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 O ...
... 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 O ...
Page 35
... sculpture on the escutcheon in distinguishing between the Jurassic Clavellatæ on the one hand , and the Cretaceous Clavellatæ and Quadratæ 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 Quadratæ 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 Trigonic 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 Trigonic 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
1st phalanx Ammonites angle aperture Aptian articular Astarte atherstoni Sharpe baini bank of Sunday's bone Broom carinal characters closely Coega collection comparison convex Cutch Cynodonts Cynognathus d'Orbigny Dicynodon differs distal dorsal dorsal fin elongated Exogyra fauna figured flank flattened fossils front frontal genus Geol Geological Graaff-Reinet greatest Gryponyx Hauterivian height herzogi Holcostephanus humerus imbricata Jurassic keel Krauss Left valve length Lower Cretaceous Lystrosaurus margin Massospondylus maxilla measures narrow Neocomian Neumayr occur Oomia ornamentation outline Pareiasaurus Pecten phalanx Plate portion posterior posteriorly preserved probably Propappus represented resemblance ribs ridges Right valve Rogers and Schwarz rogersi sculpture Seeley shell side similar skull slightly South African Museum species specimen Sunday's River surface suture Tate transverse Trigonia tubercles Uhlig Uitenhage Uitenhage beds Uitenhage Series uitenhagensis sp umbilical umbo umbonal region upper ventricosa W. T. Blanford whorl width zoarium Zwartkop's River