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
... Mngazana and Mbotyi basins , were 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 ...
... Mngazana and Mbotyi basins , were 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 ...
Page 162
... Mngazana species occur widely in the Early Valanginian of the offshore Gamtoos Basin , but generally possess about 15 rather than the ten or so ribs of the Mngazana tests . It is clear that the Mngazana material warrants a new name ...
... Mngazana species occur widely in the Early Valanginian of the offshore Gamtoos Basin , but generally possess about 15 rather than the ten or so ribs of the Mngazana tests . It is clear that the Mngazana material warrants a new name ...
Page 171
... Mngazana ( McLachlan et al . 1976a ) and borehole PB - A1 ( McLachlan et al . 1976b ) indicated that one or two short secondary ribs were developed from each sutural rib . Subsequent examination of much larger numbers of tests from the ...
... Mngazana ( McLachlan et al . 1976a ) and borehole PB - A1 ( McLachlan et al . 1976b ) indicated that one or two short secondary ribs were developed from each sutural rib . Subsequent examination of much larger numbers of tests from the ...
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