Annals of the South African Museum, Volume 7South African Museum, 1913 - Natual history |
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Page 2
... less the diameter of an aperture ; between those of neighbouring series twice - and - a - half to thrice . Zoccia immersed , but the boundaries between them are more or less apparent as ridges . One fragment out of seven is figured ...
... less the diameter of an aperture ; between those of neighbouring series twice - and - a - half to thrice . Zoccia immersed , but the boundaries between them are more or less apparent as ridges . One fragment out of seven is figured ...
Page 3
... less than once the diameter of an aperture . This definition does not distinguish D. compressa from Mesenteripora Hyselyi , de Loriol ( Urg . Land .: Mém . Soc . helv . Sci . Nat . , vol . xxiii . , 1869 , p . 40 , pl . iii . , fig . 1 ) ...
... less than once the diameter of an aperture . This definition does not distinguish D. compressa from Mesenteripora Hyselyi , de Loriol ( Urg . Land .: Mém . Soc . helv . Sci . Nat . , vol . xxiii . , 1869 , p . 40 , pl . iii . , fig . 1 ) ...
Page 9
... less clearly marked , and the apertures occur in groups of three instead of two as in E. geminata . A single specimen of this species occurs among the material here described . Distribution . Cenomanian . ENTALOPHORA ECHINATA ( Römer ) ...
... less clearly marked , and the apertures occur in groups of three instead of two as in E. geminata . A single specimen of this species occurs among the material here described . Distribution . Cenomanian . ENTALOPHORA ECHINATA ( Römer ) ...
Page 10
... 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 among the ...
... 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 among the ...
Page 13
... less than half the diameter ; greatest diameter in the lower third . Apical disc rather small , not preserved . Ambulacra not quite as wide as the interambulacra . Poriferous zones undulating . Pores unigeminal , except on the base of ...
... less than half the diameter ; greatest diameter in the lower third . Apical disc rather small , not preserved . Ambulacra not quite as wide as the interambulacra . Poriferous zones undulating . Pores unigeminal , except on the base 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