Annals of the South African MuseumThe Museum, 1989 - Natural history |
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Page 273
... material . Locality 13 : hill slopes below Riverview compound , Coniacian II - III , SAS H146 / 3 . Locality 16 : small quarry east of track on Lot 71 13567 east of Riverview sugarmill . Coniacian II or III . SAM - uncatalogued material ...
... material . Locality 13 : hill slopes below Riverview compound , Coniacian II - III , SAS H146 / 3 . Locality 16 : small quarry east of track on Lot 71 13567 east of Riverview sugarmill . Coniacian II or III . SAM - uncatalogued material ...
Page 344
... material is not suitable for studying detailed sutural ontogeny . Available sutures are shown in Figures 89-97 to show the variation . Discussion From the above description it is clear that all the Placenticeras from the Coniacian of ...
... material is not suitable for studying detailed sutural ontogeny . Available sutures are shown in Figures 89-97 to show the variation . Discussion From the above description it is clear that all the Placenticeras from the Coniacian of ...
Page 382
... material differs from Collignon's ( 1963 ) holotype in generally having a much smaller umbilicus , but is similar in having a very compressed , trigonal whorl section and virtually smooth flanks . Given the range of intraspecific ...
... material differs from Collignon's ( 1963 ) holotype in generally having a much smaller umbilicus , but is similar in having a very compressed , trigonal whorl section and virtually smooth flanks . Given the range of intraspecific ...
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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