Annals of the South African Museum, Volume 73The Museum, 1977 - Natual history |
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Page 219
... Discussion The genus Ancyloceras has become a receptacle for many heteromorphs showing ancyloceratid coiling , and as Casey ( 1960 : 21 ) indicated , most of the Georgian ( Gruzinian ) ancyloceratids described by Rouchadzé ( 1933 ) are ...
... Discussion The genus Ancyloceras has become a receptacle for many heteromorphs showing ancyloceratid coiling , and as Casey ( 1960 : 21 ) indicated , most of the Georgian ( Gruzinian ) ancyloceratids described by Rouchadzé ( 1933 ) are ...
Page 250
... discussion Form 6 Figs 9A , 24 A single specimen , SAM - PCM5328 represents that part of a specimen at the point where the shaft begins curving into a crozier . Three sets of major ribs are present , separated by two to three low ...
... discussion Form 6 Figs 9A , 24 A single specimen , SAM - PCM5328 represents that part of a specimen at the point where the shaft begins curving into a crozier . Three sets of major ribs are present , separated by two to three low ...
Page 304
... Discussion As mentioned above , there is striking similarity between the Zululand specimen and the larger end of Favre's ' Crioceras ' sarasini . The only apparent difference is that the umbilical tubercles in the Patagonian species are ...
... Discussion As mentioned above , there is striking similarity between the Zululand specimen and the larger end of Favre's ' Crioceras ' sarasini . The only apparent difference is that the umbilical tubercles in the Patagonian species are ...
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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