Annals of the South African MuseumThe Museum, 1989 - Natural history |
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Page 262
... lateral lobe L ( Ruzhentsev U ) ; division of the saddle E / L ( Ruzhentsev V / U ) ; and , division of the saddle L / U2 ( Ruzhentsev U1 / U1 ) . According to Mirzoev ( 1967 ) and Michailova ( 1974 , 1978 ) , the lateral lobe L ...
... lateral lobe L ( Ruzhentsev U ) ; division of the saddle E / L ( Ruzhentsev V / U ) ; and , division of the saddle L / U2 ( Ruzhentsev U1 / U1 ) . According to Mirzoev ( 1967 ) and Michailova ( 1974 , 1978 ) , the lateral lobe L ...
Page 264
... lobes in the former , as compared to a mere , albeit large , incision of the lateral saddle E / L in the latter . The lobe in the saddle L / U2 ( fourth lateral lobe ) , termed U1n by Michailova ( 1974 , 1978 ) , has been used as a ...
... lobes in the former , as compared to a mere , albeit large , incision of the lateral saddle E / L in the latter . The lobe in the saddle L / U2 ( fourth lateral lobe ) , termed U1n by Michailova ( 1974 , 1978 ) , has been used as a ...
Page 357
... lateral lobe remains more or less symmetrically trifid and independent , and the first lateral saddle ( E / L ) entire . In forms where placenticeratid features dominate , i.e. , typically compressed whorl section and involute coiling ...
... lateral lobe remains more or less symmetrically trifid and independent , and the first lateral saddle ( E / L ) entire . In forms where placenticeratid features dominate , i.e. , typically compressed whorl section and involute coiling ...
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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