Annals of the South African MuseumThe Museum, 1989 - Natural history |
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Page 362
... Hypengonoceras was introduced in characteristically brief style by Spath ( 1922 : 112 ) as follows : ' The Engonoceratidae include Hypengonoceras , nov . , proposed for the Albian " Placenticeras " ( type : Pl . warthi , Kossmat ...
... Hypengonoceras was introduced in characteristically brief style by Spath ( 1922 : 112 ) as follows : ' The Engonoceratidae include Hypengonoceras , nov . , proposed for the Albian " Placenticeras " ( type : Pl . warthi , Kossmat ...
Page 364
... Hypengonoceras ibericum apart , Hypengonoceras is now no longer as simple to interpret as initially conceived . Two questions have to be answered : Is Hypengonoceras a member of the Engonoceratidae or of the Placenticeratidae ? If the ...
... Hypengonoceras ibericum apart , Hypengonoceras is now no longer as simple to interpret as initially conceived . Two questions have to be answered : Is Hypengonoceras a member of the Engonoceratidae or of the Placenticeratidae ? If the ...
Page 365
1968 : 626 ) identified as a Hypengonoceras , and later ( 1970 : 1044 ) compared with Hypengonoceras warthi as far as the narrow bifid saddles are concerned , and with Hypengonoceras decaryi Collignon and H. fauremuretae Collignon as ...
1968 : 626 ) identified as a Hypengonoceras , and later ( 1970 : 1044 ) compared with Hypengonoceras warthi as far as the narrow bifid saddles are concerned , and with Hypengonoceras decaryi Collignon and H. fauremuretae Collignon as ...
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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