Annals of the South African Museum, Volume 96The Museum, 1985 - Natural history |
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Page 273
... whorl height Ho = whorl height opposite to aperture Hm = Wh / Wb = minimum whorl height relation between whorl height and whorl breadth . Dimensions of specimens are given in millimetres . STRATIGRAPHIC SYNTHESIS All ammonites studied ...
... whorl height Ho = whorl height opposite to aperture Hm = Wh / Wb = minimum whorl height relation between whorl height and whorl breadth . Dimensions of specimens are given in millimetres . STRATIGRAPHIC SYNTHESIS All ammonites studied ...
Page 304
... Whorl section of Toxoceratoides ? sp . , CPBA 11049. × 2,5 . C - D . Whorl sections of Toxoceratoides cf. biplex , CPBA 10910. × 2,5 . Discussion The single specimen compares well with that of Von Koenen ( 1902 , pl . 49 ( figs 10b ...
... Whorl section of Toxoceratoides ? sp . , CPBA 11049. × 2,5 . C - D . Whorl sections of Toxoceratoides cf. biplex , CPBA 10910. × 2,5 . Discussion The single specimen compares well with that of Von Koenen ( 1902 , pl . 49 ( figs 10b ...
Page 326
... whorl . = Coiling in the first half of the planispiral whorl is irregular , with lateral deviations , but then becomes regular . In most specimens the planispiral whorl embraces the helix tightly , leaving no openings . The first ...
... whorl . = Coiling in the first half of the planispiral whorl is irregular , with lateral deviations , but then becomes regular . In most specimens the planispiral whorl embraces the helix tightly , leaving no openings . The first ...
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Common terms and phrases
abbreviations Aedeagus Age and distribution Agulhas Bank Alcyonium variabile ammonite Ancyloceras apex apical Aptian Bairdoppilata Barremian Barremian of western Bay borehole bicuspidata Brachycythere Campanian Cape Peninsula Cape Town Cenomanian Colchidites vulanensis Colophon Coniacian CPBA Cretaceous cruickshanki Cypraea Cypraeidae Cythereis Cytherelloidea described Dingle False Bay faunas female fuscorubra genera genus Gibberleberis Group habitat haughtoni Haughtonileberis Helicancylus Heteroceras holotype Indet iutsui J(c)-1 borehole K. H. Barnard Kakabadze 1971a Klinger & Kennedy labrum Lampanyctus lateral locality longicaudata Maastrichtian male mandibles mantle margin material Metalcyonium morphology Mtubatuba ornament ostracod outcrops paratypes patagonicum pondolandensis posterior pronotum range referred region ribs Richards Bay Río Mayer Rouchadzé 1933 samples Santonian sclerites shaft shell South African Museum south-east Africa specimens stations stokoei subfamily suckers Swartberg Table taxa text-fig tibia Tonohamites Toxoceratoides tubercles Turonian Umzamba bed umzambaensis Upper Barremian variability Ventral process vulanensis australis western Georgia whorl section Zululand