Annals of the South African MuseumThe Museum, 1989 - Natural history |
From inside the book
Results 1-3 of 32
Page 246
... early stage with the protoconch , nepionic constriction , and subsequent early whorls ( e.g. Hyatt 1903 , pl . 43 ( fig . 6 ) ) . The protoconch is globular , wider than high . It is succeeded by depressed , reniform , early whorls ...
... early stage with the protoconch , nepionic constriction , and subsequent early whorls ( e.g. Hyatt 1903 , pl . 43 ( fig . 6 ) ) . The protoconch is globular , wider than high . It is succeeded by depressed , reniform , early whorls ...
Page 262
... early in the ontogeny , the umbilical lobe U , ( Ruzhentsev = I ) divides into two elements through the process of ' Lobenspaltung ' ( see Wiedmann 1970 : 910 , fig . 1 IV ) ( Fig . 15 ) , giving rise to U1U1d of typical hoplitid ...
... early in the ontogeny , the umbilical lobe U , ( Ruzhentsev = I ) divides into two elements through the process of ' Lobenspaltung ' ( see Wiedmann 1970 : 910 , fig . 1 IV ) ( Fig . 15 ) , giving rise to U1U1d of typical hoplitid ...
Page 278
... early stage with the protoconch and subsequent early whorls . This can be seen in NMB D941 / 7 ( Fig . 23E - F ) , NMB D1150 ( Fig . 24 ) , SAS Z680 , SAM - PCZ6190 ( Fig . 23C - D ) , NMB D1151 ( Fig . 25 ) . The protoconch is globular ...
... early stage with the protoconch and subsequent early whorls . This can be seen in NMB D941 / 7 ( Fig . 23E - F ) , NMB D1150 ( Fig . 24 ) , SAS Z680 , SAM - PCZ6190 ( Fig . 23C - D ) , NMB D1151 ( Fig . 25 ) . The protoconch is globular ...
Contents
List of species referred to Placenticeratidae | 384 |
Acknowledgements | 391 |
241 | 393 |
Copyright | |
1 other sections not shown
Other editions - View all
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