Annals of the South African Museum, Volume 7 |
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Page 116
Three or four bent ribs are successively produced , having a more delicate
anterior and more robust posterior limb , and an increasing acuteness of the
angle . Subsequently , an anterior and a posterior series of inclined ribs may be
spoken of ...
Three or four bent ribs are successively produced , having a more delicate
anterior and more robust posterior limb , and an increasing acuteness of the
angle . Subsequently , an anterior and a posterior series of inclined ribs may be
spoken of ...
Page 139
Anthonya cultriformis Gabb , * the type - species of the genus , from the
Cretaceous rocks of California , differs in being considerably more elongated and
attenuated posteriorly , and in having more oblique posterior truncation . It also
lacks the ...
Anthonya cultriformis Gabb , * the type - species of the genus , from the
Cretaceous rocks of California , differs in being considerably more elongated and
attenuated posteriorly , and in having more oblique posterior truncation . It also
lacks the ...
Page 215
Their truncated posterior borders are slightly sinuous - being projected
backwardly just below the articular socket , and having a slightly excavated
outline below this . The posterior borders bear minute marginal denticles , and
they form a ...
Their truncated posterior borders are slightly sinuous - being projected
backwardly just below the articular socket , and having a slightly excavated
outline below this . The posterior borders bear minute marginal denticles , and
they form a ...
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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 |