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 178
... shoulder and are gently convex and strongly prorsiradiate on the flanks . They sweep gently back across the ventro - lateral shoulder to form a gentle concave ventral sinus . The internal mould is smooth . Four to five constrictions per ...
... shoulder and are gently convex and strongly prorsiradiate on the flanks . They sweep gently back across the ventro - lateral shoulder to form a gentle concave ventral sinus . The internal mould is smooth . Four to five constrictions per ...
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Common terms and phrases
abbreviations adcauline adnate Africa Albian Allman Ammonites Ammonoidea Amphipoda Ancyloceras Adouliceras aperture Aptian Australiceras author's name authors bicuspidata BMNH body chamber cala Cape Town Casey Cenomanian coiling Collignon constrictions Cretaceous Crioceras crozier described Description distal dorsal dorsum Eoxenopoides reuningi fauna figures flanks fossil frogs Gastropoda genus geol gonothecae H. L. Clark Haughton Helicancyloceras Hoepen holotype hydrocladia hydroids hydrothecae indra internode italics Kerguelen Kossmat Late Santonian lateral Lectotype length lobe locality Lower Aptian Maastrichtian material metres Millard Mozambique nematothecae occur ornament paratypes Pedicel phragmocone pipids Pondoland Pseudophyllites references ribs rounded Saghalinites Santonian Santonian to early scientific name segments separated Sertularella shaft shoulder Sinzow South African Museum southern Spath species specimens spines Stechow stem subheadings subtimotheanus SUID-AFRIKAANSE MUSEUM suture Symplectoscyphus Synonymy Tetragonites text-fig Tonohamites Totton Toxoceratoides transverse Tropaeum tubercles Upper Aptian venter ventral vertebrae Vervoort Wb/Wh whorl section Wiedmann Xenopus Zool Zululand Zygophylax