Annals of the South African Museum, Volume 7, Part 2South African Museum, 1898 - Natural history |
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Page 108
... marked general similarity to Trigonia transitoria Steinmann , from South America , but the ornamentation differs considerably . In T. transitoria the tubercles of the costa on the flank are placed closely against one another through all ...
... marked general similarity to Trigonia transitoria Steinmann , from South America , but the ornamentation differs considerably . In T. transitoria the tubercles of the costa on the flank are placed closely against one another through all ...
Page 116
... marked only by ridges and furrows of accretion . The lowest ribs of the anterior series become in varying degree irregularly nodose or broken into wavy lines of nodes with loss of regularity near the lower valve margin . The ribs of the ...
... marked only by ridges and furrows of accretion . The lowest ribs of the anterior series become in varying degree irregularly nodose or broken into wavy lines of nodes with loss of regularity near the lower valve margin . The ribs of the ...
Page 121
... marked a feature in the adult , is only faintly indicated at the close of the neanic stage . As the succeeding ... marked longitudinal groove . The escutcheon is of very elongated lanceolate form . It is not separated from the area by ...
... marked a feature in the adult , is only faintly indicated at the close of the neanic stage . As the succeeding ... marked longitudinal groove . The escutcheon is of very elongated lanceolate form . It is not separated from the area by ...
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Common terms and phrases
Acanthodiscus Ammonites angle anteriorly aperture Aptian Astarte atherstoni Sharpe baini Sharpe bank of Sunday's Belemnites carinal characters closely Coega Coega Valley collection comparison conocardiiformis convex costate Cutch d'Orb d'Orbigny delicate developed Dimensions Dunbrodie elongated Eriphyla escutcheon Exogyra fauna figured flank flattened fossils frontal genus Geol German East Africa Graaff-Reinet groove Hauterivian height herzogi Holcostephanus holubi inflated Jurassic keel Krauss last whorl left valve less Lower Cretaceous Lycett margin Marine Beds Müller narrow Neocomian Neumayr occur Oolitic Oomia beds ornamentation outline Pavlow Pecten posterior posteriorly railway relatively represent resemblance ribs ridges right valve Rogers and Schwarz sculpture shell similar South African Museum Sowerby species specimen spiral Stoliczka stowi strata Sunday's River surface suture Tate Tate's transverse Trigonia Trigonia ventricosa tubercles Uhlig Uitenhage beds Uitenhage Series uitenhagensis sp umbilical umbilicus umbo umbonal region upper W. T. Blanford whorl Zwartkop's River