Annals of the South African MuseumThe Museum, 1989 - Natural history |
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Page 305
... umbilical and lateral ornament of typical ' kaffrarium ' type . The venter changes from flat and smooth to tuberculate to rounded and smooth , or directly from flat and ... UMBILICAL TUBERCLES Fig CRETACEOUS FAUNAS FROM SOUTH AFRICA 305.
... umbilical and lateral ornament of typical ' kaffrarium ' type . The venter changes from flat and smooth to tuberculate to rounded and smooth , or directly from flat and ... UMBILICAL TUBERCLES Fig CRETACEOUS FAUNAS FROM SOUTH AFRICA 305.
Page 306
... umbilical tubercles . The whorl section is strongly subtrigonal with maximum whorl breadth at the site of the umbilical tubercle , but breadth to height ratios vary widely . This is the typical ' subkaffrarium ' type of sculpture where ...
... umbilical tubercles . The whorl section is strongly subtrigonal with maximum whorl breadth at the site of the umbilical tubercle , but breadth to height ratios vary widely . This is the typical ' subkaffrarium ' type of sculpture where ...
Page 406
... umbilical tubercles and strong ventrolateral tubercles joined by different patterns of ribbing ; suture somewhat poorly developed placenticeratan type . Age Cenomanian - Turonian Remarks As compared to other members of the subfamily ...
... umbilical tubercles and strong ventrolateral tubercles joined by different patterns of ribbing ; suture somewhat poorly developed placenticeratan type . Age Cenomanian - Turonian Remarks As compared to other members of the subfamily ...
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