Annals of the South African MuseumThe Museum, 1989 - Natural history |
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Page 268
... Maastrichtian of Central Asia . It has a very narrow venter and , in many respects , resembles the early Placenticeras , with prominent umbilical tubercles but hardly any lateral ornament . Iljin ( 1958 ) maintained that the sixth ...
... Maastrichtian of Central Asia . It has a very narrow venter and , in many respects , resembles the early Placenticeras , with prominent umbilical tubercles but hardly any lateral ornament . Iljin ( 1958 ) maintained that the sixth ...
Page 356
... Maastrichtian as is Placenticeras during the Cenomanian to Maastrichtian . As far as the shape of the whorl section is concerned ( compressed or inflated ) , the variation in Hoplitoplacenticeras matches that of Placenticeras- compare ...
... Maastrichtian as is Placenticeras during the Cenomanian to Maastrichtian . As far as the shape of the whorl section is concerned ( compressed or inflated ) , the variation in Hoplitoplacenticeras matches that of Placenticeras- compare ...
Page 390
... Maastrichtian of Egypt ( = scaphitid ) . * Hoplitoplacenticeras besairiei Collignon , 1970 ( p . 77 , pl . 638 ( figs 2349-50 ) ) — figure 2349 herein designated lectotype . Upper Campanian of Madagascar . Hoplitoplacenticeras ...
... Maastrichtian of Egypt ( = scaphitid ) . * Hoplitoplacenticeras besairiei Collignon , 1970 ( p . 77 , pl . 638 ( figs 2349-50 ) ) — figure 2349 herein designated lectotype . Upper Campanian of Madagascar . Hoplitoplacenticeras ...
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