Annals of the South African Museum: Annale Van Die Suid-Afrikaanse MuseumSouth African Museum, 1993 - Natural history |
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Page 186
... whorl height . The term ' rib index ' means the number of ribs present in a distance equal to the whorl height at the middle of the interval measured . Taper index is : Larger whorl height - smaller whorl height Distance between ...
... whorl height . The term ' rib index ' means the number of ribs present in a distance equal to the whorl height at the middle of the interval measured . Taper index is : Larger whorl height - smaller whorl height Distance between ...
Page 220
... whorl section , tabulate venter and the crescentic flank ribs . There is , however , consider- able variation in the strength of the flank ribs , rib index , and whorl breadth to height ratio . The shell may grow to a great size ( e.g. ...
... whorl section , tabulate venter and the crescentic flank ribs . There is , however , consider- able variation in the strength of the flank ribs , rib index , and whorl breadth to height ratio . The shell may grow to a great size ( e.g. ...
Page 260
... whorl breadth to height ratio of 0,46-0,7 , the shell surface smooth or with broad , weak undulations on the dorsal part of the flanks , 2–4 in a distance equal to the whorl height . Dorsum and venter are completely smooth . The whorl ...
... whorl breadth to height ratio of 0,46-0,7 , the shell surface smooth or with broad , weak undulations on the dorsal part of the flanks , 2–4 in a distance equal to the whorl height . Dorsum and venter are completely smooth . The whorl ...
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Common terms and phrases
9 figs ammonite ANSP Arrialoor Baculites sp Baculites vagina Bed 7 G binodose bituberculate lateral ornament BMNH body chamber breadth to height Brunnschweiler 1966 Campanian Cast of original Charter's Creek Rest Collignon 1971 compressed whorl section Creek Rest Camp Crick d'Orbigny dorsal Eubaculiceras Eubaculites carinatus Morton Eubaculites labyrinthicus Morton Eubaculites latecarinatus Brunnschweiler Eubaculites ootacodensis Stoliczka Eubaculites simplex Kossmat Eubaculites vagina Forbes fastigiate venter FAUNAS figured flattened dorsum Geological Survey Giralites height ratio holotype Kennedy & Summesberger lectotype locality 133 locality 20 Maastrichtian I-II Madagascar Matsumoto 1959 mid-flank nomen dubium Ootacod original of Stoliczka Pachydiscus Pondicherry Prairie Bluff Chalk referred Riccardi Santa Cruz Province South Africa South India southern India Spath St Lucia Fm St Lucia Formation Stoliczka 1866 Survey of India suture synonym tabulate venter tabulate ventral keel text-fig tubercles type species typical Upper Maastrichtian Valudavur Formation Western Australia whorl breadth whorl height Zululand