Annals of the South African Museum, Volume 73The Museum, 1977 - Natual history |
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Page 158
... shoulder abruptly rounded . The flanks are distinctly flattened and convergent , the ventro- lateral shoulder abruptly rounded , and the venter broad and flattened . The shell surface is finely striate . These striae pass straight ...
... shoulder abruptly rounded . The flanks are distinctly flattened and convergent , the ventro- lateral shoulder abruptly rounded , and the venter broad and flattened . The shell surface is finely striate . These striae pass straight ...
Page 166
... shoulder is abruptly rounded whilst the sides are somewhat flattened and convergent , the ventro - lateral shoulders ... shoulder and are markedly prorsiradiate and slightly concave across the flanks ; they flex distinctly backwards over ...
... shoulder is abruptly rounded whilst the sides are somewhat flattened and convergent , the ventro - lateral shoulders ... shoulder and are markedly prorsiradiate and slightly concave across the flanks ; they flex distinctly backwards over ...
Page 190
... shoulder and are strongly prorsiradiate and faintly convex on the flank , passing backwards across the shoulder and running almost normally across the venter . There is a marked apertural constriction . The suture line is poorly visible ...
... shoulder and are strongly prorsiradiate and faintly convex on the flank , passing backwards across the shoulder and running almost normally across the venter . There is a marked apertural constriction . The suture line is poorly visible ...
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Common terms and phrases
abbreviations adcauline adnate Albian Allman Ammonites Ammonoidea Amphipoda Ancyloceras Adouliceras ancyloceratid aperture Aptian Aptian III-IV Australiceras author's name authors Barremian bicuspidata BMNH body chamber cala Campanian Cape Town capensis Casey Cenomanian coiling Collignon constrictions Cretaceous Crioceras crozier described Description distal dorsal dorsum Eoxenopoides reuningi fauna figures flanks fossil Gastropoda genus gonothecae Haughton Helicancyloceras Nonyaniceras Hoepen holotype hydrocladia hydrothecae inner whorls internode Kerguelen Kossmat lateral Lectotype length lobe locality 168 locality 170 Lower Aptian Maastrichtian Madagascar material metres Millard Mozambique mozambiquense nematothecae occur ornament paratypes Pedicel phragmocone pipids Pseudophyllites referred ribs rounded Saghalinites Santonian scientific name segment separated Sertularella seta shaft shoulder Sinzow South African Museum southern Spath species specimen spines Stechow stem subheadings subsimbirskense SUID-AFRIKAANSE MUSEUM suture line Symplectoscyphus Synonymy Tetragonites text-fig Tonohamites Totton Toxoceratoides Tropaeum tubercles umbilical Umzamba Upper Aptian venter ventral Vervoort Wb/Wh whorl section Wiedmann Xenopus Zululand