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 ...
Contents
List of species referred to Placenticeratidae | 384 |
Acknowledgements | 391 |
241 | 393 |
Copyright | |
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Common terms and phrases
9 figs adult adventive lobe Albian ammonite Anaplacenticeras body chamber Campanian of Germany Cenomanian Cenomanian of Central Cenomanian-Turonian of India Central Asia Chiplonkar & Ghare Cobban Collignon 1965a compressed Coniacian diameter dimorphism Engonoceratidae flanks forms fritschi de Grossouvre genus Gissarites Grossouvre Hengestites holotype Hoplitidae Hoplitoplacenticeras Hypengonoceras decaryi Collignon Iljin incision India Chiplonkar intraspecific variation Karamaites Kennedy & Wright Klinger Knemiceras Kopetdagites Kossmat lateral lobe lateral ornament lateral tubercles lectotype Luppov Maastrichtian Macroconch Madagascar Metaplacenticeras Michailova Microconch with type ontogenetic ontogenetic changes ontogenetic stage Parengonoceras Paulcke phragmocone Placenticeras fritschi Placenticeras kaffrarium Etheridge Placenticeras polyopsis Dujardin Placenticeras syrtale Morton Placenticeratidae Proplacenticeras Reeside ribs rounded Ruzhentsev Santonian Santonian of France scaphitoid uncoiling Schlüter shell Spath Stantonoceras subkaffrarium sutural ontogeny suture line text-fig ticeras Turonian type 4 ornament Type species umbilical edge umbilical tubercles umbilical wall umbilicus Upper Albian Upper Campanian Upper Cretaceous ventral clavi whorl section Wiedmann Zululand