Annals of the South African Museum: Annale Van Die Suid-Afrikaanse MuseumWest, Newman & Company for the trustees of the Museum, 1990 - Natural history |
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Page 23
... type species of the new genus Zulutrigonia . Other species to be referred here include T. krenkeli Lange and T. kigombana Aitken from the Neocomian - Aptian of Tanzania . Introduction Systematic description . Acknowledgements ...
... type species of the new genus Zulutrigonia . Other species to be referred here include T. krenkeli Lange and T. kigombana Aitken from the Neocomian - Aptian of Tanzania . Introduction Systematic description . Acknowledgements ...
Page 25
... Type species . Trigonia ( Rutitrigonia ) pongolensis Rennie , 1936 ; by original designation herein . Diagnosis Shell medium sized , subtrapezoidal , with inconspicuous subterminal umbones and opisthogyrous beaks . Anterior margin ...
... Type species . Trigonia ( Rutitrigonia ) pongolensis Rennie , 1936 ; by original designation herein . Diagnosis Shell medium sized , subtrapezoidal , with inconspicuous subterminal umbones and opisthogyrous beaks . Anterior margin ...
Page 26
... Type material The holotype , SAM - PCZ8528 , and paratype , SAM - PCZ8529 , both in the South African Museum , Cape Town . Type locality The material was collected by Drs S. H. Haughton and A. W. Rogers along the Mfongosi stream , a ...
... Type material The holotype , SAM - PCZ8528 , and paratype , SAM - PCZ8529 , both in the South African Museum , Cape Town . Type locality The material was collected by Drs S. H. Haughton and A. W. Rogers along the Mfongosi stream , a ...
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Common terms and phrases
abbreviated according to chronology acute angle Aitken ANNALS antecarinal sulcus bicuspidata Gould Broad subtrigonal area Cape Town comma separates comprises coarse concentric costae curve strongly upwards described Haughton escutcheon fastigiate roof-shaped flank costae Gastropoda GENUS OF RUTITRIGONIINAE Hoepen holotype Kobayashi krenkeli Lamarck Lange Later flank Leda LOWER CRETACEOUS APTIAN margin and obliquely marginal carina Megatrigonia middle growth stages Nakano namacolus nepionic stages noteworthy similarities Nucula obliquely truncate opisthogyrous beaks ornament comprises paratypes parentheses posterodorsal commissure punctuation reduction or enlargement references registration number respiratory margin ribbing Roman numerals RUTITRIGONIINAE BIVALVIA scientific name separate author's name shell is fastigiate Shell medium sized shouldered italics Smith South African Museum species straight posterodorsal margin strongly upwards posteriorly subconcentric subheadings are shouldered subterminal umbones subtrapezoidal Synonymy arrangement Syrotrigonia taxa Trigonia Rutitrigonia TRIGONIACEA umbonal ridge V-shaped costae ventral margin VOLUME 99 volume number Von Huene weakly ZULULAND Zulutrigonia gen Zulutrigonia pongolensis Rennie