Annals of the South African Museum: Annale Van Die Suid-Afrikaanse Museum, Volume 106South African Museum, 2003 - Natural history |
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Page 13
... seen in borehole PB - A1 at 2 467 ft ( 752 m ) in Pletmos Basin ( see McLachlan et al . 1976b ) and in the offshore Algoa Basin in borehole Hb - D1 ( see Fig . 2 ) . The transgression was probably induced by abrupt tectonic subsidence ...
... seen in borehole PB - A1 at 2 467 ft ( 752 m ) in Pletmos Basin ( see McLachlan et al . 1976b ) and in the offshore Algoa Basin in borehole Hb - D1 ( see Fig . 2 ) . The transgression was probably induced by abrupt tectonic subsidence ...
Page 160
... seen between F. nieuwjaarskopensis and the many varied Early Cretaceous species of the genus known from north - west Europe . Stratigraphic range in the Sundays River Formation Late Valanginian Biozone Bb to Late Hauterivian Biozone I ...
... seen between F. nieuwjaarskopensis and the many varied Early Cretaceous species of the genus known from north - west Europe . Stratigraphic range in the Sundays River Formation Late Valanginian Biozone Bb to Late Hauterivian Biozone I ...
Page 257
... seen , similar to that figured by McLachlan et al . ( 1976b , fig . 16 ( no . 26 ) ) from the Late Valanginian Brenton Formation . However , the commonest ossicles are similar to that illustrated here in Figure 78E . Indeterminate ...
... seen , similar to that figured by McLachlan et al . ( 1976b , fig . 16 ( no . 26 ) ) from the Late Valanginian Brenton Formation . However , the commonest ossicles are similar to that illustrated here in Figure 78E . Indeterminate ...
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