Annals of the South African Museum, Volume 7South African Museum, 1913 - Natual history |
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Page 3
... direction is about once the diameter of an aperture ; that in a direction at right angles to the last is once or less than once the diameter of an aperture . This definition does not distinguish D. compressa from Mesenteripora Hyselyi ...
... direction is about once the diameter of an aperture ; that in a direction at right angles to the last is once or less than once the diameter of an aperture . This definition does not distinguish D. compressa from Mesenteripora Hyselyi ...
Page 4
... direction . Distribution . Senonian . IDMONEIDE . GENUS IDMONEA , Lamouroux . IDMONEA VIRGULA , d'Orbigny . Plate I. , fig . 4 . 1851. Idmonea virgula , d'Orbigny , Bry . Crét . , pl . 631 , figs . 15-17 . 1863. Reptotubigera simplex ...
... direction . Distribution . Senonian . IDMONEIDE . GENUS IDMONEA , Lamouroux . IDMONEA VIRGULA , d'Orbigny . Plate I. , fig . 4 . 1851. Idmonea virgula , d'Orbigny , Bry . Crét . , pl . 631 , figs . 15-17 . 1863. Reptotubigera simplex ...
Page 8
... direction being generally more than four times the diameter of an aperture . There are never more than two apertures in the breadth of a branch . The zoœcia * See W. D. Lang , Geol . Mag . , 1905 , pp . 259-260 . J. W. Gregory , Brit ...
... direction being generally more than four times the diameter of an aperture . There are never more than two apertures in the breadth of a branch . The zoœcia * See W. D. Lang , Geol . Mag . , 1905 , pp . 259-260 . J. W. Gregory , Brit ...
Page 9
... direction more than four times the diameter of an aperture ; the apertures occur in rows of two or three across the branch ; the zoœecia are immersed and their boundaries may be faintly marked . This form is very like E. geminata ( von ...
... direction more than four times the diameter of an aperture ; the apertures occur in rows of two or three across the branch ; the zoœecia are immersed and their boundaries may be faintly marked . This form is very like E. geminata ( von ...
Page 10
... direction less than four diameters of an aperture ; there are four to six apertures in the breadth of a branch ; the apertures are somewhat irregularly arranged in spirals ; the zoocia are immersed . Three ill - preserved specimens from ...
... direction less than four diameters of an aperture ; there are four to six apertures in the breadth of a branch ; the apertures are somewhat irregularly arranged in spirals ; the zoocia are immersed . Three ill - preserved specimens from ...
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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