Annals of the South African Museum, Volume 73The Museum, 1977 - Natual history |
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Page 158
... flanks and venter . There are five or six collar - like ribs and associated constrictions per whorl in smaller specimens ; adults bear seven to eight , with some crowding on the body chamber . Collars are faint on the flanks , but ...
... flanks and venter . There are five or six collar - like ribs and associated constrictions per whorl in smaller specimens ; adults bear seven to eight , with some crowding on the body chamber . Collars are faint on the flanks , but ...
Page 171
... flanks in a markedly prorsiradiate direction , flexing gently backwards across the upper flank and shoulder to form a shallow concave sinus over the siphonal area . Middle growth stages , 30 to 60 mm diameter ( Figs 12D , 14A - F ) The ...
... flanks in a markedly prorsiradiate direction , flexing gently backwards across the upper flank and shoulder to form a shallow concave sinus over the siphonal area . Middle growth stages , 30 to 60 mm diameter ( Figs 12D , 14A - F ) The ...
Page 264
... flanks and broad and high over the venter . Part of the aperture is preserved . It appears to have been simple , and somewhat constricted . The suture is very incised and dentritic , consisting of a trifid L , U and I. The lateral lobe ...
... flanks and broad and high over the venter . Part of the aperture is preserved . It appears to have been simple , and somewhat constricted . The suture is very incised and dentritic , consisting of a trifid L , U and I. The lateral lobe ...
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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