Annals of the South African Museum, Volume 7South African Museum, 1913 - Natual history |
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Page 71
... rounded , the anterior profile straight . The straight anterior border passes at its lower end by a somewhat sudden curve into the rounded inferior border . The valves are most convex in the umbonal half and near the anterior side ...
... rounded , the anterior profile straight . The straight anterior border passes at its lower end by a somewhat sudden curve into the rounded inferior border . The valves are most convex in the umbonal half and near the anterior side ...
Page 76
... rounded curve similar to that followed by the outline of the same part in Perna mytiloides Lam . , and should not have been drawn in the angular or sub - angular form which lends such a false aspect to the outline of the shell as ...
... rounded curve similar to that followed by the outline of the same part in Perna mytiloides Lam . , and should not have been drawn in the angular or sub - angular form which lends such a false aspect to the outline of the shell as ...
Page 80
... rounded ) , more concave laminæ lying much higher one upon the other , and a stronger umbo bent further over the opercular valve , than in Gryphæa couloni Defr . " Some of the shells figured by d'Orbigny as Ostrea couloni § show no ...
... rounded ) , more concave laminæ lying much higher one upon the other , and a stronger umbo bent further over the opercular valve , than in Gryphæa couloni Defr . " Some of the shells figured by d'Orbigny as Ostrea couloni § show no ...
Page 83
... rounded , obliquely running ridges of accretion . Traces of the narrow , elongated , fossilised ligament have been observed . Dimensions.— Length of the antero - ventral margin Length of the cardinal margin ... Greatest breadth of flank ...
... rounded , obliquely running ridges of accretion . Traces of the narrow , elongated , fossilised ligament have been observed . Dimensions.— Length of the antero - ventral margin Length of the cardinal margin ... Greatest breadth of flank ...
Page 85
... on the age of this sandstone see Rehbinder ( 1 ) , p . 87 . Buvignier ( 1 ) , p . 24 , pl . xvi . , figs . 35-37 . developed as a rounded folding of the valve . Above 7 The Invertebrate Fauna of the Uitenhage Series . 85.
... on the age of this sandstone see Rehbinder ( 1 ) , p . 87 . Buvignier ( 1 ) , p . 24 , pl . xvi . , figs . 35-37 . developed as a rounded folding of the valve . Above 7 The Invertebrate Fauna of the Uitenhage Series . 85.
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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