Greatest width of aperture 6 5.5 ...
of the aperture is a well - developed callus . There is a slightly developed , short ,
closed umbilical slit . Dimensions . ( 1 ) ( 2 ) ( 3 ) Height of the shell 11 12 13 mm .
Height of the body - whorl at the aperture 8 8 9 Greatest width of aperture 6 5.5 ...
Page 261
The clavicle is well developed . The rays of the pectoral fin are distinctly
articulated distally , but it is not clear whether the proximal halves are also
articulated . The pelvic fin is seen in the type specimen , but it is very imperfectly
preserved .
The clavicle is well developed . The rays of the pectoral fin are distinctly
articulated distally , but it is not clear whether the proximal halves are also
articulated . The pelvic fin is seen in the type specimen , but it is very imperfectly
preserved .
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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 |