Annals of the South African Museum: Annale Van Die Suid-Afrikaanse MuseumWest, Newman & Company for the trustees of the Museum, 1990 - Natural history |
From inside the book
Results 1-2 of 2
Page 20
... marked in pencil on the back of each illustration . 5. REFERENCES cited in text and synonymies should all be included in the list at the end of the paper , using the Harvard System ( ibid . , idem , loc . cit . , op . cit . are not ...
... marked in pencil on the back of each illustration . 5. REFERENCES cited in text and synonymies should all be included in the list at the end of the paper , using the Harvard System ( ibid . , idem , loc . cit . , op . cit . are not ...
Page 23
... marked departure from the conser- vative taxonomy of that period , Van Hoepen ( 1929 ) introduced a number of subfamilies and genera for trigoniid bivalves from the Cretaceous of Zululand . Among these was the genus Rutitrigonia ...
... marked departure from the conser- vative taxonomy of that period , Van Hoepen ( 1929 ) introduced a number of subfamilies and genera for trigoniid bivalves from the Cretaceous of Zululand . Among these was the genus Rutitrigonia ...
Other editions - View all
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