Annals of the South African Museum: Annale Van Die Suid-Afrikaanse Museum, Volume 106South African Museum, 2003 - Natural history |
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Page 82
... final whorl . Test periphery distinctly lobate throughout , very broadly rounded in cross - section . Test subglobular in overall shape . Test wall composed of moderately sized , often rather platy quartz grains with moderate cement ...
... final whorl . Test periphery distinctly lobate throughout , very broadly rounded in cross - section . Test subglobular in overall shape . Test wall composed of moderately sized , often rather platy quartz grains with moderate cement ...
Page 95
... final whorl , a wide depressed umbilicus , straight or weakly curved , radiate , depressed sutures on the ventral side and oblique , backward - curving , depressed sutures on the dorsal side . Tests similar to the Sundays River shells ...
... final whorl , a wide depressed umbilicus , straight or weakly curved , radiate , depressed sutures on the ventral side and oblique , backward - curving , depressed sutures on the dorsal side . Tests similar to the Sundays River shells ...
Page 247
... final whorl . Chambers wedge - shaped in ventral view , semicircular to lunate in dorsal view . Last - formed one or two chambers weakly inflated , especially on the ventral side . Sutures indistinct to distinct ; on the ventral side ...
... final whorl . Chambers wedge - shaped in ventral view , semicircular to lunate in dorsal view . Last - formed one or two chambers weakly inflated , especially on the ventral side . Sutures indistinct to distinct ; on the ventral side ...
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