Annals of the South African MuseumThe Museum, 1985 - Natural history |
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Page 172
... whorl over the venter as there are at the umbilical shoulder . There are periodic constrictions , four or five per whorl ; narrow and deep , they are flanked by strengthened collar - ribs which usually branch twice . Discussion Evolute ...
... whorl over the venter as there are at the umbilical shoulder . There are periodic constrictions , four or five per whorl ; narrow and deep , they are flanked by strengthened collar - ribs which usually branch twice . Discussion Evolute ...
Page 181
... whorl . There are seven constrictions per whorl with associated collar - ribs , the adapical collar branches into two or three , the adapertural one is simple and slightly weaker . On the outer whorl , the cross - section is somewhat ...
... whorl . There are seven constrictions per whorl with associated collar - ribs , the adapical collar branches into two or three , the adapertural one is simple and slightly weaker . On the outer whorl , the cross - section is somewhat ...
Page 216
... whorls are compressed ( whorl breadth to height ratio is as little as 0,83 ) , with the greatest breadth at the umbilical bullae . The flanks are compressed , subparallel to slightly convergent with a broadly rounded venter . There are ...
... whorls are compressed ( whorl breadth to height ratio is as little as 0,83 ) , with the greatest breadth at the umbilical bullae . The flanks are compressed , subparallel to slightly convergent with a broadly rounded venter . There are ...
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Common terms and phrases
Aeolidiella Affinity The affinity aperture Araucariacites Arecipites Australia Baeolidia Berghia bicuspidata Cape Province Cape Town Clavatipollenites sp climate Collignon colpi colpus common at Arnot Coniacian Cookson coracoid Couper deposit described Description Discussion distal end Distribution Duinefontein early Pliocene Equatorial diameter ERSITY exine exine is relatively extant flora Formation forms fossil genera genus geol gland grain Haughton holotype humerus Kangnasaurus kimberlite Knysna laesurae Langebaanweg late Cretaceous Maastrichtian margins Milfordia Milnerton Monocolpopollenites morphology Namibia Neogene nexine Oceanites Olson Pachyptila Palaeocene palynology paratypes pipes Pliocene Podocarpidites pollen pore Port Elizabeth present Procellariiformes Proteacidites proximal Puffinus rare at Arnot region Restionaceae rhinophores ribs sacci salax Saldanha SAN DIEGO sculpturing sediments sexine South African Museum south-western Cape southern Africa Spath species specimen spores Stover & Partridge SUID-AFRIKAANSE MUSEUM tarsometatarsus taxa Tertiary Tricolpites sp Tricolporopollenites Triorites tropical ulna umbilical bullae Velddrif venter ventral whorl width Zonalapollenites Zululand