Annals of the South African Museum, Volume 73The Museum, 1977 - Natual history |
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Page 193
... consists of fine transverse growth striae and longitudinal ridges which combine to produce a reticulate pattern which is particularly conspicuous on the venter . The transverse striae arise at the umbilical seam , pass straight up the ...
... consists of fine transverse growth striae and longitudinal ridges which combine to produce a reticulate pattern which is particularly conspicuous on the venter . The transverse striae arise at the umbilical seam , pass straight up the ...
Page 295
... consists of slightly rursiradiate ribs only , separated by interspaces of similar width . Occasional bifurcations occur at midflank . The outer whorl is abraded and encrusted by epizoans , but appears to have borne similar ribs . The ...
... consists of slightly rursiradiate ribs only , separated by interspaces of similar width . Occasional bifurcations occur at midflank . The outer whorl is abraded and encrusted by epizoans , but appears to have borne similar ribs . The ...
Page 335
... consists of about one whorl . Coiling becomes planispiral at an early stage . The whorl section is rounded throughout . Ornament consists of very fine ribs , approximately twenty - five per half whorl , separated by interspaces of ...
... consists of about one whorl . Coiling becomes planispiral at an early stage . The whorl section is rounded throughout . Ornament consists of very fine ribs , approximately twenty - five per half whorl , separated by interspaces of ...
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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