Annals of the South African Museum: Annale Van Die Suid-Afrikaanse Museum, Volume 106South African Museum, 2003 - Natural history |
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Page 7
... ( probably Zoetgeneugd ) . Early palaeontological studies have been summarized by McLachlan & McMillan ( 1976 ) . Lithostratigraphic studies have divided the sequence into a lower half of up to 2 400 m of minor conglomerates ( Enon ...
... ( probably Zoetgeneugd ) . Early palaeontological studies have been summarized by McLachlan & McMillan ( 1976 ) . Lithostratigraphic studies have divided the sequence into a lower half of up to 2 400 m of minor conglomerates ( Enon ...
Page 33
... probably very limited . Diverse foraminifera faunas occur through most of the interval , but some weathering and leaching appears to have occurred immediately below the Hauterivian - Pleistocene unconformity . Foraminifera faunas ...
... probably very limited . Diverse foraminifera faunas occur through most of the interval , but some weathering and leaching appears to have occurred immediately below the Hauterivian - Pleistocene unconformity . Foraminifera faunas ...
Page 45
... probably all of Biozone Bb age , Late Valanginian . Calcareous foraminifera are rare in the highest sample studied , and it seems likely that some leaching has occurred here . Ammonites from the Amsterdamhoek railway cutting and ...
... probably all of Biozone Bb age , Late Valanginian . Calcareous foraminifera are rare in the highest sample studied , and it seems likely that some leaching has occurred here . Ammonites from the Amsterdamhoek railway cutting and ...
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