Annals of the South African Museum: Annale Van Die Suid-Afrikaanse Museum, Volume 106South African Museum, 2003 - Natural history |
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Page 99
... distinct , depressed , with the spiral suture almost horizontally aligned . Aperture interio - marginal , at the base of the final chamber , in form apparently a low elongate slit , but not well preserved in any of the specimens ...
... distinct , depressed , with the spiral suture almost horizontally aligned . Aperture interio - marginal , at the base of the final chamber , in form apparently a low elongate slit , but not well preserved in any of the specimens ...
Page 134
... distinct ; in initial part of test raised , limbate and regularly curved ; in uncoiled part they are strongly limbate and raised centrally , but weakly raised to flush near to both the ventral and dorsal margins . The sutures thus tend ...
... distinct ; in initial part of test raised , limbate and regularly curved ; in uncoiled part they are strongly limbate and raised centrally , but weakly raised to flush near to both the ventral and dorsal margins . The sutures thus tend ...
Page 241
... distinct in the later part of the test , weakly raised , limbate , curved to almost straight , oblique ; ventral sutures initially indistinct , generally with the last two or three becoming distinct , radiate , weakly depressed , curved ...
... distinct in the later part of the test , weakly raised , limbate , curved to almost straight , oblique ; ventral sutures initially indistinct , generally with the last two or three becoming distinct , radiate , weakly depressed , curved ...
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