Annals of the South African Museum, Volume 7South African Museum, 1913 - Natual history |
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Page 8
... becomes compressed in a plane parallel to the obverse and reverse faces , at the same time becoming very curved , so that in a section along the proximal - distal axis the obverse face appears convex and the reverse face concave . When ...
... becomes compressed in a plane parallel to the obverse and reverse faces , at the same time becoming very curved , so that in a section along the proximal - distal axis the obverse face appears convex and the reverse face concave . When ...
Page 14
... become smaller ; above the ambitus the surrounding band of granules becomes much wider . At the ambitus and continued on to the base of the test there is a row of secondary tubercles at the external margin of the area . Peristome of ...
... become smaller ; above the ambitus the surrounding band of granules becomes much wider . At the ambitus and continued on to the base of the test there is a row of secondary tubercles at the external margin of the area . Peristome of ...
Page 39
... becomes apparent that some of the conspicuous elements which help to lend a definite character to the assemblage , while finding no exact parallel in the European area , have an unmis- takable counterpart in the fauna of the Oomia ...
... becomes apparent that some of the conspicuous elements which help to lend a definite character to the assemblage , while finding no exact parallel in the European area , have an unmis- takable counterpart in the fauna of the Oomia ...
Page 42
... becomes very much reduced , and if dissociated from the forms which accompany them , they could not well be considered to afford proof of contemporaneity . But whatever be the causes that determine the evolution along converging lines ...
... becomes very much reduced , and if dissociated from the forms which accompany them , they could not well be considered to afford proof of contemporaneity . But whatever be the causes that determine the evolution along converging lines ...
Page 54
... become quickly modified as regards some of its most salient characteristics . Dr. Kossmat has brought forward evidence to show that in the migration of Upper Cretaceous cephalopods " the distribution of the species did not require any ...
... become quickly modified as regards some of its most salient characteristics . Dr. Kossmat has brought forward evidence to show that in the migration of Upper Cretaceous cephalopods " the distribution of the species did not require any ...
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Common terms and phrases
Acanthodiscus adult Ammonites angle aperture Aptian Astarte atherstoni Sharpe baini bank of Sunday's bone breadth Broom carinal characters closely Coega collection comparison conocardiiformis convex costate Cutch Cynodonts d'Orbigny developed diameter dorsal elongated Eriphyla escutcheon Exogyra fauna figure flank flattened fossils frontal genus Geol Geological German East Africa Graaff-Reinet groove Hauterivian height herzogi Holcostephanus holubi imbricata Jurassic keel Kitchin Krauss left valve length less Lower Cretaceous Lycett margin Massospondylus narrow Neocomian Neumayr occur Oolitic Oomia beds ornamentation outline Pareiasaurus Pavlow Pecten Plate posterior posteriorly preserved represented resemblance ribs ridges right valve Rogers and Schwarz rogersi sculpture shell similar slightly South African Museum species specimen spiral stage Stoliczka stowi Sunday's River surface suture Tate Tate's transverse Trigonia Trigonia ventricosa tubercles Uhlig Uitenhage Uitenhage beds Uitenhage Series umbilical umbilicus umbo umbonal region upper W. T. Blanford whorl zoarium Zwartkop's River