Annals of the South African MuseumThe Museum, 1989 - Natural history |
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Page 260
... studies of the sutures . 3. Number of lobes and saddles in the adult external suture . The family Placenticeratidae is one of several groups of ammonites referred to as ' Pseudoceratites of the Cretaceous ' by Hyatt ( 1903 ) in his ...
... studies of the sutures . 3. Number of lobes and saddles in the adult external suture . The family Placenticeratidae is one of several groups of ammonites referred to as ' Pseudoceratites of the Cretaceous ' by Hyatt ( 1903 ) in his ...
Page 264
... studies and can give no verdict on the sutural status of the lobe - whether it in fact is a real ( new ) lobe or merely an enlarged incision , similar to that in the external saddle ; we suspect it to be the latter . Whatever the case ...
... studies and can give no verdict on the sutural status of the lobe - whether it in fact is a real ( new ) lobe or merely an enlarged incision , similar to that in the external saddle ; we suspect it to be the latter . Whatever the case ...
Page 365
... studies have as yet been undertaken on Hypengonoceras , neither is the available material from Zululand suitably preserved for such studies . As far as the general outline of the external suture of H. warthi is concerned , however ...
... studies have as yet been undertaken on Hypengonoceras , neither is the available material from Zululand suitably preserved for such studies . As far as the general outline of the external suture of H. warthi is concerned , however ...
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