Annals of the South African Museum, Volume 7South African Museum, 1913 - Natual history |
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Page 5
... marked ; the lateral series of apertures are quite regular , and just reach the middle line of the obverse face ; there are about four apertures in each lateral series ; the apertures are circular , all of one size ; those of the same ...
... marked ; the lateral series of apertures are quite regular , and just reach the middle line of the obverse face ; there are about four apertures in each lateral series ; the apertures are circular , all of one size ; those of the same ...
Page 7
... marked ; the distance between the different series of apertures is one and a half to two and a half times the diameter of an aperture ; those of the same series are distant about a quarter the diameter of an aperture . This is the ...
... marked ; the distance between the different series of apertures is one and a half to two and a half times the diameter of an aperture ; those of the same series are distant about a quarter the diameter of an aperture . This is the ...
Page 9
... marked . This form is very like E. geminata ( von Hagenow ) , but the zooccia are shorter , the boun- daries of the zooecia are less clearly marked , and the apertures occur in groups of three instead of two as in E. geminata . A single ...
... marked . This form is very like E. geminata ( von Hagenow ) , but the zooccia are shorter , the boun- daries of the zooecia are less clearly marked , and the apertures occur in groups of three instead of two as in E. geminata . A single ...
Page 10
... the distance between the apertures of a whorl is a half or less than a half the diameter of an aperture ; the zoĆcia are immersed , but the boundaries between them are clearly marked by thin ridges . 10 Annals of the South African Museum .
... the distance between the apertures of a whorl is a half or less than a half the diameter of an aperture ; the zoĆcia are immersed , but the boundaries between them are clearly marked by thin ridges . 10 Annals of the South African Museum .
Page 11
South African Museum. boundaries between them are clearly marked by thin ridges . Next to Tervia dorsata ( von Hagenow ) , this is the commonest species of Cyclostome among the material here described . Distribution . Neocomian to Danian ...
South African Museum. boundaries between them are clearly marked by thin ridges . Next to Tervia dorsata ( von Hagenow ) , this is the commonest species of Cyclostome among the material here described . Distribution . Neocomian to Danian ...
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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