Annals of the South African Museum, Volume 7, Part 2South African Museum, 1898 - Natural history |
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Page 100
... ridges and lines of accretion at the frontal margin , where the ribs may then be seen to terminate at some little ... ridges separated by narrow grooves . The terminations of these ridges at the carinal angle do not correspond strictly ...
... ridges and lines of accretion at the frontal margin , where the ribs may then be seen to terminate at some little ... ridges separated by narrow grooves . The terminations of these ridges at the carinal angle do not correspond strictly ...
Page 105
... ridges or irregular ribs cross the area in the posterior half of an adult individual , terminating above and below in the marginal tubercles and also between them . These ridges make their first appearance somewhat abruptly , and become ...
... ridges or irregular ribs cross the area in the posterior half of an adult individual , terminating above and below in the marginal tubercles and also between them . These ridges make their first appearance somewhat abruptly , and become ...
Page 106
... ridges into undue relief , which results in an appearance so deceptive that for some time I was in doubt whether ... ridges is more complete and regular in some specimens than in others , and the ridges replace the isolated tubercles at ...
... ridges into undue relief , which results in an appearance so deceptive that for some time I was in doubt whether ... ridges is more complete and regular in some specimens than in others , and the ridges replace the isolated tubercles at ...
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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