Annals of the South African Museum: Annale Van Die Suid-Afrikaanse Museum, Volume 106South African Museum, 2003 - Natural history |
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Page 107
... periphery lobate in the later part of the test , weakly arched in the initial part ; very broadly rounded , subcircular in cross - section . Test slightly compressed , so that final portion is usually distinctly wider than deep ...
... periphery lobate in the later part of the test , weakly arched in the initial part ; very broadly rounded , subcircular in cross - section . Test slightly compressed , so that final portion is usually distinctly wider than deep ...
Page 134
... periphery of test acutely rounded throughout , never carinate or angled , although a thick flange with a rounded margin is often developed along the dorsal periphery in the early uncoiled portion of adult tests . Axial periphery ...
... periphery of test acutely rounded throughout , never carinate or angled , although a thick flange with a rounded margin is often developed along the dorsal periphery in the early uncoiled portion of adult tests . Axial periphery ...
Page 170
... periphery sub - circular to ovate , continuous . Equatorial periphery acutely angled and with a narrow - bladed keel for much of its length on the dorsal margin , and flat , rectangular on the ventral margin . Chambers arranged in an ...
... periphery sub - circular to ovate , continuous . Equatorial periphery acutely angled and with a narrow - bladed keel for much of its length on the dorsal margin , and flat , rectangular on the ventral margin . Chambers arranged in an ...
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