Annals of the South African Museum: Annale Van Die Suid-Afrikaanse Museum, Volume 106 |
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Page 109
Occurrence Dorothia australis ranges through the Late Valanginian and earliest Hauterivian ( Biozones C to X ) of Pletmos Basin borehole PB - A1 ( McLachlan et al . 1976b ) . In Argentina the species is known from the Valanginian ...
Occurrence Dorothia australis ranges through the Late Valanginian and earliest Hauterivian ( Biozones C to X ) of Pletmos Basin borehole PB - A1 ( McLachlan et al . 1976b ) . In Argentina the species is known from the Valanginian ...
Page 129
The species also occurs widely in the offshore Pletmos , Gamtoos and Algoa basins off South Africa , where it is particularly frequent in Early and Late Valanginian rocks ( Biozones E to B ) . The extensive development of deep marine ...
The species also occurs widely in the offshore Pletmos , Gamtoos and Algoa basins off South Africa , where it is particularly frequent in Early and Late Valanginian rocks ( Biozones E to B ) . The extensive development of deep marine ...
Page 171
Subsequent examination of much larger numbers of tests from the Late Valanginian of the Pletmos , Gamtoos , Algoa and Mngazana basins have shown that this is an over - simplification , and the secondary extensions of the sutural ribs ...
Subsequent examination of much larger numbers of tests from the Late Valanginian of the Pletmos , Gamtoos , Algoa and Mngazana basins have shown that this is an over - simplification , and the secondary extensions of the sutural ribs ...
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Common terms and phrases
abundant Albian Algoa Basin Ammobaculites apertural appears Argentina assemblages Astacolus Barremian Bartenstein & Brand base Biozone Bb borehole chambers Clay close coil Colchester core Cretaceous depressed described distinct Dorothia dorsal Early Hauterivian environments Epistomina Espitalié & Sigal examples facing feet Figure final foraminifera genus grey claystone Haplophragmoides Holotype illustrated inflated initial interval Kimmeridgian Lagena Late Hauterivian Biozone Late Valanginian Biozone later Lenticulina lignite Lingulina localities lower Magniez-Jannin margin Masiuk McLachlan McLachlan et al middle Mngazana Nodosaria Occasional occur offshore ornamentation outcrop sample Paratype periphery Pletmos possess present probably rare referred Reinholdella Remarks Reuss ribs Roemer rounded seen shallow shelf shell side view similar SOEKOR South Africa southern species specimens Stratigraphic range studied Sundays River Formation surface sutures Tappan Uitenhage upper usually ventral weakly whorl wide Zone
Bibliographic information
| Title | Annals of the South African Museum: Annale Van Die Suid-Afrikaanse Museum, Volume 106 Volume 106 of Annals of the South African Museum, South African Museum Annals of the South African Museum: Annale Van Die Suid-Afrikaanse Museum, South African Museum |
| Author | South African Museum |
| Publisher | South African Museum, 2003 |
| Original from | the University of California |
| Digitized | 8 Dec 2009 |
| ISBN | 0868131784, 9780868131788 |
| Export Citation | BiBTeX EndNote RefMan |