Annals of the South African Museum, Volume 103, Issue 7 |
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Page 396
A simple calculation of regional dominance gives the following abundances in order of rank : areas north of 24 ° S - Palmoconcha walvisbaiensis 32 per cent , Cytherella namibensis cent ; south of 24 ° S - Pseudokeijella lepralioides ...
A simple calculation of regional dominance gives the following abundances in order of rank : areas north of 24 ° S - Palmoconcha walvisbaiensis 32 per cent , Cytherella namibensis cent ; south of 24 ° S - Pseudokeijella lepralioides ...
Page 410
Seven species occur in sediments with average values > 70 per cent , with Buntonia gibbera having a mean value > 85 per cent . Palmoconcha walvisbaiensis is the only species to occur in opal - rich sediments ( mean value of 28 % for all ...
Seven species occur in sediments with average values > 70 per cent , with Buntonia gibbera having a mean value > 85 per cent . Palmoconcha walvisbaiensis is the only species to occur in opal - rich sediments ( mean value of 28 % for all ...
Page 411
The distribution falls into two clear groups : species with means > 4 per cent and those with < 3 per cent . In the higher category , Australoecia fulleri ( 9 % ) occurs apart from the other means , which lie approximately linearly ...
The distribution falls into two clear groups : species with means > 4 per cent and those with < 3 per cent . In the higher category , Australoecia fulleri ( 9 % ) occurs apart from the other means , which lie approximately linearly ...
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100 specimens abundant species Ambostracon flabellicostata Ambostracon keeleri apatite Australoecia fulleri Austroaurila rugosa authigenic Average Bairdoppilata simplex Bensonia k bottom sediments Buntonia bremneri Buntonia deweti Buntonia gibbera Buntonia namaquaensis Buntonia rogersi Buntonia rosenfeldi CaCO3 Glauconite Phosphorite calcium carbonate Cape Columbine Cape Peninsula cent Chrysocythere craticula continental shelf Coquimba birchi Correlation coefficients Cytherella dromedaria Cytheropteron trinodosum Cytheropteron whatleyi Dingle Dissolved oxygen Organic Doratocythere exilis environmental parameters fauna Fe CaCO3 Glauconite Henryhowella melobesioides Incongruellina venusta Indet knysnaensis Krithe capensis Krithe spatularis Kunene River Lüderitz Macrocypris cf matter Depth Latitude metuenda ml/l MORG Namaqualand Neocaudites lordi Neocaudites osseus Neocytherideis boomeri Orange River Organic matter Depth ostracod oxygen Organic matter Palmoconcha walvisbaiensis Paracypris lacrimata Poseidonamicus panopsus Pseudokeijella lepralioides robusta Ruggieria cytheropteroides S.D. Range Salinity Dissolved oxygen Sand Mud Opal sea-floor sediments sediments south-western Africa SWCA taxa temperature and salinity Temperature Salinity Dissolved terrigenous upwelling Urocythereis arcana Walvis Bay Walvis Ridge Xestoleberis africana Xestoleberis hartmanni