Annals of the South African MuseumThe Museum, 1989 - Natural history |
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Page 356
... diagnosis almost word for word . Kennedy ( 1986 ) provided a very detailed discussion of Hoplitoplacenticeras , based on examination of Schlüter's ( 1867 , 1871-1876 ) type material from Northern Germany . Apart from expanding on the ...
... diagnosis almost word for word . Kennedy ( 1986 ) provided a very detailed discussion of Hoplitoplacenticeras , based on examination of Schlüter's ( 1867 , 1871-1876 ) type material from Northern Germany . Apart from expanding on the ...
Page 400
... Diagnosis Shells are compressed with narrow , funnel - shaped umbilicus , smooth venter and slightly curved flanks . The umbilical tubercles are mammiform , pointed on the shell and blunt on internal casts . The external tubercles are ...
... Diagnosis Shells are compressed with narrow , funnel - shaped umbilicus , smooth venter and slightly curved flanks . The umbilical tubercles are mammiform , pointed on the shell and blunt on internal casts . The external tubercles are ...
Page 406
... Diagnosis Evolute ; cross - section broadly elliptical tending to be subcircular to circular ; venter broadly rounded with clavi which may be tuberculate ; strong spinose umbilical tubercles and strong ventrolateral tubercles joined by ...
... Diagnosis Evolute ; cross - section broadly elliptical tending to be subcircular to circular ; venter broadly rounded with clavi which may be tuberculate ; strong spinose umbilical tubercles and strong ventrolateral tubercles joined by ...
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