Annals of the South African Museum, Volume 7South African Museum, 1913 - Natual history |
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Page 3
... surface and the elongation of the apertures were due to the angle between the surface and the direction of the zoĆcia at that level . It is possible that in M. Hyselyi the direction of the zoccia would be perpendicular to the surface ...
... surface and the elongation of the apertures were due to the angle between the surface and the direction of the zoĆcia at that level . It is possible that in M. Hyselyi the direction of the zoccia would be perpendicular to the surface ...
Page 13
... ( either very slightly or not at all crenulate ) , with a large areola , and a few small tubercles and granules around the margin . The primary tubercles are largest at the ambitus , and smaller on the dorsal surface ( 13 )
... ( either very slightly or not at all crenulate ) , with a large areola , and a few small tubercles and granules around the margin . The primary tubercles are largest at the ambitus , and smaller on the dorsal surface ( 13 )
Page 63
... surface of the tube is marked by numerous irregular transverse wrinkles and furrows . Dimensions.- Greatest diameter across the whorls 9 mm . Greatest external diameter of the tube at the close of the coiled stage 3 Occurrence . A ...
... surface of the tube is marked by numerous irregular transverse wrinkles and furrows . Dimensions.- Greatest diameter across the whorls 9 mm . Greatest external diameter of the tube at the close of the coiled stage 3 Occurrence . A ...
Page 64
... surface of the tube is occasionally marked by irregular annular thickenings . Mr. Rogers collected specimens from the Cliff on Buck Kraal , Sunday's River , attached to Trigonia herzogi ( 122h ) , and at the left side of the Coega ...
... surface of the tube is occasionally marked by irregular annular thickenings . Mr. Rogers collected specimens from the Cliff on Buck Kraal , Sunday's River , attached to Trigonia herzogi ( 122h ) , and at the left side of the Coega ...
Page 65
... surface - a character by which it may be recognised as a right valve . With the exception of its imperfect preservation in the umbonal region and its somewhat smaller dimen- sions , this specimen agrees very perfectly with the right ...
... surface - a character by which it may be recognised as a right valve . With the exception of its imperfect preservation in the umbonal region and its somewhat smaller dimen- sions , this specimen agrees very perfectly with the right ...
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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