Annals of the South African MuseumThe Museum, 1989 - Natural history |
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Page 344
... Zululand belong to a single extremely variable but phylogenetically conservative species , for which we select the name Placenticeras kaffrarium . This had already been suggested on earlier occasions ( Klinger & Kennedy 1980b , 1980c ) ...
... Zululand belong to a single extremely variable but phylogenetically conservative species , for which we select the name Placenticeras kaffrarium . This had already been suggested on earlier occasions ( Klinger & Kennedy 1980b , 1980c ) ...
Page 382
... Zululand 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 ...
... Zululand 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 ...
Page 383
... Zululand ) , Eulopho- ceras ( unpublished data Zululand ) , Submortoniceras ( Klinger & Kennedy 1980a ) , etc. Arnould - Saget ( 1956 ) attempted to explain the extreme intraspecific varia- tion in Knemiceras from southern Tunisia ...
... Zululand ) , Eulopho- ceras ( unpublished data Zululand ) , Submortoniceras ( Klinger & Kennedy 1980a ) , etc. Arnould - Saget ( 1956 ) attempted to explain the extreme intraspecific varia- tion in Knemiceras from southern Tunisia ...
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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