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
... COOPER Department of Geology , University of Durban - Westville , Natal ( With 1 figure ) [ MS accepted 12 September 1989 ] ABSTRACT Trigonia ( Rutitrigonia ) pongolensis Rennie lacks the characters of Rutitrigonia , and is made the ...
... COOPER Department of Geology , University of Durban - Westville , Natal ( With 1 figure ) [ MS accepted 12 September 1989 ] ABSTRACT Trigonia ( Rutitrigonia ) pongolensis Rennie lacks the characters of Rutitrigonia , and is made the ...
Page 26
... ( Cooper & McCarthy 1988 ) , which here is of late Aptian age and corresponds broadly with Locality 164 of Kennedy & Klinger ( 1975 ) . Description Shell medium sized ( maximum length about 60 mm ) , longer than high ( H / L = 0,73-0,80 ) ...
... ( Cooper & McCarthy 1988 ) , which here is of late Aptian age and corresponds broadly with Locality 164 of Kennedy & Klinger ( 1975 ) . Description Shell medium sized ( maximum length about 60 mm ) , longer than high ( H / L = 0,73-0,80 ) ...
Page 28
... COOPER , M. R. & MCCARTHY , M. J. 1988. The stratigraphy of the Uloa Formation . Extended Abstract , Geocongress '88 , Durban : 121–124 . Durban : Geological Society of South Africa . Cox , L. R. 1952. Notes on the Trigoniidae , with ...
... COOPER , M. R. & MCCARTHY , M. J. 1988. The stratigraphy of the Uloa Formation . Extended Abstract , Geocongress '88 , Durban : 121–124 . Durban : Geological Society of South Africa . Cox , L. R. 1952. Notes on the Trigoniidae , with ...
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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