Annals of the South African Museum, Volume 7South African Museum, 1913 - Natual history |
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Page 3
... angles to the last is once or less than once the diameter of an aperture . This definition does not distinguish D ... angle between the surface and the direction of the zoœcia at that level . It is possible that in M. Hyselyi the ...
... angles to the last is once or less than once the diameter of an aperture . This definition does not distinguish D ... angle between the surface and the direction of the zoœcia at that level . It is possible that in M. Hyselyi the ...
Page 33
... angle on either side and a circular aperture , but the true S. plicatilis Goldf . has only a single central , longitudinal keel . S. quinquangularis Goldf . ‡ ( Upper Jurassic ) stands much closer in its characters , and a Serpula ...
... angle on either side and a circular aperture , but the true S. plicatilis Goldf . has only a single central , longitudinal keel . S. quinquangularis Goldf . ‡ ( Upper Jurassic ) stands much closer in its characters , and a Serpula ...
Page 70
... angle ( about 80 ° ) . The inflation is slight , with the left valve a little more convex than the right . On The valves are ornamented by about 22 strong , angular ribs with sharp summits . Near the inferior margin the summits of the ...
... angle ( about 80 ° ) . The inflation is slight , with the left valve a little more convex than the right . On The valves are ornamented by about 22 strong , angular ribs with sharp summits . Near the inferior margin the summits of the ...
Page 71
... angle with the anterior border . The anterior ear is rudimentary or not developed ; the posterior ear is much reduced , and not definitely demarcated from the flank . The ornamentation consists of delicate linear radial grooves , very ...
... angle with the anterior border . The anterior ear is rudimentary or not developed ; the posterior ear is much reduced , and not definitely demarcated from the flank . The ornamentation consists of delicate linear radial grooves , very ...
Page 72
... angles to the last Greatest depth of a single valve .... 40 ,, 10 ,, Occurrence . Railway cutting between milestones 241-24 on the line from Uitenhage to Graaff - Reinet , about three miles from Uitenhage ( 346 ) ; also stated to occur ...
... angles to the last Greatest depth of a single valve .... 40 ,, 10 ,, Occurrence . Railway cutting between milestones 241-24 on the line from Uitenhage to Graaff - Reinet , about three miles from Uitenhage ( 346 ) ; also stated to occur ...
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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