Annals of the South African Museum, Volume 7South African Museum, 1913 - Natual history |
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Page 31
... sculpture . Further observations on " Ammonites " subanceps are given in the remarks which follow the description of a specimen ascribed to Acanthodiscus sp . , in the following pages . * Ostrea jonesiana Tate was compared by Tate with ...
... sculpture . Further observations on " Ammonites " subanceps are given in the remarks which follow the description of a specimen ascribed to Acanthodiscus sp . , in the following pages . * Ostrea jonesiana Tate was compared by Tate with ...
Page 35
... sculpture on the escutcheon in distinguishing between the Jurassic Clavellatæ on the one hand , and the Cretaceous Clavellatæ and Quadrata on the other , and in regard to this feature all the Pseudo - quadratæ agree with the Quadratæ in ...
... sculpture on the escutcheon in distinguishing between the Jurassic Clavellatæ on the one hand , and the Cretaceous Clavellatæ and Quadrata on the other , and in regard to this feature all the Pseudo - quadratæ agree with the Quadratæ in ...
Page 40
... sculptural plan , the members of this group of Trigoniæ form a prominent feature in the faunas in which they occur , and supply significant data in the present com- parative study . The basis for comparison is further strengthened by ...
... sculptural plan , the members of this group of Trigoniæ form a prominent feature in the faunas in which they occur , and supply significant data in the present com- parative study . The basis for comparison is further strengthened by ...
Page 41
... sculpture of the marginal carina and area , and the elongated form and fine ornamen- tation of the escutcheon ; they lend an aspect of similarity which cannot be overlooked , especially when these lingering examples of a typically ...
... sculpture of the marginal carina and area , and the elongated form and fine ornamen- tation of the escutcheon ; they lend an aspect of similarity which cannot be overlooked , especially when these lingering examples of a typically ...
Page 42
... sculpture on the area ; and in several instances the situation of the umbones relatively far from the anterior extremity . In the Oomia beds these points are illus- trated in varying degree in certain degenerate derivatives of Costatæ ...
... sculpture on the area ; and in several instances the situation of the umbones relatively far from the anterior extremity . In the Oomia beds these points are illus- trated in varying degree in certain degenerate derivatives of Costatæ ...
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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