Annals of the South African Museum, Volume 7, Part 2South African Museum, 1898 - Natural history |
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Page 96
... narrow , closely spaced ribs extend between the carinal angle and the upper terminations of the swollen frontal ribs , or may be looked upon as the attenuated upward prolongations of these since the two sets are so far in continuity ...
... narrow , closely spaced ribs extend between the carinal angle and the upper terminations of the swollen frontal ribs , or may be looked upon as the attenuated upward prolongations of these since the two sets are so far in continuity ...
Page 100
... narrow anteriorly , and gradually broadens posteriorly . For a distance of about 15 mm . from the umbonal . apex it is ornamented by delicate , slightly granular , transverse ridges separated by narrow grooves . The terminations of ...
... narrow anteriorly , and gradually broadens posteriorly . For a distance of about 15 mm . from the umbonal . apex it is ornamented by delicate , slightly granular , transverse ridges separated by narrow grooves . The terminations of ...
Page 138
... narrow , lath - like ridge ( represented on the cast by a narrow hollow ) running parallel with the upper valve - margin for a short distance in front of the umbo , and another similar narrow depression extends for a longer distance ...
... narrow , lath - like ridge ( represented on the cast by a narrow hollow ) running parallel with the upper valve - margin for a short distance in front of the umbo , and another similar narrow depression extends for a longer distance ...
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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