Annals of the South African MuseumThe Museum, 1989 - Natural history |
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Page 292
... ( macroconch ) ( Figs 40-41 ) to broadly rounded ovoid , e.g. SAM - PCZ6202 ( macroconch ) and NMB D1151 / 5 ( microconch ) ( Figs 42-43 ) ( also Figs 44-46B ) . Type 2. In this form the greater part of the phragmocone remains smooth ...
... ( macroconch ) ( Figs 40-41 ) to broadly rounded ovoid , e.g. SAM - PCZ6202 ( macroconch ) and NMB D1151 / 5 ( microconch ) ( Figs 42-43 ) ( also Figs 44-46B ) . Type 2. In this form the greater part of the phragmocone remains smooth ...
Page 306
... ( macroconch ) , SAS Z202 ( macroconch ) ( Figs 57-58 ) , NMB D941 / 2 ( micro- conch ) ( Fig . 59 ) , NMB D1267 ( microconch ) ( Figs 60-61 ) , SAM - PCZ6196 ( microconch ) ( Figs 62-63 ) , and NMB D925 / 3 ( macroconch ) ( Figs 64-65 ) ...
... ( macroconch ) , SAS Z202 ( macroconch ) ( Figs 57-58 ) , NMB D941 / 2 ( micro- conch ) ( Fig . 59 ) , NMB D1267 ( microconch ) ( Figs 60-61 ) , SAM - PCZ6196 ( microconch ) ( Figs 62-63 ) , and NMB D925 / 3 ( macroconch ) ( Figs 64-65 ) ...
Page 307
... ( macroconch ) ( Figs 76-77 ) , Z1021 ( macroconch ) ( Fig . 78 ) , Z187 ( microconch ) ( Fig . 79 ) ( see also Figs 80-81 ) . Type 7. A few specimens , e.g. PCZ6215 ( Fig . 82 ) show a very strong increase in ornament , passing rapidly ...
... ( macroconch ) ( Figs 76-77 ) , Z1021 ( macroconch ) ( Fig . 78 ) , Z187 ( microconch ) ( Fig . 79 ) ( see also Figs 80-81 ) . Type 7. A few specimens , e.g. PCZ6215 ( Fig . 82 ) show a very strong increase in ornament , passing rapidly ...
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Common terms and phrases
adult adventive lobe Albian ammonites Atlantic Benson body chamber bottom depth Campanian Cape Town catch rates Cenomanian Central Asia Chiplonkar & Ghare compressed Coniacian continental diameter Diaphus dimorphism distribution Engonoceratidae fauna flanks genus Group holotype Hoplitoplacenticeras Hulley Hyatt Hypengonoceras decaryi Collignon Iljin intraspecific variation isobath Karamaites Kennedy & Wright Klinger Lampanyctodes hectoris lanternfish lateral lobe lateral ornament lateral tubercles Maastrichtian Macroconch Madagascar Marine Metaplacenticeras Michailova Microconch with type myctophid oceanic ontogenetic changes ontogeny Orange Shelf ostracod Parengonoceras Paulcke pelagic phragmocone Placenticeras kaffrarium Etheridge Placenticeras polyopsis Placenticeratidae polyopsis Dujardin Proplacenticeras pseudoceanic ribs saddle Santonian separated Shannon shell smooth South African Museum south-western Africa southern Benguela region Spath specimens specimens.h¹ stage stations subkaffrarium sutural ontogeny suture suture line SW Cape temperature text-fig Turonian Type species umbilical tubercles umbilicus umkwelanense Upper Albian Upper Campanian Upper Cretaceous upwelling venter ventral clavi Whatley whorl section Wiedmann Zululand