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
... taxon formed the basis for the monogeneric subfamily Rutitrigoniinae van Hoepen , corresponding broadly with the Excentrica group of Lycett ( 1879 ) . Van Hoepen's ( 1929 ) bold taxonomy failed to make immediate impact , and ...
... taxon formed the basis for the monogeneric subfamily Rutitrigoniinae van Hoepen , corresponding broadly with the Excentrica group of Lycett ( 1879 ) . Van Hoepen's ( 1929 ) bold taxonomy failed to make immediate impact , and ...
Page 25
... taxa . Genus Zulutrigonia gen . nov . Type species . Trigonia ( Rutitrigonia ) pongolensis Rennie , 1936 ; by original designation herein . Diagnosis Shell medium sized , subtrapezoidal , with inconspicuous subterminal umbones and ...
... taxa . Genus Zulutrigonia gen . nov . Type species . Trigonia ( Rutitrigonia ) pongolensis Rennie , 1936 ; by original designation herein . Diagnosis Shell medium sized , subtrapezoidal , with inconspicuous subterminal umbones and ...
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... taxa , combinations , synonyms , etc. , when used for the first time , must be followed by the appropriate Latin ... taxon without intervening punctuation and not be abbreviated ; if the year is added , a comma must separate author's ...
... taxa , combinations , synonyms , etc. , when used for the first time , must be followed by the appropriate Latin ... taxon without intervening punctuation and not be abbreviated ; if the year is added , a comma must separate author's ...
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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