Annals of the South African MuseumThe Museum, 1989 - Natural history |
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Page 356
... ribs , nearly straight , bearing 2 rows of ventrolateral tubercles , of which outer row may be large and clavate ; ribs cross venter transversely and may have trace of siphonal tubercle . Genus is probably too widely drawn ' . Kennedy ...
... ribs , nearly straight , bearing 2 rows of ventrolateral tubercles , of which outer row may be large and clavate ; ribs cross venter transversely and may have trace of siphonal tubercle . Genus is probably too widely drawn ' . Kennedy ...
Page 400
... ribs , bifurcating on to the outer half of the flank . On the point of division of the ribs , tubercle - like swellings may arise . The suture line at a diameter of 40 mm and upwards on the flanks is relatively deep with long side ...
... ribs , bifurcating on to the outer half of the flank . On the point of division of the ribs , tubercle - like swellings may arise . The suture line at a diameter of 40 mm and upwards on the flanks is relatively deep with long side ...
Page 407
... ribs and in its cross - section is variable with shell growth from compressed to circular . The genus is named after Malwa , the region in which the Bagh Beds occur . ' Placentoscaphites Chiplonkar & Ghare , 1977 : 68-69 ' Genotype ...
... ribs and in its cross - section is variable with shell growth from compressed to circular . The genus is named after Malwa , the region in which the Bagh Beds occur . ' Placentoscaphites Chiplonkar & Ghare , 1977 : 68-69 ' Genotype ...
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