Annals of the South African Museum: Annale Van Die Suid-Afrikaanse Museum, Volume 106South African Museum, 2003 - Natural history |
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Page 117
... proloculus followed by a lower , tubular second chamber that encircles the proloculus for one whorl . Following the second chamber are from three to five inflated , pyriform chambers which taper anteriorly toward the following chamber ...
... proloculus followed by a lower , tubular second chamber that encircles the proloculus for one whorl . Following the second chamber are from three to five inflated , pyriform chambers which taper anteriorly toward the following chamber ...
Page 159
... proloculus is always prominent , subglobular to pyriform . All subsequent chambers sagittate , strongly overlapping , with the final chamber extending backwards for one - third to two - thirds of the test height . Proloculus bordered ...
... proloculus is always prominent , subglobular to pyriform . All subsequent chambers sagittate , strongly overlapping , with the final chamber extending backwards for one - third to two - thirds of the test height . Proloculus bordered ...
Page 160
... proloculus , that rapidly widens and subsides in intensity upwards , away from the proloculus . Remarks Species of Frondicularia are everywhere very rare in the Valanginian and Hauterivian rocks of South Africa . This may be partly due ...
... proloculus , that rapidly widens and subsides in intensity upwards , away from the proloculus . Remarks Species of Frondicularia are everywhere very rare in the Valanginian and Hauterivian rocks of South Africa . This may be partly due ...
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