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 . IDMONEIDÆ . 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 . IDMONEIDÆ . 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 zoœcia 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 zoœcia 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 zoœcia 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 zoœcia are immersed . Three ill - preserved specimens from ...
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Common terms and phrases
1st phalanx Ammonites angle aperture Aptian articular Astarte atherstoni Sharpe baini bank of Sunday's bone Broom carinal characters closely Coega collection comparison convex Cutch Cynodonts Cynognathus d'Orbigny Dicynodon differs distal dorsal dorsal fin elongated Exogyra fauna figured flank flattened fossils front frontal genus Geol Geological Graaff-Reinet greatest Gryponyx Hauterivian height herzogi Holcostephanus humerus imbricata Jurassic keel Krauss Left valve length Lower Cretaceous Lystrosaurus margin Massospondylus maxilla measures narrow Neocomian Neumayr occur Oomia ornamentation outline Pareiasaurus Pecten phalanx Plate portion posterior posteriorly preserved probably Propappus represented resemblance ribs ridges Right valve Rogers and Schwarz rogersi sculpture Seeley shell side similar skull slightly South African Museum species specimen Sunday's River surface suture Tate transverse Trigonia tubercles Uhlig Uitenhage Uitenhage beds Uitenhage Series uitenhagensis sp umbilical umbo umbonal region upper ventricosa W. T. Blanford whorl width zoarium Zwartkop's River