Annals of the South African MuseumThe Museum, 1989 - Natural history |
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Page 264
... Placenticeratidae by their ceratitic suture lines with entire or little divided saddles ( Fig . 17 ) . In some cases , however , such as the genus Parengonoceras Spath , 1924 ( of Engonocera- tidae ) , the sutures are finely incised ...
... Placenticeratidae by their ceratitic suture lines with entire or little divided saddles ( Fig . 17 ) . In some cases , however , such as the genus Parengonoceras Spath , 1924 ( of Engonocera- tidae ) , the sutures are finely incised ...
Page 362
... Placenticeratidae without stating any reasons . Roman ( 1938 : 869 ) put the genus in the family Placenticeratidae . Casey ( 1960 : 208 ) stated of Hypengonoceras ' With its simple , pincer - like endings to the saddles , Hypengonoceras ...
... Placenticeratidae without stating any reasons . Roman ( 1938 : 869 ) put the genus in the family Placenticeratidae . Casey ( 1960 : 208 ) stated of Hypengonoceras ' With its simple , pincer - like endings to the saddles , Hypengonoceras ...
Page 364
... Placenticeratidae ? If the latter , what is its relationship with the early placenticeratids ' Karamaites ' and Hengestites ? Engonoceratidae and Placenticeratidae are generally distinguished by the simplified , ceratitic saddles of ...
... Placenticeratidae ? If the latter , what is its relationship with the early placenticeratids ' Karamaites ' and Hengestites ? Engonoceratidae and Placenticeratidae are generally distinguished by the simplified , ceratitic saddles of ...
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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