Annals of the South African Museum, Volume 7South African Museum, 1913 - Natual history |
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Page 16
... ornamented with ridges . From the median septum one or sometimes more branches come off on each side . Several examples of this species were found by Mr. Lang when searching for Polyzoa in the broken - up rock . LAMELLIBRANCHIA . OSTREA ...
... ornamented with ridges . From the median septum one or sometimes more branches come off on each side . Several examples of this species were found by Mr. Lang when searching for Polyzoa in the broken - up rock . LAMELLIBRANCHIA . OSTREA ...
Page 31
... ornamented than this , but there are points of agreement in the type of sculpture . Further observations on " Ammonites " subanceps are given in the remarks which follow the description of a specimen ascribed to Acanthodiscus sp . , in ...
... ornamented than this , but there are points of agreement in the type of sculpture . Further observations on " Ammonites " subanceps are given in the remarks which follow the description of a specimen ascribed to Acanthodiscus sp . , in ...
Page 32
... ornamentation , but is characterised by well - spaced concentric ridges which recall the similar ornamentation of Anomia neocomiensis d'Orb . , † though occurring in less emphasised form . The illustration of P. imbricata gives a very ...
... ornamentation , but is characterised by well - spaced concentric ridges which recall the similar ornamentation of Anomia neocomiensis d'Orb . , † though occurring in less emphasised form . The illustration of P. imbricata gives a very ...
Page 33
... ornamentation closely similar to those which distinguished M. sowerbiana ( d'Orb . ) and M. perplicata ( Etallon ) ; but this type of Modiola is by no means confined to Jurassic rocks , having also a widely distributed representative in ...
... ornamentation closely similar to those which distinguished M. sowerbiana ( d'Orb . ) and M. perplicata ( Etallon ) ; but this type of Modiola is by no means confined to Jurassic rocks , having also a widely distributed representative in ...
Page 35
... ornamentation on the escutcheon . Further remarks on the points of agreement between these groups are appended to the description of Trigonia holubi . * Trigonia conocardiiformis ( Krauss ) was thought by Lycett to fall Burckhardt ( 2 ) ...
... ornamentation on the escutcheon . Further remarks on the points of agreement between these groups are appended to the description of Trigonia holubi . * Trigonia conocardiiformis ( Krauss ) was thought by Lycett to fall Burckhardt ( 2 ) ...
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Common terms and phrases
Acanthodiscus adult Ammonites angle aperture Aptian Astarte atherstoni Sharpe bank of Sunday's bone Broom carinal characters closely Coega collection comparison conocardiiformis convex Cutch Cynodonts d'Orbigny developed diameter Dicynodon differs distal dorsal Dunbrodie elongated Eriphyla escutcheon Exogyra fauna figured flank flattened fossils frontal genus Geol Geological Graaff-Reinet greatest groove Gryponyx Hauterivian height herzogi Holcostephanus holubi imbricata Jurassic keel Kitchin Krauss left valve length less Lower Cretaceous Lycett Lystrosaurus margin Massospondylus narrow Neocomian Neumayr occur ornamentation outline Pareiasaurus Pavlow Pecten phalanx Plate posterior posteriorly preserved probably represented resemblance ribs ridges Right valve Rogers and Schwarz sculpture Seeley shell similar slightly South African Museum species specimen spiral stage Stoliczka Sunday's River surface suture Tate Tate's transverse Trigonia Trigonia ventricosa tubercles Uhlig Uitenhage Uitenhage beds Uitenhage Series uitenhagensis sp umbilical umbo umbonal region upper W. T. Blanford whorl zoarium Zwartkop's River