Annals of the South African Museum, Volume 7South African Museum, 1913 - Natual history |
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Page 47
... posterior elongation , with absence of sculpture from the area and the posterior part of the flank in the adult shell , in which also the area has ceased to be demarcated from the flank . An Astarte from the Oomia Trigonia - beds ...
... posterior elongation , with absence of sculpture from the area and the posterior part of the flank in the adult shell , in which also the area has ceased to be demarcated from the flank . An Astarte from the Oomia Trigonia - beds ...
Page 71
... posterior outline is gently rounded , the anterior profile straight . The straight anterior border passes at its lower ... posteriorly and inferiorly . Anteriorly , the flank passes abruptly , though without marked cari- nation , into an ...
... posterior outline is gently rounded , the anterior profile straight . The straight anterior border passes at its lower ... posteriorly and inferiorly . Anteriorly , the flank passes abruptly , though without marked cari- nation , into an ...
Page 72
... posterior ears . L. ovalis , t more oblique and anteriorly produced , with minutely delicate and crowded linear ornaments , can scarcely be brought into close comparison . Lima obliquissima in reality may be most closely compared with ...
... posterior ears . L. ovalis , t more oblique and anteriorly produced , with minutely delicate and crowded linear ornaments , can scarcely be brought into close comparison . Lima obliquissima in reality may be most closely compared with ...
Page 73
... posterior cardinal expansion of the flank . A Neocomian shell having great resemblance in form to L. obliquis- sima is Lima undata ( Desh . ) Leym . , ΒΆ but it is distinguished by its longer hinge - line and stronger ornaments . In the ...
... posterior cardinal expansion of the flank . A Neocomian shell having great resemblance in form to L. obliquis- sima is Lima undata ( Desh . ) Leym . , ΒΆ but it is distinguished by its longer hinge - line and stronger ornaments . In the ...
Page 82
... posterior margin , which is only very slightly convex in outline until the posterior end of the valve is reached . In profile , the antero - ventral margin is straight , passing from the acutely pointed umbo to the posterior angle of ...
... posterior margin , which is only very slightly convex in outline until the posterior end of the valve is reached . In profile , the antero - ventral margin is straight , passing from the acutely pointed umbo to the posterior angle of ...
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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