Annals of the South African Museum, Volume 7 |
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Page 98
In the adult T. kraussi , within a space of 33 mm , measured backwards along the
flank from the lower end of the frontal margin , three ribs only are included . At a
height , measured from the umbo , which represents the full adult height of T.
In the adult T. kraussi , within a space of 33 mm , measured backwards along the
flank from the lower end of the frontal margin , three ribs only are included . At a
height , measured from the umbo , which represents the full adult height of T.
Page 108
area . half the adult dimensions are attained . The transverse ribs which are
subsequently developed on the area are not so well defined or so robust as in T.
mamillata . From Trigonia herzogi ( Goldf . ) , * T. holubi is readily distinguished
by ...
area . half the adult dimensions are attained . The transverse ribs which are
subsequently developed on the area are not so well defined or so robust as in T.
mamillata . From Trigonia herzogi ( Goldf . ) , * T. holubi is readily distinguished
by ...
Page 112
The close agreement in the characters of the neanic stage reveals the near
relationship of these two forms , and , indeed , such a relationship might
reasonably be inferred from a comparison of adult characters , which coincide in
a remarkable ...
The close agreement in the characters of the neanic stage reveals the near
relationship of these two forms , and , indeed , such a relationship might
reasonably be inferred from a comparison of adult characters , which coincide in
a remarkable ...
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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 |