Annals of the South African Museum: Annale Van Die Suid-Afrikaanse Museum, Volume 106South African Museum, 2003 - Natural history |
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Page 154
... rib that is continuous for most of the height of the test ; the rib is low and rounded in cross - section . Two additional ribs are present , one on either side of the thickened rib , and are sub - parallel to it , thus forming an ...
... rib that is continuous for most of the height of the test ; the rib is low and rounded in cross - section . Two additional ribs are present , one on either side of the thickened rib , and are sub - parallel to it , thus forming an ...
Page 161
... ribs , which are sharply defined from the remaining , unornamented test surface . Ribs rounded in cross - section , rarely acute , although the difference is probably due to post - depositional leaching of acute ribs . The ribs merge at ...
... ribs , which are sharply defined from the remaining , unornamented test surface . Ribs rounded in cross - section , rarely acute , although the difference is probably due to post - depositional leaching of acute ribs . The ribs merge at ...
Page 170
... ribs over the umbilicus . Etymology Named from its frequent occurrence in the Coega Brick Pits sections . Material ... ribs , generally rounded and broad in cross - section , but occasionally rather acute and bladed . The sutural ribs ...
... ribs over the umbilicus . Etymology Named from its frequent occurrence in the Coega Brick Pits sections . Material ... ribs , generally rounded and broad in cross - section , but occasionally rather acute and bladed . The sutural ribs ...
Contents
Introduction | 5 |
Foraminiferal biozonation of the Sundays River Formation | 33 |
The Algoa Basin outcrops | 44 |
Copyright | |
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Common terms and phrases
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