Annals of the South African Museum, Volume 73The Museum, 1977 - Natual history |
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Page 229
... shaft and crozier may tentatively be referred to the two species . However , due to the extreme variability , and the absence of any complete specimens for definite allocation , the shafts and croziers are referred in open nomenclature ...
... shaft and crozier may tentatively be referred to the two species . However , due to the extreme variability , and the absence of any complete specimens for definite allocation , the shafts and croziers are referred in open nomenclature ...
Page 241
... shaft , ornament consists of narrow , low , slightly prorsiradiate ribs only , separated by wider interspaces . Average rib density is about sixteen to eighteen per dorso - ventral diameter . On the distal half to third of the shaft ...
... shaft , ornament consists of narrow , low , slightly prorsiradiate ribs only , separated by wider interspaces . Average rib density is about sixteen to eighteen per dorso - ventral diameter . On the distal half to third of the shaft ...
Page 250
... shaft and a slightly flared rib just before the aperture . A few paired ribs are more prominent than the others ... shaft Wh . at proximal end of shaft Wb . in crozier Wh . in crozier Wb . at aperture Wh . at aperture . " • 54 • • 57 77 ...
... shaft and a slightly flared rib just before the aperture . A few paired ribs are more prominent than the others ... shaft Wh . at proximal end of shaft Wb . in crozier Wh . in crozier Wb . at aperture Wh . at aperture . " • 54 • • 57 77 ...
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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