Annals of the South African Museum, Volume 73The Museum, 1977 - Natual history |
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Page 22
... diameter at mouth Gonotheca , male , length maximum diameter Gonotheca , female , length 0,34 0,44 0,38-0,50 0,10-0,20 0,66-0,83 0,17-0,20 0,84 -1,12 0,55-0,66 1,30-1,48 0,98-1,21 Remarks maximum diameter ( including spur ) There is ...
... diameter at mouth Gonotheca , male , length maximum diameter Gonotheca , female , length 0,34 0,44 0,38-0,50 0,10-0,20 0,66-0,83 0,17-0,20 0,84 -1,12 0,55-0,66 1,30-1,48 0,98-1,21 Remarks maximum diameter ( including spur ) There is ...
Page 297
... diameter ribbing becomes blunter and the tubercles more bullate . The umbilical tubercles disappear at a diameter of c . 225 mm , whereas in some specimens the lateral ones , which have now migrated closer to the venter , become ...
... diameter ribbing becomes blunter and the tubercles more bullate . The umbilical tubercles disappear at a diameter of c . 225 mm , whereas in some specimens the lateral ones , which have now migrated closer to the venter , become ...
Page 318
... diameter . At a slightly larger diameter the ribs become increasingly differentiated over the venter . Initially this appears as a mere flattening along the siphonal line , but at larger diameters the ribs are distinctly interrupted ...
... diameter . At a slightly larger diameter the ribs become increasingly differentiated over the venter . Initially this appears as a mere flattening along the siphonal line , but at larger diameters the ribs are distinctly interrupted ...
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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