Annals of the South African MuseumThe Museum, 1989 - Natural history |
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Page 259
... range of the family . At the same time the genus Metaplacenticeras arose . It has approxi- mately the same stratigraphic range as Hoplitoplacenticeras but is said to differ in possessing a median keel at some stage of growth . This is ...
... range of the family . At the same time the genus Metaplacenticeras arose . It has approxi- mately the same stratigraphic range as Hoplitoplacenticeras but is said to differ in possessing a median keel at some stage of growth . This is ...
Page 358
... ranges in the Upper Campanian in Japan ( Matsumoto 1982a , 1982b ) , but in North America Hoplitoplacenticeras seems ... range of overlap . Matsumoto ( 1984 : 20-21 ) recently discussed the genus Metaplacenticeras and alleged that a true ...
... ranges in the Upper Campanian in Japan ( Matsumoto 1982a , 1982b ) , but in North America Hoplitoplacenticeras seems ... range of overlap . Matsumoto ( 1984 : 20-21 ) recently discussed the genus Metaplacenticeras and alleged that a true ...
Page 438
... range Miocene to Recent ( southern hemisphere ) , and a possible record in Oligocene of the NE Atlantic ( Table 1 ) . This species occurs in Pleistocene - Recent sediments off south - western Africa , where it has a known depth range 2 ...
... range Miocene to Recent ( southern hemisphere ) , and a possible record in Oligocene of the NE Atlantic ( Table 1 ) . This species occurs in Pleistocene - Recent sediments off south - western Africa , where it has a known depth range 2 ...
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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.hı 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