Annals of the South African Museum, Volume 73The Museum, 1977 - Natual history |
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Page 219
... coiling , and as Casey ( 1960 : 21 ) indicated , most of the Georgian ( Gruzinian ) ancyloceratids described by Rouchadzé ( 1933 ) are generically distinct from Ancyloceras and should probably be referred to Pedioceras or some genus ...
... coiling , and as Casey ( 1960 : 21 ) indicated , most of the Georgian ( Gruzinian ) ancyloceratids described by Rouchadzé ( 1933 ) are generically distinct from Ancyloceras and should probably be referred to Pedioceras or some genus ...
Page 256
... coiling predominantly crioceratitid , but in early species the body chamber may be distinctly uncoiled , giving rise to ancyloceratid or to aspinoceratid forms . Ornament on phragmocone consists of plain ribbing with occasional ...
... coiling predominantly crioceratitid , but in early species the body chamber may be distinctly uncoiled , giving rise to ancyloceratid or to aspinoceratid forms . Ornament on phragmocone consists of plain ribbing with occasional ...
Page 268
... Coiling is open , crioceratitid , with the whorls not touching . The body chamber becomes a little detached . The whorl section is compressed with a rounded dorsum lacking a zone of impression , a broadly rounded umbilical edge , weakly ...
... Coiling is open , crioceratitid , with the whorls not touching . The body chamber becomes a little detached . The whorl section is compressed with a rounded dorsum lacking a zone of impression , a broadly rounded umbilical edge , weakly ...
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Common terms and phrases
abbreviations adcauline adnate Africa Albian Allman Ammonites Ammonoidea Amphipoda Ancyloceras Adouliceras aperture Aptian Aptian III-IV Australiceras author's name authors Berkeley bicuspidata BMNH body chamber CALIFORNIA LIBRARY Campanian Cape Town capensis Casey coiling Collignon constrictions Cretaceous Crioceras crozier described Description diameter distal dorsal dorsum Eoxenopoides reuningi fauna female figures flanks fossil genus Geol gonothecae Haughton Hoepen holotype hydrocladia hydroids hydrothecae inner whorls internode Kerguelen KLINGER lateral Lectotype length lobe locality 168 Lower Aptian Maastrichtian Madagascar margin material metres Millard Mozambique neglectus nematothecae occur ornament paratypes pedicel phragmocone pipids Pseudophyllites referred ribs rounded Saghalinites Santonian scientific name segment separated Sertularella seta shaft Sinzow South African Museum southern Spath species specimen spines Stechow stem subsimbirskense SUID-AFRIKAANSE MUSEUM Symplectoscyphus Synonymy Tetragonites text-fig Therocephalia Tonohamites Totton Toxoceratoides Tropaeum tubercles umbilical Umzamba UNIVERSITY OF CALIFORNIA Upper Aptian venter ventral Vervoort whorl section Wiedmann Xenopus Zool Zululand