Annals of the South African Museum: Annale Van Die Suid-Afrikaanse Museum, Volume 106South African Museum, 2003 - Natural history |
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Page 18
... studied but the latter yielded only plant debris . The sediments at Mngazana consist of conglomerates , lignitic sandstones , mudstones and occasional limestone lenses , but nevertheless , 32 species of foraminifera were obtained . The ...
... studied but the latter yielded only plant debris . The sediments at Mngazana consist of conglomerates , lignitic sandstones , mudstones and occasional limestone lenses , but nevertheless , 32 species of foraminifera were obtained . The ...
Page 24
... studied from the upper part of the Agrio Formation , and Olcostephanus cf. atherstoni ( Sharpe ) and Olcostephanus ... studied sample , again suggesting an Early Barremian age ( Riccardi 1988 ) . Bertels ( 1990 ) also studied the Río ...
... studied from the upper part of the Agrio Formation , and Olcostephanus cf. atherstoni ( Sharpe ) and Olcostephanus ... studied sample , again suggesting an Early Barremian age ( Riccardi 1988 ) . Bertels ( 1990 ) also studied the Río ...
Page 44
... studied from Amsterdamhoek , Coega Brick Pits , Colchester Cliff , Uitenhage to Graaff - Reinet Road , and Zoetgeneugd Cliff are the same as those studied for Ostracoda by Valicenti & Stephens ( 1984 ) . The levels of samples studied ...
... studied from Amsterdamhoek , Coega Brick Pits , Colchester Cliff , Uitenhage to Graaff - Reinet Road , and Zoetgeneugd Cliff are the same as those studied for Ostracoda by Valicenti & Stephens ( 1984 ) . The levels of samples studied ...
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