Annals of the South African Museum: Annale Van Die Suid-Afrikaanse Museum, Volume 106South African Museum, 2003 - Natural history |
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Page 14
... ZONE A : 1976 OSTRACODA ABUNDANT OSTRACODS 1190 ' ZONE B : RARE OSTRACODS 290m I THIS STUDY * FORAMINIFERA Reinholdella platterugensis 254 II Upper Epistomina hechti 550 ' 790 ' III Amphicoryna pletmosiana 1150 ' IV Pseudopolymorphina ...
... ZONE A : 1976 OSTRACODA ABUNDANT OSTRACODS 1190 ' ZONE B : RARE OSTRACODS 290m I THIS STUDY * FORAMINIFERA Reinholdella platterugensis 254 II Upper Epistomina hechti 550 ' 790 ' III Amphicoryna pletmosiana 1150 ' IV Pseudopolymorphina ...
Page 34
... zone . Average thickness of biozone is 100 m . Biozone IV . Pseudopolymorphina colchesterensis Zone ( Total Range Zone ) Definition . Interval between the first down - hole appearance of Pseudopolymorphina colchesterensis and its last ...
... zone . Average thickness of biozone is 100 m . Biozone IV . Pseudopolymorphina colchesterensis Zone ( Total Range Zone ) Definition . Interval between the first down - hole appearance of Pseudopolymorphina colchesterensis and its last ...
Page 35
... Zone ( Partial Range Zone ) Definition . Interval between first down - hole abundance of Vaginulinopsis cf. V. matutina and the abrupt decrease in foraminifera diversity and abundance at the top of the Upper Poor Zone . Notes . This ...
... Zone ( Partial Range Zone ) Definition . Interval between first down - hole abundance of Vaginulinopsis cf. V. matutina and the abrupt decrease in foraminifera diversity and abundance at the top of the Upper Poor Zone . Notes . This ...
Contents
Introduction | 5 |
Foraminiferal biozonation of the Sundays River Formation | 33 |
The Algoa Basin outcrops | 44 |
Copyright | |
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Agrio Formation Albian ammonites apertural view Aptian Argentina assemblages Astacolus Barremian Bartenstein & Brand Berriasian Bettenstaedt borehole borehole PB-A1 Citharina Cliff outcrop sample Coega Coega Brick Pits core Dentalina DIEGO Dorothia dorsal margin down-hole appearance Early Barremian Early Cretaceous Early Hauterivian environments Eoguttulina Epistomina caracolla Espitalié & Sigal feet VII Figure final chamber final whorl foraminifera genus Graaff-Reinet grey claystone Haplophragmoides sp hofkeri Holotype illustrated Kimmeridgian Kirkwood Formation Lagena Late Hauterivian Biozone Late Valanginian Biozone lignite Lingulina Loeblich & Tappan Magniez-Jannin 1975 Majunga Basin Masiuk & Viña McLachlan Mngazana Basin Musacchio Nodosaria occur offshore ornamentation ostracods Paratype Planularia Pletmos Basin Portlandian rare lignite Reinholdella valendisensis Remarks Reuss Río Mayer Roemer shallow borehole shelf shell side view silty SOEKOR negative South Africa southern species specimens Stratigraphic range Sundays River Formation sutures test periphery test wall Trochammina Uitenhage Uitenhage to Graaff-Reinet Vaginulinopsis weakly Zoetgeneugd Cliff outcrop